LON - PHL

£354 Find Cheap Flights from London to Philadelphia

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Philadelphia departing on 24/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Philadelphia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Philadelphia.
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
Flights Deals

Cheap Flights from London to Philadelphia (LON-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Philadelphia

Sun, 24 Aug - Tue, 23 Sep
 Logo
14:00 - 11:34LGW-PHL
26h 34m1 stop
 Logo
06:45 - 07:00PHL-LGW
19h 15m1 stop
Wed, 3 Sep - Wed, 17 Sep
JetBlue Logo
12:10 - 21:24LGW-PHL
14h 14m1 stop
JetBlue Logo
18:40 - 09:35PHL-LGW
9h 55m1 stop
£355JetBlue
Find Deal
Tue, 8 Jul - Tue, 29 Jul
Finnair Logo
18:10 - 11:45LHR-PHL
22h 35m1 stop
Finnair Logo
16:00 - 12:15PHL-LHR
15h 15m2 stops
£433Finnair
Find Deal
Tue, 8 Jul - Thu, 7 Aug
Finnair Logo
21:20 - 13:50LHR-PHL
21h 30m1 stop
Finnair Logo
17:35 - 12:30PHL-LHR
13h 55m1 stop
£439Finnair
Find Deal
Tue, 16 Sep - Mon, 29 Sep
British Airways Logo
12:30 - 15:25LHR-PHL
7h 55mdirect
British Airways Logo
17:14 - 07:50PHL-LHR
9h 36m1 stop
£444British Airways
Find Deal
Tue, 2 Sep - Wed, 10 Sep
British Airways Logo
10:05 - 13:10LHR-PHL
8h 05mdirect
British Airways Logo
18:30 - 06:40PHL-LHR
7h 10mdirect
£446British Airways
Find Deal
Mon, 23 Jun - Mon, 30 Jun
Iberia Logo
12:30 - 15:25LHR-PHL
7h 55mdirect
Iberia Logo
19:50 - 08:05PHL-LHR
7h 15mdirect
£473Iberia
Find Deal
Mon, 23 Jun - Mon, 30 Jun
Iberia Logo
10:05 - 13:00LHR-PHL
7h 55mdirect
Iberia Logo
22:15 - 10:20PHL-LHR
7h 05mdirect
£478Iberia
Find Deal
Thu, 11 Sep - Thu, 18 Sep
Aer Lingus Logo
06:45 - 19:00LCY-PHL
17h 15m1 stop
Aer Lingus Logo
20:30 - 20:50PHL-LCY
19h 20m1 stop
£667Aer Lingus
Find Deal
Tue, 8 Jul - Thu, 7 Aug
Aer Lingus Logo
20:30 - 11:45LCY-PHL
20h 15m1 stop
Aer Lingus Logo
06:08 - 17:30PHL-LCY
30h 22m2 stops
£723Aer Lingus
Find Deal
Expert advice

Expert advice for your flight from London to Philadelphia

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
British Airways

Premium economy offers extra legroom and priority boarding, ideal for long-haul comfort.


BA's CityFlyer from London City Airport offers fast, easy travel without 100 ml liquid limits.

Finnair

Finnair's A350 offers lower cabin altitude and higher humidity for a more comfortable journey.


Economy Comfort provides extra legroom for a small charge, enhancing comfort on long-haul flights.

Read more about Finnairby Gabriel Leigh
American Airlines

Basic Economy offers low fares but includes restrictions like late boarding and no free checked bags.


Main Cabin Extra provides early boarding and complimentary drinks, enhancing comfort on longer flights.

Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Useful Info

KAYAK's insights & trends for London to Philadelphia flights

Get data-powered insights and trends into flights from London to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Philadelphia
Find cheap flights to Philadelphia

Planning a trip from London to Philadelphia? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What is the cheapest London to Philadelphia flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Philadelphia.

Our data shows that the cheapest route for a return flight from London to Philadelphia cost £416 and was between London Heathrow Airport (LHR) and Philadelphia (PHL). On average, the best prices are found if you fly this route. The average price for a return flight for this route is £416.

What’s the cheapest day of the week to fly from London to Philadelphia?

The average price of all round-trip flights from London to Philadelphia clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Philadelphia on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from London to Philadelphia. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.

What is the cheapest month to fly from London to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Philadelphia is February, where tickets cost £488 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is £717 and £639 respectively.

Can I save money by flying with a stopover from London to Philadelphia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £693 on average.

How far in advance should I book a flight from London to Philadelphia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Philadelphia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.


Good to know - Cheap tickets from London to Philadelphia

Low seasonMarch
High seasonDecember
Cheapest flight£192
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from London Gatwick Airport to Philadelphia

When to book flights from London to Philadelphia

Are your dates flexible? Find out the best times to travel from London to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from London to Philadelphia: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from London to Philadelphia 
Verified travelerFlew with American AirlinesLHR-PHLJul 2024
Make sure you are at the airport at least 3 hours early to ensure that you can check in, go through security, and so that you can find your departure gate within plenty of time so you are not rushing.
Anne KatherineFlew with IberiaLHR-PHLJul 2024
Need more snacks. As meals not big and need more to eat Also take own water on board as not enough drinks offered from cabin crew - can feel dehydrated during flight

FAQs for booking flights from London to Philadelphia

  • Which terminal at the London Heathrow Airport has the most to offer?

    All terminals at the London Heathrow Airport are very modern and offer a lot of convenient services, however Terminal 2 and Terminal 5 are considered to be the best according to world lists. Terminal 2 has many interesting restaurants like The Gorgeous Kitchen or The Flying Chariot whereas Terminal 5 offers a quality shopping experience with brands such as Chanel and Valentino.

  • How do I get to central Philadelphia from Philadelphia Airport?

    Getting to the city centre of Philadelphia is easy with a SEPTA train that departs every half an hour from all terminals, the ticket will cost you about 6£. A cheaper alternative is a SEPTA bus with one airport stop on the Arrivals Road and three routes that take you through different stops. Those who prefer a more comfortable mode of transportation can take a taxi, the fare from the airport to the city centre is around 22£.

  • Can I rent a car at the Philadelphia Airport?

    Yes, a car is the most common mode of transportation in the United States and if you plan to visit a lot of places which are spread out around the city, it is a good idea to rent a car at the airport. There are seven rental agencies at Philadelphia International Airport and you can reach them from the baggage claim zone via a free shuttle.

  • Does the Philadelphia Airport provide any services for travellers with animals?

    Those who are travelling to Philadelphia with a furry companion will be happy to hear that there are seven Pet Ports inside of each terminal and a few outdoor relief areas for animals which will surely make the time at the airport more bearable for the animals.

  • What hotels are there at London’s airports?

    Travellers that are departing early or those that just want to relax before their flight can stay at one of London’s airport hotels before their flight. For instance, if you are leaving from Heathrow Airport (LHR), you can use Aerotel, whilst Gatwick Airport (LGW) has Courtyard by Marriott. Alternatively, if you are leaving from Stansted Airport (STN), you can opt for Holiday Inn Express.

  • Which superior cabin classes are on flights from London to Philadelphia?

    As the flight from London to Philadelphia is quite long, you can enhance your comfort by booking an exclusive cabin class. For instance, if you fly with American Airlines, you will have the option of a first-class cabin, which offers comfy seats that fully recline.

  • How can I lower my carbon emissions by taking a specific flight from London to Philadelphia?

    If you want to reduce how much carbon output is attributed to your travel, you should look for flights that release fewer emissions. For instance, Iberia completes this route releasing roughly 64% fewer emissions compared to the average flight.

  • What flights from London to Philadelphia Airport (PHL) have internet?

    If you’re travelling to Philadelphia for work or if you just want to stay connected to your loved ones, you can choose an airline with internet access. For example, Iberia offers Wi-Fi to passengers throughout the journey.

  • What is the cheapest flight from London to Philadelphia?

    In the last 3 days, the lowest price for a flight from London to Philadelphia was £261 for a one-way ticket and £481 for a return.

  • Which airports will I be using when flying from London to Philadelphia?

    On your way to Philadelphia, you’ll fly out from one of these London airports: London City, London Gatwick, London Heathrow, London Luton, or London Stansted. You’ll be landing at Philadelphia.

  • Which airlines offer Wi-Fi service onboard planes from London to Philadelphia?

    American Airlines, Air France, KLM, Virgin Atlantic, and Delta offer inflight Wi-Fi service on the London to Philadelphia flight route.

  • Which aircraft models fly most regularly from London to Philadelphia?

    The Airbus A350-1000 is the aircraft model that flies most regularly on the London to Philadelphia flight route.

  • Which airline alliances offer flights from London to Philadelphia?

    oneworld is the only airline alliance operating flights between London and Philadelphia.

  • On which days can I fly direct from London to Philadelphia?

    There are direct flights from London to Philadelphia on a daily basis.

  • Which is the best airline for flights from London to Philadelphia, Finnair or United Airlines?

    The two airlines most popular with KAYAK users for flights from London to Philadelphia are Finnair and United Airlines. With an average price for the route of £567 and an overall rating of 7.6, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of £382 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from London to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Philadelphia with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Philadelphia

  • Looking for a cheap flight from London to Philadelphia? 25% of our users found flights on this route for £471 or less one-way and £490 or less round-trip.
  • If you get hungry while waiting for your flight from London to Philadelphia, you will find a wide range of restaurants at London Heathrow Airport. You can even pre-order your food and drinks at some restaurants via the Heathrow app if you wish to avoid waiting in lines.
  • Want to fly from London to Philadelphia without any stops along the way? That is not an issue as you can find regular non-stop flights London Heathrow Airport to Philadelphia with British Airways, Finnair and American Airlines.
  • Those who booked their flights from London to Philadelphia with British Airways can relax in the comfort of the airline’s lounges at terminal 3 and terminal 5. London Heathrow Airport is the home hub for British Airways so the passengers can expect a variety of services and lounges, for example the Galleries Club lounges primarily for first class or premium members.
  • Kids will not be bored while waiting for a flight at Philadelphia Airport as they will have a lot of fun at the aviation-themed playground in terminal A. Mothers who are travelling with infants can use the Mamava suite or Family Restrooms located around the airport. The Nursing Mother’s Station is also available and is free for up to 30 minutes.
  • Philadelphia Airport makes sure to keep the waiting passengers occupied by setting up art exhibitions around the airport grounds. Those who have a lot of time until their flight can also enjoy a book from a virtual library that is available free of charge or relax at XpresSpa while getting a massage or beauty treatments.
  • Passengers flying from London to Philadelphia can request assistance from their airline before they travel. To do this, you should contact your airline a minimum of 48 hours ahead of take-off, so they have plenty of time to arrange for a member of staff to meet you upon arrival at the terminal.
  • British citizens are required to obtain an Electronic System for Travel Authorisation (ESTA) before they travel to the USA. If you don’t, you will be refused entry upon arrival. You must also check that your passport will be valid for the whole of your stay.

Prefer to fly direct from London to Philadelphia?

Find which airlines fly direct from London to Philadelphia Airport, which days they fly and book direct flights.

Direct departures

London to Philadelphia

Monday

American Airlines, British Airways

American Airlines, British Airways

Tuesday

American Airlines, British Airways

American Airlines, British Airways

Wednesday

American Airlines, British Airways

American Airlines, British Airways

Thursday

American Airlines, British Airways

American Airlines, British Airways

Friday

American Airlines, British Airways

American Airlines, British Airways

Saturday

American Airlines, British Airways

American Airlines, British Airways

Sunday

American Airlines, British Airways

American Airlines, British Airways

See more direct flights

Direct returns

Philadelphia to London

Monday

American Airlines, British Airways

American Airlines, British Airways

Tuesday

American Airlines, British Airways

American Airlines, British Airways

Wednesday

American Airlines, British Airways

American Airlines, British Airways

Thursday

American Airlines, British Airways

American Airlines, British Airways

Friday

American Airlines, British Airways

American Airlines, British Airways

Saturday

American Airlines, British Airways

American Airlines, British Airways

Sunday

American Airlines, British Airways

American Airlines, British Airways

See more direct flights
See more direct flights

Top 5 airlines serving from London to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from London to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1290 reviews
7.6Boarding
7.4Comfort
6.7Food
6.9Entertainment
8.1Crew
Airline reviews

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

2.0 MediocreAnonymous, May 2025ORD - IND
Read more Finnair reviews

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

You get what you pay for. In general I like the service and flight attendants.

Excellent! Outstanding customer service, the best service I have received. Food was served, dinner, snacks, beverages, crew was there to greet you. 10/10

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Great to have power available for every seat in Premium Economy. I do wish the WiFi was less expensive. It was 23-24 Euros for the flight for one device. And there were times it was unavailable.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

The crew on AA international flights in my experience are generally lazy, rude, and inefficient. These guys did not disappoint.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

I wish they could put the pre-tsa check on the tickets or global entry.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

Everything you need to know for your flight from London to Philadelphia

Other airlines flying from London to Philadelphia

Flights from the other most popular airlines that fly from London to Philadelphia according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.