PHL - LON

£157 Find Cheap Flights from Philadelphia to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to London departing on 14/7. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to London, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Philadelphia to London (PHL-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Philadelphia to London 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.

Recent return flight deals from Philadelphia to London

KAYAK's recommended return flight deals from the most popular airlines that fly from Philadelphia to London.
Discover the best prices for you by selecting your travel dates on KAYAK.
JetBlue Logo
15:00 - 09:35PHL-LGW
13h 35m1 stop
JetBlue Logo
12:10 - 18:42LGW-PHL
11h 32m1 stop
£415JetBlue
Find Deal
Wed, 1 Oct - Tue, 7 Oct
JetBlue Logo
15:00 - 09:35PHL-LGW
13h 35m1 stop
JetBlue Logo
12:10 - 18:42LGW-PHL
11h 32m1 stop
£427JetBlue
Find Deal
Tue, 30 Sep - Fri, 10 Oct
Icelandair Logo
15:00 - 09:35PHL-LGW
13h 35m1 stop
Icelandair Logo
12:10 - 18:42LGW-PHL
11h 32m1 stop
£466Icelandair
Find Deal
Wed, 3 Sep - Sun, 14 Sep
Icelandair Logo
10:20 - 06:30PHL-LHR
15h 10m1 stop
Icelandair Logo
08:25 - 22:22LHR-PHL
18h 57m1 stop
£497Icelandair
Find Deal
Wed, 3 Sep - Sun, 14 Sep
British Airways Logo
18:30 - 06:40PHL-LHR
7h 10mdirect
British Airways Logo
08:55 - 14:00LHR-PHL
10h 05m1 stop
£535British Airways
Find Deal
Mon, 22 Sep - Fri, 3 Oct
British Airways Logo
19:40 - 07:55PHL-LHR
7h 15mdirect
British Airways Logo
08:00 - 14:00LHR-PHL
11h 00m1 stop
£538British Airways
Find Deal
Wed, 20 Aug - Tue, 26 Aug
Iberia Logo
22:25 - 10:20PHL-LHR
6h 55mdirect
Iberia Logo
10:05 - 13:00LHR-PHL
7h 55mdirect
£539Iberia
Find Deal
Tue, 2 Sep - Tue, 16 Sep
Iberia Logo
17:30 - 07:50PHL-LHR
9h 20m1 stop
Iberia Logo
20:00 - 20:20LHR-PHL
29h 20m2 stops
£542Iberia
Find Deal
Wed, 3 Sep - Mon, 8 Sep
Aer Lingus Logo
20:30 - 11:10PHL-LHR
9h 40m1 stop
Aer Lingus Logo
08:50 - 19:00LHR-PHL
15h 10m1 stop
£565Aer Lingus
Find Deal
Tue, 5 Aug - Wed, 20 Aug
Aer Lingus Logo
20:30 - 12:40PHL-LHR
11h 10m1 stop
Aer Lingus Logo
07:40 - 19:00LHR-PHL
16h 20m1 stop
£579Aer Lingus
Find Deal
Mon, 18 Aug - Sat, 23 Aug
Expert advice

Expert advice for your flight from Philadelphia to London

 
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 specific 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
Finnair

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


Finnair's Economy Comfort offers more legroom for a small additional charge.

Read more about Finnairby Gabriel Leigh
British Airways

BA's premium economy offers 18 cm extra legroom, ideal for long flights.


BA's cabin crew are known for their professionalism and proactive service.

Iberia

Iberia's business class offers all-aisle access and comfortable bedding.


Iberia's Wi-Fi is available on most flights, with free messaging for loyalty members.

Read more about Iberiaby Marisa Garcia
Our travel experts
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
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
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Read more
Useful Info

KAYAK's insights & trends for Philadelphia to London flights

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

What is the cheapest Philadelphia to London flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Philadelphia to London.
Our data shows that the cheapest route for a return flight from Philadelphia to London cost £473 and was between Philadelphia (PHL) and London Heathrow Airport (LHR). On average, the best prices are found if you fly this route. The average price for a return flight for this route is £473.

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

The average price of all round-trip flights from Philadelphia to London clicked on KAYAK for each day over the last 12 months.
For Philadelphia to London, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from London back to Philadelphia, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to London, 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 Philadelphia to London is February, where tickets cost £495 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £846 and £745 respectively.

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

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.
No, with an average price for the route of £1,775, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to London, 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 Philadelphia to London, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know - Cheap tickets from Philadelphia to London

Low season

February

High season

August
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.

When to book flights from Philadelphia to London

Are your dates flexible? Find out the best times to travel from Philadelphia to London 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 Philadelphia to London: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Philadelphia to London 
Verified travelerFlew with British AirwaysPHL-LHRSept 2024
The over night flight was good. We were given a delicious dinner and then were able to take some time to slowly drift off to sleep, if possible. The choice of movies was really great too!
Verified travelerFlew with British AirwaysPHL-LHROct 2024
Eat well before boarding if you’re a picky eater.
GlennFlew with British AirwaysPHL-LHRJun 2024
British airways could have many delays, ensure there's enough time for the layover
Verified travelerFlew with British AirwaysPHL-LHRApr 2024
Would fly this route with this airline again.

FAQs for booking flights from Philadelphia to London

  • Is it possible to fly from Philadelphia International Airport (PHL) to London non-stop?

    You can find non-stop flights from PHL to London Heathrow Airport (LHR). Multiple airlines offer flights with one and two stops, including American Airlines, British Airways, United Airlines, and Delta Air Lines, with common layovers in New Jersey, Miami, and Washington DC.

  • Are there currency exchange offices at London Heathrow Airport (LHR)?

    Yes, there are a few currency exchange desks at LHR terminals, making it not only safer but convenient as you move around with money. At London Heathrow, you have the choice of ordering the currency online then collecting it as you pass through the airport, or getting currency conversion on the spot. You will find that the conversion prices are different for these two options.

  • Does London Heathrow Airport (LHR) offer any facilities for families?

    Heathrow Airport has several amenities suitable for groups of people traveling with children, including complimentary kid’s meals, baby changing areas, family-friendly parking, as well as a free Mr. Adventure Stay and Play areas filled with slides, coloring stations, and activity sheets.

  • Are there any services for travelers with limited mobility at London Airports?

    Disability assistance services should be arranged for before your day of travel. You will find that the airport bathrooms are readily equipped to cater to passengers with wheelchairs, with most having private bathrooms for people with reduced mobility.

  • What is the cheapest flight from Philadelphia to London?

    In the last 3 days, the lowest price for a flight from Philadelphia to London was £211 for a one-way ticket and £557 for a return.

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

    All the following airlines offer inflight Wi-Fi service on the Philadelphia to London flight route: American Airlines, Iberia, Finnair, British Airways, Aer Lingus, and Delta.

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

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Philadelphia to London flight route.

  • Which airline alliances offer flights from Philadelphia to London?

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

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

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

  • Which is the best airline for flights from Philadelphia to London, JetBlue or Iberia?

    The two airlines most popular with KAYAK users for flights from Philadelphia to London are JetBlue and Iberia. With an average price for the route of £444 and an overall rating of 7.3, JetBlue is the most popular choice. Iberia is also a great choice for the route, with an average price of £683 and an overall rating of 7.0.

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

    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 Philadelphia to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Philadelphia 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 Philadelphia to London?

    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 London with an airline and back to Philadelphia with another airline.

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

    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 London from Philadelphia 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 Philadelphia to London

  • Looking for a cheap flight from Philadelphia to London? 25% of our users found flights on this route for £397 or less one-way and £548 or less round-trip.
  • Philadelphia International Airport (PHL) is the main airport in the city of Philadelphia and is located approximately 11.3 miles from the city center. Since the airport is centrally located, it can be accessed by a majority of residents in Philadelphia, as well as neighboring cities such as Ardmore, Doylestown, Amber, and Lambertville in New Jersey.
  • There are six major airports in London: London Gatwick (LGW), London Luton (LTN), London City (LCY), London Heathrow (LHR), London Southend (SEN), and London Stansted (STN). If you will be staying in the city, you can opt for flights that land at London Heathrow or London City as they are conveniently located on the London Underground and DLR systems.
  • If you are traveling to London for business, you’ll find that the London City Airport is a good airport for your trip as it is conveniently situated in central London and is easily accessible to the city.
  • The distance between London City Airport and Central London is roughly 6.2 miles. If you want to get to the city center via public transportation, you can take the DLR train for roughly 22min. A taxi or car will get you there in around 30min. If you are coming from London Heathrow, you can use trains exiting from Terminals 2 and 3, which leave every 15min and can get you to central London in around 15min.
  • As you wait for your flight, there are several amenities you could take advantage of at the Philadelphia International Airport. For one, head on over to one of the 50 eateries on-site and grab a quick bite. The airport also has a virtual library available and open to passengers. Alternatively, the XpresSpa has several locations offering manicures, pedicures, massages, and facials if you would like to pamper yourself a little.

Prefer to fly direct from Philadelphia to London?

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

Direct departures

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

Direct returns

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
See more direct flights

Top 4 airlines serving from Philadelphia to London

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to London. 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 Philadelphia to London? 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.
7.3
JetBlueOverall score based on 2922 reviews
6.7Food
7.3Entertainment
7.5Boarding
7.6Comfort
8.0Crew
Airline reviews

Excellent from start to finish. All staff members were amazing!

10.0 ExcellentPeter, Apr 2025BOS - AMS
Read more JetBlue reviews

Excellent from start to finish. All staff members were amazing!

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

Cancelled flight with no specific instructions to get a boarding pass for another flight. The whole flight of people were in line for an hour because there was only 1 person to help at the desk. This was unusual for JetBlue.

It was too hot in the cabin. The AC did not help.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

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.

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

The seats were way too crowded. Just because I do not have the luxury of a suite, does not mean that I want to fly from Austin to London scrunched between two people and the seat in front of me in my face. Ridiculous. I should have flown with Turkish Airlines...

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

Paid for “extra room” selected seat. Wasn’t a benefit. Also was in aisle and was bumped almost every time attendants walked down aisle. Should have saved the assigned seat money and let them select.

Everything OK , except the plane left more than an hour late so I couldn’t participate in an excursion I had that morning in Brcelona

Flight from Madrid to Dakar had no onboard entertainment for a business class. Not even a single screen . That was disappointing. The WiFi only worked for the first 45 mins of the flight.

very good all round. staff, food, entertainment, punctuality all very good

The cabin crew were great very helpful and accommodating. We had a fellow passenger throw up next to us. The flight crew did an amazing job cleaning up and reseating us. We did question as to if he should have been let on the flight as his condition was likely self imposed.

online check-in was horrible and didn't work either way

Horrible. Paid for seats for my family. Iberia changed planes and never notified us that the seats we paid extra for did not even exist on the plane. We were randomly placed on the plane. Thankfully, we were seated together. Upon boarding, my youngest daughter was pulled from the line and they just arbitrarily changed her seat 7 rows back from the rest of the family. I had to wait at the gate while they tried to see us back together. One of the most uncomfortable small spaces on a plane I’ve ever experienced. When I called Iberia, they first told me that no mistake was made that the plane was never changed. Yet my receipt for my paid seats were for rows that did not even exist on this type of plane we were getting on. They said that they would reimburse my money and I would get an email, but I’ve never received any information or emails regarding a refund for the seats that I had paid extra for. Then when we arrived in Madrid, one of the pieces of luggage that we had checked in was damaged to the point that the handle that was stowed in to the luggage was broken off by the crew members handling the luggage. The crew on the plane was very nice, but as far as the rest of the experience, I would be very hesitant to ever use Iberia again.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Was late but that airport/storm fault. Flight was full but comfortable. Food quite nice. Unfortunate that I had a rather miserable attendant, others were much friendlier

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

Information on your arrival and departure airports

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