Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Philadelphia to the United Kingdom from £144

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 the United Kingdom departing on 11/9. 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
0 bags
Thu 6/6
Thu 13/6

Search hundreds of travel sites at once for deals on flights to the United Kingdom

In the last 7 days, travellers have searched 43,707,506 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

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

Free to useThere are no hidden charges or fees.

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

Best United Kingdom Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

London
London1 stop£389
Manchester
Manchester1 stop£543
Edinburgh
Edinburgh1 stop£524
Birmingham
Birmingham2 stops£693
Bristol
Bristol2 stops£700
Aberdeen
Aberdeen1 stop£530
Liverpool
Liverpool2 stops£763
Leeds
Leeds2 stops£786
Inverness
Inverness1 stop£450
Cardiff
Cardiff2 stops£695

Good to know - Cheap tickets from Philadelphia to the United Kingdom

Low season

February

High season

June

Cheapest flight

£144
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (32% more expensive on average)
Flight from Philadelphia to London Gatwick Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Philadelphia to the United Kingdom?

    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 the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United Kingdom 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 the United Kingdom?

    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 the United Kingdom 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 the United Kingdom?

    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 the United Kingdom from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Philadelphia to the United Kingdom

  • Looking for a cheap flight from Philadelphia to the United Kingdom? 25% of our users found tickets from Philadelphia to the United Kingdom for the following prices or less: London £362 one-way - £559 round-trip
  • Morning departure is around 23% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Philadelphia to the United Kingdom

 
Need help choosing which airline to fly with from Philadelphia to the United Kingdom? 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.
7.7
FinnairOverall score based on 1379 reviews
7.8Boarding
7.6Comfort
6.9Food
7.0Entertainment
8.2Crew
Airline reviews

All good- I love BA and the professionalism of the crew and pilots.

8.0 ExcellentAnonymous, Apr 2024JFK - LHR
Read more about Finnair reviews

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Had a nice flight to London on BA will fly with them again in the future

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Helpful steward. Allowed me to move to some empty seats and I was able to get some sleep. He also had milk for my tea. Americans don’t realise that cream or half and half ruin tea.

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Short flight so not much to rate. Surprised I had to pay for a soda.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Very good need to offer better choice of food for business

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

The transatlantic flight was wonderful. The regional reminded me of jet blue. Crazy and packed. Not enough overhead space and tough on elderly.

I paid for premium economy but BA oversold the seats and we ended up being downgraded. Not acceptable given how much we paid for the flight. We were also separated to 2 different areas so not only did we not get the service we paid for, we didn’t even get to sit together. I’m not happy at this treatment by BA because of corporate greed.

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

Flight was an Iberia Flight on Level but seemed to be outsourced to a 3rd airline - Wamos. Seating pattern was different than when booked, we waited on the JETBRIDGE for 45 minutes to board, food was terrible. Movie options were limited to about 20 and very old, TV shows was limited to about 15 and equally as old. Staff was fine but definitely the "b-team". Landed about 60 minutes early and waited on the runway for 45 minutes - despite that Logan Airport in Boston recently added new gates. Mediocre experience at best.

I liked the friendly crew and desk staff, all very helpful. I was surprised and a little annoyed on my outbound flight from LGW to MCO as I had prepaid and booked my seat, which was all correct at check in on my boarding pass. when I got on the plane someone was in my seat ! I was moved to another seat. The food choice is quite limited and I feel that an option of a muffin for breakfast snack would be welcomed, not everyone wants egg or bacon wrap. The choice of entertainment is good, plenty to keep you busy on a long haul flight. I liked the option offered to have the cabin bag checked into the hold, it saved me as an older, lone traveller lifting my case into the overhead locker or finding there was no space.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

As with every airline the seats are not built for tall people.

Flight was delayed by well over an hour. Communication was terrible.

My wife and I paid for seat selection to be together. My wife and I were on separate rows and the excuse they gave was they changed the plane. Also, I have celiac and asked for a gluten free meal in the ticket profile which they did not have.

I’m hoping for WiFi included. Everything else was very good

Pros: they tried to accommodate bc they forgot my gluten free meal Negatives: The flight was freeeeeezing Iberia didn’t communicate my gluten free meal

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Very cramped seats in economy, difficult to get comfortable with your legs and feet and back. The seat width is ok but I’m average size. Food is HORRIBLE. Crew is friendly. Delays and very tight connections made it tough for navigating. We would have missed our connecting flight if it wasn’t delayed too. The terminal transit was slow and normally every 10 minutes before 8pm, after 8 pm is every 30 minutes!!!!! No free wine or drinks!! Below average attitude.

Leg room was better than expected. Lavatory’s were easy to access.crew was grea!

Horrible seat allocation. Boarding was slow. Food was average and so was entertainment. The TV terminal didn't work and so had to use remote.

Book cheap flights from Philadelphia to the United Kingdom

Cheapest flights to the United Kingdom from Philadelphia found in 2024

Recent return flight deals

11/9Wed
1 stop
14h 15mPHL-LGW
16/9Mon
2 stops
25h 47mLGW-PHL
£389
25/9Wed
1 stopBritish Airways
10h 00mPHL-INV
2/10Wed
1 stopBritish Airways
13h 15mINV-PHL
£450
10/8Sat
1 stopAer Lingus
12h 15mPHL-LHR
19/8Mon
1 stopAer Lingus
10h 45mLHR-PHL
£526
3/10Thu
1 stopAer Lingus
11h 00mPHL-LHR
7/10Mon
1 stopAer Lingus
12h 10mLHR-PHL
£528
9/10Wed
directIberia
7h 00mPHL-LHR
17/10Thu
1 stopIberia
12h 35mLHR-PHL
£555
6/10Sun
directIberia
7h 05mPHL-LHR
14/10Mon
1 stopIberia
22h 40mLHR-PHL
£563
12/8Mon
directFinnair
6h 55mPHL-LHR
30/8Fri
1 stopFinnair
14h 15mLHR-PHL
£579
10/9Tue
directFinnair
7h 05mPHL-LHR
26/11Tue
1 stopFinnair
26h 20mLHR-PHL
£583
17/8Sat
1 stopVirgin Atlantic
33h 13mPHL-MAN
31/8Sat
1 stopVirgin Atlantic
14h 08mMAN-PHL
£628
7/6Fri
1 stopVirgin Atlantic
30h 47mPHL-MAN
20/6Thu
1 stopVirgin Atlantic
16h 20mMAN-PHL
£667

Search by stops

Search by airline

Search by price

Recent one-way flight deals

11/9Wed
1 stop
14h 15mPHL-LGW
£144
26/6Wed
1 stop
16h 02mPHL-LGW
£150
12/8Mon
1 stopAer Lingus
18h 10mPHL-EDI
£377
18/8Sun
1 stopAer Lingus
14h 55mPHL-GLA
£377
21/8Wed
1 stopBritish Airways
11h 35mPHL-MAN
£473
12/6Wed
1 stopBritish Airways
10h 50mPHL-EDI
£490
30/7Tue
directIberia
7h 15mPHL-LHR
£630
27/9Fri
directFinnair
7h 05mPHL-LHR
£649
6/8Tue
directIberia
6h 55mPHL-LHR
£650
6/8Tue
directFinnair
6h 55mPHL-LHR
£684

Search by stops

Search by airline

Search by price

Last minute flights from Philadelphia to the United Kingdom

Last minute flight, train and bus deals

12/5Sun
multi-stop
9h 20mPHL-LHR
24/5Fri
multi-stop
13h 38mLHR-PHL
£608
12/5Sun
directFinnair
7h 05mPHL-LHR
24/5Fri
directFinnair
7h 45mLHR-PHL
£615
11/5Sat
multi-stop
33h 06mPHL-LGW
18/5Sat
multi-stop
32h 43mLGW-PHL
£617
10/5Fri
directBritish Airways
7h 05mPHL-LHR
24/5Fri
directBritish Airways
7h 45mLHR-PHL
£655
8/5Wed
multi-stopAer Lingus
11h 35mPHL-LHR
15/5Wed
multi-stopAer Lingus
13h 25mLHR-PHL
£684
8/5Wed
multi-stopAer Lingus
11h 35mPHL-LHR
13/5Mon
multi-stopAer Lingus
14h 20mLHR-PHL
£692
11/5Sat
multi-stopBritish Airways
10h 00mPHL-EDI
18/5Sat
multi-stopBritish Airways
21h 30mEDI-PHL
£801
11/5Sat
multi-stopVirgin Atlantic
14h 35mPHL-EDI
18/5Sat
multi-stopVirgin Atlantic
17h 29mEDI-PHL
£810
11/5Sat
multi-stopIberia
28h 10mPHL-MAN
17/5Fri
multi-stopIberia
34h 53mMAN-PHL
£1,027
8/5Wed
directIberia
7h 05mPHL-LHR
15/5Wed
multi-stopIberia
11h 55mLHR-PHL
£1,217

Search by stops

Search by airline

Search by price

Philadelphia - United Kingdom Flights

Departure:

Philadelphia (PHL)United States

Return flight deals:

United Kingdom - Philadelphia

Cabin classes:

£2,929
£1,992
£519