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Find cheap flights from London to Pennsylvania from £174

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Pennsylvania departing on 20/5. 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
Sat 1/6
Sat 8/6

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Best Pennsylvania Flight Deals

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

Philadelphia
Philadelphia1 stop£375
Pittsburgh
Pittsburgh1 stop£420
Harrisburg
Harrisburg2 stops£555
Allentown
Allentown1 stop£547
Scranton
Scranton1 stop£571

Good to know - Cheap tickets from London to Pennsylvania

Low season

January

High season

July

Cheapest flight

£174
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from London Gatwick Airport to Philadelphia

FAQs - booking Pennsylvania flights

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

    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 Pennsylvania.

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

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

    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 Pennsylvania 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 Pennsylvania?

    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 Pennsylvania from London 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 London to Pennsylvania

  • Morning departure is around 3% 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 London to Pennsylvania

 
Need help choosing which airline to fly with from London to Pennsylvania? 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.
7.8
Cathay PacificOverall score based on 1119 reviews
8.0Boarding
7.8Comfort
8.2Crew
8.0Entertainment
7.5Food
Airline reviews

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

10.0 ExcellentAnonymous, Apr 2024HKG - JFK
Read more about Cathay Pacific reviews

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The boarding experience was as expected and went well. The plane's economy seating plan is not designed for a positive customer experience but rather for company profit. When the passenger in front of me reclined, the distance from the screen to my face was the span of my hand (thumb tip to pinky fingertip). There is no such thing as personal space in this setting. This results in the domino effect, for when I recline the person in back of me reclines and so it goes. This is not to say that reclining is the answer as the experience is not increased, but simply managed.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Very comfortable flights. Not so many new releases in terms of films.

I felt thirsty and asked the flight attendent for water, but no one came for more than half an hour.

Everything went smooth. All flights were on time No changing gates, . No changing flights . It was like a completely different airlines tha n the last time I used Cathay Pacific . The last flight, 2 months ago, I had before this one was from Philippines also . I got changed in Manila and was told it only added 2 hours onto my flight . My 20 hour return trip ended up being 30 hours return with a 10.0 hour layover in New York with no seats anywhere . Everyone was sleeping or sitting on the floor . Unlike the hotel I was given in Manila to wait for this flight home . I never thought I would use Cathay Pacific again . But I did and this time you were great! I should have complained about the flight and layover from Hell a couple months ago. Consider that I am complaining about that august/23 flight now . Thank you got the great flying experience on my way home from philippines .

Average flight for which I paid too much for on a last minute purchase.

Would have liked working outlets on the flight. The first meal was very bleh, the second meal was a lot better so overall okay meals

In flight entertainment system including wifi were down and passengers got tortured for the 16 hours flight without any of these. Food was spoiled as well for the first meal provided but second meal was Ok. Overall a horrible experience which was not at all expected for such a long haul flight which was expected to be THE most memorable part of my planned trip for family.

On the flight back the seats where very uncomfortable, they where so bad that my back started to hurt after the first 2 hours. I can sit in a wooden chair for 2 hours. But these where just horrible, it just shows how cheap the airline has become. And the cabin was heated all those people in a heated cabin during a night flight. It was clear the climate control was not working. To top that off you are not even offered a glass of water, these people are animals.

We purchased a Go First Pass for 10 Euros each so we could board first, but everyone was able to board at the same time so we wasted 20 Euros. The flight left ab out 15 minutes late and was not allowed to land at Healthrow so we had to circle Heathrow for about 45 minutes. This caused us to almost miss our flight from Heathrow to Atlanta.

Severely delayed with no notice. Could have arrived at the airport hours later had we been informed of the delay

Once the boarding sign went on and all passengers gathered in line, we were left waiting standing up for almost an hour because there was a delay.

It would be nice to have vegan options for meals. The entertainment was not working on the the way to Austria. It was only available near the end of flight to Canada. The service was excellent.

Flight was delayed by approx 1 hour. The boarding process and the flight itself were very good, slightly tight squeeze for my legs but overall happy.

The business class layout on this plane is tightly packed and atrocious with no sense of privacy.

Flight was meant to leave at 8:30pm but there was a 2 hour delay 😞

Airmalta does not include meals in their flights and neither offers entertainment.

Pros: "The crew was amazing and took measures to make the flight Covid safe"
Cons: "The food was not the best and Twistees weren't available. Also the seats felt narrow"

The trip itself was good. I have given only good as rating, because my first flight has been cancelled by a different airline and that caused disruption in my trip. I spent over ten hours in Luton airport and that caused me high tiredness, sickness, because of the very early initial trip. easyJet staff has been professional and friendly.

Very pleasant crew, working hard on a full plane. Delay by a broken seat. However crew made back 60% of the delay.

Delayed and then further delayed with no announcement made so that all the passengers (who were standing in the jetty) could hear. We stood there for well over 20 minutes. We were further delayed through weather but no one explained that to us until the pilot made an announcement when finally on board

easyJet need to ensure that whether pre-booking seats or not children aren’t split from their parents the crew spent the majority of boarding asking passengers to move to accommodate two families. Surely the system identifies minors on a booking !!!!! It was all very frustrating to watch and caused delays which I’m sure cost easyJet more in the long run rather that automatically allocating families with minors seats together automatically.

As you would expect from a budget airline Left and arrived on time, no frills, not even a glass of water offered But you get what you pay for

I had an emergency escape seat. The attendant gave the extrA briefing to my side of the aisle but didnt direct it at all to the other where my wife was sitting

Boarding great. Didn’t eat or drink so can not comment.

Total jobs worths over carry on bags, charged £96 extra for bags that were clearly hand luggage

3 hours delayed Don’t understand why when you have paid for ‘speedy boarding’ they call you forward to then make you stand fir another 20 minutes in a confined space before boarding the plane.

The pilot did everything possible to make up the 35 minute delay. His communications were honest, prompt and positive throughout.

I got denied boarding bevause they said they "ran out of seats on a plane"

Speakers were blaring. It's like being in a Moroccan market and you keep getting shouted at with what's for sale

What can you say Ryanair get you there,no frills Not so cheap anymore ..... but what is now days! Would use again as always. Good flight times for us.

Very unpleasant staff, disgusting service, ignoring requests, refusal to help

Late again rude staff at gate bullying passengers made us stand in the cold 3degrees for 40 mins before they let us board

The usual average Ryanair flight, but we landed 20 min before due time, which was very good.

Enjoyed our flight with Ryanair to Arrecife. Flight boarded pretty much on time, crew were welcoming and very good. Generally good for a frequent low cost flight, Seats could however have been more comfortable.

I wouldn't like to fly with them anymore, I don't like their service, you can hardly take carry-on luggage because they charge you for everything, you can't ask for a glass of water, and the flight attendant tells you that they don't have any, that you have to Paying 3 euros for a bottle of water horrible, I don't recommend it, and they don't have anything low cost, because the plane ticket may not be expensive but what they charge you later for the rest, the flight becomes more expensive, it's the only airline that I don't like it so far, and I traveled a lot.

Staff were friendly and flight was on time. Free drink and snacks would have been appreciated.

The boarding process was fast and easy , but the airport sign was not up on the board, so it was hard to know the correct gate , on the airplane there was NO Snacks and NO water …. Everything needs to be purchase …. It’s not worthy for the price we paid !

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

The crew was very attentive and kept busy serving a variety of treats!

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

All was good. The headphones they supply are of poor quality. The food is good but too much dairy.

Seating space was crowded and I am a very small woman.

Book cheap flights from London to Pennsylvania

Cheapest flights to Pennsylvania from London found in 2024

Recent return flight deals

17/5Fri
1 stop
19h 38mLGW-PHL
21/5Tue
1 stop
22h 29mPHL-LGW
£375
16/5Thu
1 stop
19h 38mLGW-PHL
9/7Tue
1 stop
19h 40mPHL-LGW
£402
10/9Tue
1 stopFinnair
20h 35mLHR-PHL
24/9Tue
1 stopFinnair
12h 18mPHL-LHR
£430
10/9Tue
directFinnair
8h 00mLHR-PHL
24/9Tue
1 stopFinnair
15h 15mPHL-LHR
£431
16/9Mon
1 stopBritish Airways
12h 55mLHR-PHL
23/9Mon
directBritish Airways
7h 10mPHL-LHR
£440
16/9Mon
directBritish Airways
7h 55mLHR-PHL
23/9Mon
directBritish Airways
7h 10mPHL-LHR
£458
14/5Tue
1 stopLufthansa
27h 15mLGW-PHL
21/5Tue
1 stopLufthansa
18h 25mPHL-LGW
£542
14/5Tue
1 stopLufthansa
13h 10mLCY-PHL
21/5Tue
1 stopLufthansa
17h 50mPHL-LCY
£556
27/5Mon
2 stopsSWISS
24h 55mLHR-PHL
3/6Mon
2 stopsSWISS
12h 50mPHL-LHR
£569
11/6Tue
2 stopsSWISS
26h 15mLGW-PHL
18/6Tue
2 stopsSWISS
19h 15mPHL-LGW
£610

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Recent one-way flight deals

20/5Mon
1 stop
27h 33mLGW-PHL
£174
14/5Tue
1 stop
22h 50mLGW-PHL
£176
11/5Sat
1 stopBritish Airways
24h 05mLHR-PHL
£401
11/5Sat
1 stopBritish Airways
24h 05mLHR-PHL
£402
10/6Mon
1 stopLufthansa
28h 00mLCY-PHL
£503
8/5Wed
directFinnair
7h 45mLHR-PHL
£503
8/5Wed
1 stopFinnair
12h 18mLHR-PHL
£508
11/6Tue
1 stopLufthansa
13h 10mLCY-PHL
£511
17/9Tue
2 stopsSWISS
27h 05mLCY-PHL
£606
24/6Mon
2 stopsSWISS
18h 01mLCY-PIT
£855

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Last minute flights from London to Pennsylvania

Last minute flight, train and bus deals

6/5Mon
multi-stopAmerican Airlines
13h 25mLHR-PHL
13/5Mon
multi-stopAmerican Airlines
11h 39mPHL-LHR
£436
6/5Mon
directAmerican Airlines
7h 45mLHR-PHL
13/5Mon
multi-stopAmerican Airlines
32h 05mPHL-LHR
£448
6/5Mon
multi-stopFinnair
14h 49mLHR-PIT
8/5Wed
multi-stopFinnair
23h 10mPIT-LHR
£519
6/5Mon
multi-stopFinnair
26h 12mLHR-PIT
13/5Mon
multi-stopFinnair
10h 58mPIT-LHR
£523
6/5Mon
multi-stopSWISS
31h 51mLGW-PHL
15/5Wed
multi-stopSWISS
20h 40mPHL-LGW
£812
2/5Thu
multi-stopSWISS
31h 51mLGW-PHL
9/5Thu
multi-stopSWISS
20h 20mPHL-LGW
£844
3/5Fri
multi-stopBritish Airways
14h 15mLCY-PHL
6/5Mon
multi-stopBritish Airways
10h 40mPHL-LCY
£865
2/5Thu
multi-stopLufthansa
11h 45mLCY-PHL
9/5Thu
multi-stopLufthansa
20h 00mPHL-LCY
£872
6/5Mon
directBritish Airways
7h 54mLHR-PIT
14/5Tue
multi-stopBritish Airways
9h 57mPIT-LHR
£1,047
6/5Mon
multi-stopLufthansa
28h 00mLCY-PHL
15/5Wed
multi-stopLufthansa
17h 50mPHL-LCY
£1,191

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