£158 Find Cheap Flights from London to Pennsylvania

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 29/4. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Pennsylvania.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Pennsylvania.
In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

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Best Pennsylvania Flight Deals from London

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

Philadelphia
Philadelphia2 stops£421
Pittsburgh
Pittsburgh1 stop£432
Harrisburg
Harrisburg2 stops£533
State College
State College1 stop£543
Scranton
Scranton1 stop£604
Allentown
Allentown2 stops£503

Good to know - Cheap tickets from London to Pennsylvania

Low season

February

High season

December

Cheapest flight

£158
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (38% more expensive on average)
Flight from London Gatwick Airport to New York John F Kennedy Airport

FAQs - booking Pennsylvania flights

  • How long is the flight to Pennsylvania from London?

    Flights to Pittsburgh7h 47m
    Flights to Philadelphia7h 33m
  • What is the cheapest flight to Pennsylvania from London?

    The cheapest ticket to Pennsylvania from London found in the last 72 hours was £158 one-way, and £270 round-trip. The most popular route is from London to Philadelphia, and the cheapest round-trip airline ticket found on this route in the last 72 hours was £235.

  • Which airlines fly from London to Pennsylvania?

    American Airlines flies most frequently to Philadelphia from London. In general, Finnair, British Airways and Iberia fly the most to Pennsylvania.

  • 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 from London to Pennsylvania is likely to change within 7 days, so travellers 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 from London to Pennsylvania with an airline and back 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 from London to Pennsylvania 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

  • Book at least 1 week before departure in order to get a below-average price for flights from London to Pennsylvania.
  • High season is considered to be July and August. The cheapest month to fly from London to Pennsylvania is February.
  • Morning departure is around 72% more expensive 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

 
See real verified KAYAK customer reviews for airlines flying from London to Pennsylvania. 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 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.
7.7
FinnairOverall score based on 1283 reviews
7.5Comfort
6.7Food
8.2Crew
7.7Boarding
6.9Entertainment
Airline reviews

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

8.0 ExcellentAnonymous, Nov 2024HEL - ICN
Read more Finnair reviews

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.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

The entertainment system did not work. And we waited 45 minutes in our seats after we landed before we got to the gate

It was a pleasure definitely going with Iberia on my future travels

Our connecting flight was cancelled and it took us 15 hours to reach our destination.

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

Flight was on time Crew was not. very friendly I paid for premium class and It wasn’t too much different from coach

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

Great thanks - a whole row to myself. Good food but film selection not great.

Overall flight was as expected. It would have been better with a couple options for snack instead of only one item and if there was a TV or music as option. But overall satisfied.

The crew were a bit short and not as warm although they did take care of small details that I requested.

American switched my flight to a 5 hour layover then cancelled my whole reservation with no notice and refused refund. Won’t fly with them again.

It is okay. Flight was on time to start and early to land

WiFi didn’t work for me. as headphones didn’t work either.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

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

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Golf Bags never made it on the flight. Very expensive golf bag and. Clubs,shoes, clothing. Will file a claim against Aer Lingus

Was very unhappy with the entire process, from check in to boarding to the comfort of the flight. Did not enjoy the flight on Level.

Overall a great. However, the seating is way too narrow, for guys with any shoulder width. Luckily the crew moved the guy next to me, or it would have been miserable.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

The flight was decent. I purchased my flight through Iberia, traveling with my elderly mother with mobility issues. I try to pay for luggage and seats online prior but Iberia website directs me to AA website. AA airlines website does not recognize the record locator. My mother and I are separated and each get a middle seat. She is seated the furthest away from a bathroom. I had to sit behind her to see her wave at me to use the bathroom. Lights out on the flight and I could not see her wave and she is not tech savvy to push an attendant button even though I showed her how. The attention to this detail puts AA at the bottom of my list when traveling with my elderly mother. Bad execution and handling when servicing those with extra needs due to mobility. I could not get her to the bathroom because she’s slow and she had to wait for me to get up from my middle seat then move her out of her middle seat. She had an accident which required that I hel her clean up before taking her back to her seat.

The flight staff was excellent, one of the best I've had. Food and wine was very good and seats very comfortable. Luggage came out pretty quickly too considering the number of passengers. Also, excellent internet. The only thing that could have been improved on was the choice of movies -- kind of limited and not great selections.

The plane was not well maintained. The entertainment system didn’t work properly, eg moving map. Many of the seat controls did not work. Cabin temperature fluctuated considerably during the flight. The seat allocated was poor, it was noisy and offered no privacy. The perfume in the toilet triggered severe allergies. Crew was very goid.

Seats are too tight. Small space for long flights very inconvenient.

The flight was delayed over 3 hours and at the gate, we waited for an hour to start boarding. The gate lack of communication with the passengers was atrocious and when asked they even said they didn't work there and were just standing in for someone else so they couldn't give us an information about the flight status. The crew did not offer blankets, pillows nor headphones.

I originally chose two aisle seats for my daughter and myself in the same row. We got seated in the middle, three rows apart. Both of the men sitting in front of us reclined their seats fully leaving us NO room. A totally uncomfortable flight for eleven hours.

The seat was very uncomfortable. It helped to use the foot rest. Could not sleep because of the seat.

The seats are incredibly uncomfortable. My luggage didn't make it on the flight from London to Nashville.

The plane itself is old and way overcrowded. The crew do a great job of trying to mitigate. It is just uncomfortable for over 8 hours, bearable, but barely. Boarding, and the baggage game, is ludicrous. Why charge extra to check bags when there is not enough room for everyone to "carry-on" and checking is needed? I do not think these issues would be different with other airlines, I believe it is the attitude that squeezes every penny out of each traveler.

Expected a lot better service paying for a business class seat. Seemed to be short on staff and did not get the service I expected.

I flew Club World and was SHOCKED at how totally absent the crew were for the duration of the flight. So much so that we received no drink service other than the post-departure cocktail and that was it. Wasn't even offered tea/coffee and the in-flight attention was so bad that literally minutes before landing the one crew member for our row was scrambling to pick up left-behind water bottles, glassware, trash. And the rest of the crew had already stowed all carts, he was cramming the trash into the lavatory trash can and was stashing the glassware frantically in the galley as we were on final approach. He was so scrambled he left two overhead lockers wide open (that he'd opened) for landing. Unbelievable!

The flight was several times changed. That was inconvenient, to sah the least.

They lost my special meal request and tried to tell me I didn't request it. I had the proof. Then they tried to get me to eat food I can't eat. No apologies

British airways keeps canceling our flights. I won’t be booking any future flights with them

I could not charge my phone the entire night or read my book, as the whole middle isle was without power.

British Airways did a great job and the entire crew was punctual and polite; dignified and delightful!

Book cheap flights from London to Pennsylvania

Cheapest flights to Pennsylvania from London found in 2024 and 2025

Recent return flight deals

 
These are the cheapest return flights from London to Pennsylvania found on KAYAK in the last 72 hours.
28/4Mon
1 stop
29h 35mLGW-JFK
12/5Mon
direct
7h 00mJFK-LGW
£270
28/4Mon
1 stop
29h 35mLGW-JFK
5/5Mon
direct
7h 00mJFK-LGW
£293
4/3Tue
1 stopFinnair
14h 10mLHR-JFK
11/3Tue
directFinnair
6h 55mJFK-LHR
£348
5/5Mon
1 stopFinnair
16h 35mLHR-JFK
12/5Mon
directFinnair
7h 20mJFK-LHR
£355
7/5Wed
directAmerican Airlines
8h 00mLGW-JFK
14/5Wed
directAmerican Airlines
7h 05mJFK-LGW
£364
15/1Wed
1 stopAmerican Airlines
13h 45mLHR-JFK
29/1Wed
directAmerican Airlines
6h 50mJFK-LHR
£374
15/1Wed
directBritish Airways
8h 10mLHR-EWR
22/1Wed
directBritish Airways
6h 50mEWR-LHR
£379
4/2Tue
directBritish Airways
8h 00mLHR-JFK
18/2Tue
directBritish Airways
6h 55mJFK-LHR
£383
23/4Wed
1 stopIberia
13h 05mLGW-JFK
29/4Tue
directIberia
7h 05mJFK-LGW
£410
17/3Mon
1 stopIberia
13h 20mLGW-JFK
20/3Thu
1 stopIberia
16h 50mJFK-LGW
£424

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Pennsylvania found on KAYAK in the last 72 hours.
29/4Tue
1 stopVueling
15h 45mLGW-JFK
£158
28/4Mon
1 stopVueling
29h 35mLGW-JFK
£159
12/5Mon
directFinnair
8h 00mLGW-JFK
£335
15/1Wed
1 stopAer Lingus
14h 39mLHR-JFK
£353
14/1Tue
1 stopAer Lingus
11h 20mLHR-EWR
£353
25/3Tue
directFinnair
8h 00mLHR-JFK
£364
25/3Tue
1 stopBritish Airways
13h 30mLHR-LGA
£373
20/1Mon
directBritish Airways
8h 10mLHR-EWR
£382
18/1Sat
1 stopIberia
12h 35mLHR-JFK
£388
8/1Wed
directIberia
8h 10mLHR-JFK
£391

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Last minute flights from London to Pennsylvania

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Pennsylvania that are departing in the next 10 days.
27/12Fri
multi-stopAir Canada
11h 33mLHR-LGA
13/2Thu
multi-stopAir Canada
10h 35mLGA-LHR
£442
27/12Fri
multi-stopAir Canada
11h 33mLHR-LGA
9/1Thu
multi-stopAir Canada
10h 05mLGA-LHR
£446
27/12Fri
multi-stopFinnair
13h 02mLHR-JFK
12/1Sun
multi-stopFinnair
13h 21mJFK-LHR
£508
27/12Fri
multi-stopFinnair
13h 02mLHR-JFK
12/1Sun
directFinnair
6h 55mJFK-LHR
£515
26/12Thu
multi-stopIberia
24h 35mLHR-JFK
25/1Sat
directIberia
6h 50mJFK-LHR
£554
27/12Fri
multi-stopIberia
15h 40mLHR-JFK
9/1Thu
directIberia
6h 55mJFK-LHR
£629
24/12Tue
multi-stopAer Lingus
19h 23mLHR-JFK
31/12Tue
multi-stopAer Lingus
11h 05mJFK-LHR
£746
26/12Thu
multi-stopAer Lingus
12h 49mLCY-JFK
9/1Thu
multi-stopAer Lingus
10h 35mJFK-LCY
£801
26/12Thu
directBritish Airways
8h 15mLHR-IAD
23/1Thu
directBritish Airways
7h 10mIAD-LHR
£1,022
25/12Wed
multi-stopBritish Airways
15h 07mLHR-LGA
1/1Wed
multi-stopBritish Airways
14h 24mLGA-LHR
£1,040

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

Cabin class types available on flights to Pennsylvania

Cabin classes available on flights to Pennsylvania. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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