£48 Find Cheap Flights from Pennsylvania to the United Kingdom

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

Low seasonJanuary
High seasonSeptember
Cheapest flight£48
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 13% lower on average.
Flight from New York John F Kennedy Airport to London Heathrow Airport

Flights from Pennsylvania to the United Kingdom: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Pennsylvania to the United Kingdom 
Learn how KAYAK collects reviews and tips from users.
LisaFlew with British AirwaysPHL-LHRMay 2025
Make sure you have enough time in London if you have a transfer flight. I would recommend at least 2 hours.
RadicalFlew with American AirlinesPHL-LHRMay 2025
Don’t put everything in your gate check bags. Make sure you have clothes in your carry on
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 AirwaysPIT-LHRMar 2024
Go British Air. The nonstop flight is a huge bonus as there are very few such flights to Europe from Pittsburgh. Study the Underground and use it for transportation while there. After you’ve seen the most famous London sights, visit one of the smaller museums, like the John Soames Museum or the Leighton House Museum. Have a drink at the bar on the top floor of the National Portrait Gallery.

FAQs for booking flights from Pennsylvania to the United Kingdom

  • How does KAYAK find such low prices on flights from Pennsylvania 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 Pennsylvania to the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Pennsylvania to the United Kingdom 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 Pennsylvania 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 from Pennsylvania to the United Kingdom 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 Pennsylvania 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 from Pennsylvania to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in the United Kingdom?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United Kingdom is London Heathrow Airport (LHR), with an average flight price of £588.

  • What is the cheapest day to fly to the United Kingdom?

    Based on KAYAK data, the cheapest day to fly to the United Kingdom is Tuesday when return tickets can be as cheap as £520. On the other hand, the most expensive day to fly is Thursday, when return prices are £738 on average.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the morning, when round-trip flights cost £666 on average. Morning departures are around 21% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £988.

  • What is the cheapest flight to the United Kingdom?

    The cheapest ticket to the United Kingdom from Pennsylvania found in the last 72 hours was to London Heathrow Airport, at £615 return. The most popular route is Philadelphia (PHL) to London Heathrow Airport (LHR) and the cheapest return airline ticket found on this route in the last 72 hours was £615.

  • What is the cheapest month to fly from Pennsylvania to the United Kingdom?

    The cheapest month for flights from Pennsylvania to the United Kingdom is October, when tickets cost £504 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is £860 and £771 respectively.

  • How far in advance should I book a flight from Pennsylvania to the United Kingdom?

    To get a below-average price on the flight from Pennsylvania to the United Kingdom, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

  • How long is the flight to the United Kingdom?

    An average direct flight from Pennsylvania to the United Kingdom takes 9h 54m, covering a distance of 3486 miles. The shortest route is New York John F Kennedy Intl Airport (JFK) to Edinburgh (EDI) with an average flight time of 6h 35m.

  • What are the most popular destinations in the United Kingdom?

    Based on KAYAK flight searches, the most popular destination is London (98% of total searches to the United Kingdom). The next most popular destinations are Birmingham (0%) and Southampton (0%). Searches for flights to Belfast (0%), to Bristol (0%), and to Inverness (0%) are also popular.

Book cheap flights from Pennsylvania to the United Kingdom

Cheapest flights to the United Kingdom from Pennsylvania found in 2025

Recent return flight deals

1/8Fri
2 stopsBrussels Airlines
18h 05mJFK-LHR
13/8Wed
1 stopBrussels Airlines
11h 10mLHR-JFK
£73
1/8Fri
2 stopsBrussels Airlines
18h 05mJFK-LHR
13/8Wed
2 stopsBrussels Airlines
13h 10mLHR-JFK
£118
1/8Fri
1 stop
12h 50mJFK-LHR
13/8Wed
1 stop
11h 10mLHR-JFK
£191
27/8Wed
1 stopSWISS
13h 35mEWR-LHR
12/12Fri
1 stopSWISS
13h 25mLHR-EWR
£195
2/9Tue
1 stop
12h 20mIAD-LHR
10/9Wed
1 stop
12h 35mLHR-IAD
£196
20/8Wed
1 stopSWISS
11h 15mIAD-LHR
2/9Tue
1 stopSWISS
12h 30mLHR-IAD
£234
6/12Sat
1 stopScandinavian Airlines
15h 05mEWR-LHR
8/12Mon
1 stopScandinavian Airlines
11h 55mLHR-EWR
£237
23/10Thu
1 stopScandinavian Airlines
33h 45mEWR-LHR
26/10Sun
2 stopsScandinavian Airlines
35h 55mLHR-EWR
£239
19/11Wed
1 stopTAP AIR PORTUGAL
28h 45mEWR-LGW
24/11Mon
1 stopTAP AIR PORTUGAL
16h 10mLGW-EWR
£263
3/11Mon
1 stopTAP AIR PORTUGAL
27h 35mEWR-LGW
18/11Tue
1 stopTAP AIR PORTUGAL
16h 30mLGW-EWR
£267

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Recent one-way flight deals

7/7Mon
directVirgin Atlantic
6h 50mJFK-LHR
£48
17/7Thu
directNorse Atlantic UK
7h 00mJFK-LGW
£85
3/11Mon
1 stopBrussels Airlines
10h 40mJFK-LHR
£111
27/7Sun
1 stopIcelandair
31h 45mJFK-LHR
£114
5/10Sun
1 stopIcelandair
31h 45mJFK-LHR
£115
27/7Sun
1 stopTAP AIR PORTUGAL
23h 25mEWR-LHR
£120
27/7Sun
1 stopTAP AIR PORTUGAL
24h 20mEWR-LHR
£121
14/7Mon
1 stop
32h 05mJFK-STN
£142
14/7Mon
1 stop
32h 05mJFK-STN
£144
16/7Wed
1 stopBrussels Airlines
11h 40mIAD-LHR
£208

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Last minute flights from Pennsylvania to the United Kingdom

Last minute flight, train and bus deals

16/6Mon
multi-stop
26h 05mJFK-STN
26/6Thu
multi-stop
13h 20mSTN-JFK
£397
17/6Tue
multi-stop
17h 00mLGA-LGW
24/6Tue
multi-stop
27h 35mLGW-LGA
£400
17/6Tue
multi-stopDelta
11h 50mEWR-LHR
29/8Fri
multi-stopDelta
13h 45mLHR-EWR
£414
16/6Mon
directDelta
7h 30mJFK-LGW
20/8Wed
directDelta
8h 30mLGW-JFK
£416
16/6Mon
multi-stopSWISS
16h 20mJFK-LGW
30/6Mon
multi-stopSWISS
23h 15mLGW-JFK
£426
17/6Tue
directAmerican Airlines
7h 05mJFK-LGW
25/8Mon
directAmerican Airlines
8h 00mLGW-JFK
£432
17/6Tue
multi-stopBritish Airways
13h 10mEWR-LHR
27/8Wed
directBritish Airways
7h 50mLHR-EWR
£442
16/6Mon
multi-stopSWISS
16h 20mJFK-LGW
26/6Thu
multi-stopSWISS
23h 10mLGW-JFK
£442
17/6Tue
directBritish Airways
6h 55mJFK-LHR
27/6Fri
directBritish Airways
7h 49mLHR-JFK
£453
17/6Tue
directAmerican Airlines
7h 05mJFK-LGW
25/8Mon
directAmerican Airlines
8h 00mLGW-JFK
£509

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Everything you need to know for your flight to the United Kingdom

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.
First Class flights to the United Kingdom
Business Class flights to the United Kingdomfrom £2,990
Prem Econ Class flights to the United Kingdomfrom £1,584
Economy class flights to the United Kingdomfrom £453

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