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Cheap flights from London to Pennsylvania from £347

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — PHL
27 Jul — 3 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Pennsylvania

Enter your travel dates to find the best prices.

Cheapest flights from London to Pennsylvania
Explore the most affordable flight options available from London to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 June 2026.

Sun 4/1013:05
LGW
-
JFK
Nonstop7h 50m
Multiple Airlines
Mon 12/1023:10
JFK
-
LGW
1 stop10h 30m
Multiple Airlines
Deal found 26/6£466
Mon 28/911:20
LHR
-
JFK
1 stop13h 45m
TAP AIR PORTUGAL
Sun 4/1022:05
JFK
-
LHR
1 stop15h 45m
TAP AIR PORTUGAL
Deal found 27/6£466
Thu 19/1110:40
LGW
-
JFK
1 stop14h 25m
TAP AIR PORTUGAL
Mon 30/1122:00
JFK
-
LGW
2 stops17h 35m
TAP AIR PORTUGAL
Deal found 26/6£467
Mon 27/706:30
STN
-
JFK
2 stops20h 35m
Multiple Airlines
Mon 3/823:10
JFK
-
STN
2 stops15h 15m
Multiple Airlines
Deal found 27/6£467
Mon 6/709:50
LHR
-
JFK
1 stop12h 05m
Aer Lingus
Thu 16/718:25
JFK
-
LHR
1 stop18h 55m
Aer Lingus
Deal found 25/6£467
Fri 2/1007:30
LGW
-
LGA
2 stops17h 06m
Multiple Airlines
Tue 6/1016:00
LGA
-
LGW
2 stops15h 40m
Multiple Airlines
Deal found 26/6£467
Thu 9/711:05
LGW
-
JFK
2 stops16h 00m
Multiple Airlines
Mon 20/723:10
JFK
-
LGW
2 stops12h 45m
Multiple Airlines
Deal found 25/6£468
Fri 4/908:30
STN
-
JFK
1 stop12h 27m
Multiple Airlines
Tue 8/921:30
JFK
-
STN
1 stop15h 05m
Multiple Airlines
Deal found 26/6£468
Sat 29/806:40
LHR
-
JFK
2 stops14h 00m
Scandinavian Airlines
Fri 4/917:10
JFK
-
LHR
1 stop11h 25m
Scandinavian Airlines
Deal found 25/6£468
Tue 8/916:10
LTN
-
JFK
1 stop11h 15m
Multiple Airlines
Tue 15/923:55
JFK
-
LTN
1 stop17h 15m
Multiple Airlines
Deal found 25/6£468
Fri 4/913:05
LGW
-
JFK
Nonstop7h 50m
Multiple Airlines
Sun 6/923:10
JFK
-
LGW
1 stop10h 30m
Multiple Airlines
Deal found 26/6£469
Sat 29/806:40
LHR
-
JFK
2 stops14h 00m
Scandinavian Airlines
Mon 7/917:10
JFK
-
LHR
1 stop11h 25m
Scandinavian Airlines
Deal found 26/6£469

Find flight deals from London to Pennsylvania

Keep the following information in mind while searching for London to Pennsylvania flight deals. Data was last updated 27 June 2026.

Round-trip from

£466

One-way from

£347

Popular in

July

Cheapest in

September

Average price

£717

Good round-trip deal

£609 or less

Good one-way deal

£501 or less
Icelandair
  • Icelandair
  • 4/10-8/10
  • 1 total stop
  • 18h 20m total
  • London to Pennsylvania
Search Deals
SWISS
  • SWISS
  • 15/9
  • 1 total stop
  • 12h 20m total
  • London to Pennsylvania
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to Pennsylvania.
Search Deals
Price to beat on a one-way flight from London (LON) to Pennsylvania.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Pennsylvania that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 June 2026.
Use the filters below to find and compare flights from London to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Wed 30/9

10:35-20:05

1 stop14h 30m

New York John F Kennedy Intl

Mon 5/10

22:05-11:20

2 stops32h 15m

£487

LondonNew York

LGW - LGA

LGWLGA

London Gatwick

Mon 21/9

09:40-16:55

1 stop12h 15m

New York LaGuardia

Sat 26/9

09:55-07:55

1 stop17h 00m

£501

LondonNew York

LGW - LGA

LGWLGA

London Gatwick

Fri 18/9

12:40-19:25

1 stop11h 45m

New York LaGuardia

Wed 14/10

09:55-10:45

1 stop19h 50m

£501

LondonNew York

LGW - LGA

LGWLGA

London Gatwick

Wed 23/9

09:40-16:55

1 stop12h 15m

New York LaGuardia

Sat 26/9

09:55-07:55

1 stop17h 00m

£504

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Sun 20/9

06:30-12:32

1 stop11h 02m

New York John F Kennedy Intl

Mon 28/9

08:15-20:10

Nonstop6h 55m

£506

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Mon 23/11

07:30-19:05

1 stop16h 35m

New York John F Kennedy Intl

Mon 30/11

21:50-09:45

Nonstop6h 55m

£507

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Sun 22/11

20:00-22:55

Nonstop7h 55m

New York John F Kennedy Intl

Sat 28/11

18:05-06:20

Nonstop7h 15m

£509

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Sat 28/11

10:10-13:25

Nonstop8h 15m

New York John F Kennedy Intl

Sat 5/12

18:05-06:20

Nonstop7h 15m

£510

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Fri 30/10

16:10-20:40

Nonstop8h 30m

New York John F Kennedy Intl

Fri 6/11

08:10-20:00

Nonstop6h 50m

£510

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Mon 21/9

07:05-17:00

2 stops14h 55m

New York John F Kennedy Intl

Mon 28/9

18:55-16:25

2 stops16h 30m

£510

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from London to Pennsylvania?

Currently, February is the cheapest month in which you can book a flight from London to Pennsylvania (average of £273). Flying from London to Pennsylvania in May is currently the most expensive (average of £1,354). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to PA?

Find hourly flight availability from London to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 June 2026.

When flying from London to Pennsylvania, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London to Pennsylvania

Explore weekly flight availability from London to Pennsylvania. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 27 June 2026.

The most flights from LON to USPA are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost for a return flight from London to Pennsylvania?

How far ahead should I book a flight from London to Pennsylvania?

The best time to book flights from London to Pennsylvania is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pennsylvania. Reviews last updated 27 June 2026.
See what other customers who have flown with Finnair,Aer Lingus, andAmerican Airlines from London to Pennsylvania have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,415 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Aer Lingus
7.3
Good
1,628 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
American Airlines
7.1
Good
11,777 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
JetBlue
7.1
Good
3,014 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
8,072 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

Comfort

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

Find useful and relevant information for your journey from London to Pennsylvania. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Pennsylvania?

    TAP AIR PORTUGAL, Air Transat, and Delta can get you from London to Pennsylvania in just under 11h 02m. Your travel time can differ by up to 3h 28m. London and Pennsylvania are separated by a distance of 3440 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from London to Pennsylvania one-way?

    To fly one-way, consider booking your trip with SAUDIA, which is currently one of the cheapest options available, starting at £328. British Airways flights start at £335 while deals on Air India start at £355 one-way.

  • What are the most popular routes from London to Pennsylvania?

    Most travelers choose London Heathrow - New York John F Kennedy Intl, London Heathrow - Newark or London Gatwick - New York John F Kennedy Intl when deciding on the best route from London to Pennsylvania.

  • What are the most reliable airlines from London to Pennsylvania?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Pennsylvania on time: Malaysia Airlines (89%), American Airlines (85%), Finnair (85%).

  • What are the cheapest flights from London to Pennsylvania?

    Looking at all options, your cheapest flight can be booked for £369. While the most popular route (London Heathrow - New York John F Kennedy Intl) can be booked for £84 on average, our data indicates £1,158 when flying from London to Pennsylvania.

  • Can I find deals for flights from London to Pennsylvania that include hotel bookings?

    Yes. In addition to deals on London to Pennsylvania flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Pennsylvania?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Pennsylvania.

  • Can I find deals for business class flights from London to Pennsylvania?

    Yes. Cheapflights offers flight deals from London to Pennsylvania by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Pennsylvania?

    Currently, February is the cheapest month in which you can book a flight from London to Pennsylvania (average of £273). Flying from London to Pennsylvania in May is currently the most expensive (average of £1,354). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
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Stansted to Dulles Intl flights
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Heathrow to Denver flights
London City to Boston flights
Stansted to San Francisco flights
Luton to Miami flights
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Top 10 airlines flying from London to Pennsylvania

Discover the top 10 airlines that operate flights from London to Pennsylvania. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£214Average£654FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£391Average£662FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£426Average£608FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£441Average£527FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£454Average£661FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£460Average£642FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£463Average£732FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£466Average£686FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£468Average£645FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£471Average£767FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Pennsylvania?

Cheapflights helps you search for flights from London to Pennsylvania via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Pennsylvania?

Cheapflights helps you find that perfect flight to Pennsylvania from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Pennsylvania with no change fees?

Yes, we can. To see specific flights from London to Pennsylvania with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Pennsylvania become cheaper?

Yes! Start tracking prices for London to Pennsylvania flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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