Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to Pennsylvania from £297

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — PHL
3 Jun — 10 Jun1
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 4 May 2026.

Sun 10/509:10
LGW
-
JFK
1 stop17h 50m
LEVEL
Mon 11/523:45
JFK
-
LGW
1 stop31h 30m
LEVEL
Deal found 29/4£421
Fri 8/506:00
LHR
-
JFK
1 stop19h 05m
Multiple Airlines
Sun 10/520:30
JFK
-
LHR
1 stop14h 55m
Multiple Airlines
Deal found 29/4£421
Fri 18/913:05
LGW
-
JFK
Nonstop7h 50m
Norse Atlantic UK
Sun 4/1018:20
JFK
-
LGW
Nonstop7h 00m
Norse Atlantic UK
Deal found 29/4£422
Sat 9/512:30
LHR
-
JFK
Nonstop7h 50m
British Airways
Tue 12/520:55
JFK
-
LHR
Nonstop7h 15m
British Airways
Deal found 30/4£422
Tue 19/513:05
LGW
-
JFK
Nonstop7h 50m
Norse Atlantic UK
Fri 17/718:20
JFK
-
LGW
Nonstop7h 00m
Norse Atlantic UK
Deal found 29/4£423
Thu 14/512:00
STN
-
JFK
1 stop12h 20m
Multiple Airlines
Sun 17/523:55
JFK
-
STN
1 stop14h 35m
Multiple Airlines
Deal found 29/4£423
Sat 29/814:25
LTN
-
JFK
3 stops30h 15m
Multiple Airlines
Sat 5/918:55
JFK
-
LTN
3 stops22h 00m
Multiple Airlines
Deal found 30/4£423
Wed 13/507:00
LHR
-
JFK
1 stop12h 20m
SWISS
Fri 22/519:25
JFK
-
LHR
1 stop16h 10m
SWISS
Deal found 30/4£423
Tue 12/513:00
LGW
-
JFK
1 stop11h 20m
Icelandair
Thu 8/1020:30
JFK
-
LGW
1 stop13h 10m
Icelandair
Deal found 3/5£423
Wed 16/912:15
LHR
-
LGA
1 stop11h 17m
United Airlines
Sun 20/919:48
LGA
-
LHR
1 stop9h 52m
United Airlines
Deal found 30/4£423
Wed 13/513:10
STN
-
JFK
2 stops32h 50m
Multiple Airlines
Sat 16/517:10
JFK
-
STN
3 stops23h 10m
Multiple Airlines
Deal found 29/4£423
Thu 4/615:50
LTN
-
JFK
2 stops30h 10m
Multiple Airlines
Mon 8/617:10
JFK
-
LTN
2 stops24h 40m
Multiple Airlines
Deal found 3/5£423

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 4 May 2026.

Round-trip from

£421

One-way from

£297

Popular in

December

Cheapest in

September

Average price

£574

Good round-trip deal

£652 or less

Good one-way deal

£481 or less
LEVEL
  • LEVEL
  • 8/9-12/9
  • 2 total stops
  • 49h 10m total
  • London to Pennsylvania
Search Deals
Icelandair
  • Icelandair
  • 21/9
  • 1 total stop
  • 11h 25m total
  • London to Pennsylvania
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 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 May 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 4 May 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 10/6

17:25-22:00

1 stop33h 35m

New York John F Kennedy Intl

Mon 15/6

23:55-08:30

1 stop27h 35m

£423

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Sun 27/9

09:55-21:40

1 stop16h 45m

New York John F Kennedy Intl

Sun 4/10

23:25-09:10

1 stop28h 45m

£434

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Mon 1/6

20:50-22:00

1 stop30h 10m

New York John F Kennedy Intl

Mon 8/6

23:55-09:10

1 stop28h 15m

£439

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Tue 2/6

07:20-22:00

1 stop19h 40m

New York John F Kennedy Intl

Sun 7/6

23:55-09:30

1 stop28h 35m

£451

LondonNew York

LTN - JFK

LTNJFK

London Luton

Wed 9/9

15:55-22:25

1 stop11h 30m

New York John F Kennedy Intl

Wed 16/9

16:55-09:00

1 stop11h 05m

£459

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Thu 28/5

07:05-15:40

1 stop13h 35m

New York John F Kennedy Intl

Thu 4/6

18:55-14:35

2 stops14h 40m

£465

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Sat 30/5

17:00-15:40

2 stops27h 40m

New York John F Kennedy Intl

Sun 7/6

17:10-09:35

1 stop11h 25m

£468

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Sat 29/8

06:40-15:40

2 stops14h 00m

New York John F Kennedy Intl

Thu 3/9

18:55-17:40

1 stop17h 45m

£482

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Mon 21/9

21:05-15:40

2 stops23h 35m

New York John F Kennedy Intl

Thu 24/9

18:55-16:00

1 stop16h 05m

£485

LondonNew York

LGW - LGA

LGWLGA

London Gatwick

Mon 14/9

09:40-16:55

1 stop12h 15m

New York LaGuardia

Thu 8/10

09:55-10:45

1 stop19h 50m

£498

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

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

The best time to book flights from London to Pennsylvania is 11 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.

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 £265). Flying from London to Pennsylvania in April is currently the most expensive (average of £1,093). 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 4 May 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 4 May 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?

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 4 May 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
1,392 reviews
Check prices

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Overall

7.6

Comfort

7.4

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
1,392 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Overall

7.6

Comfort

7.4

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
1,540 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Overall

7.6

Comfort

7.4

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
11,673 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Overall

7.6

Comfort

7.4

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
2,970 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Overall

7.6

Comfort

7.4

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
7,943 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Crew

8.2

Food

6.7

Boarding

7.7

Overall

7.6

Comfort

7.4

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?

    LEVEL, Scandinavian Airlines, and Air Transat can get you from London to Pennsylvania in just under 12h 15m. Your travel time can differ by up to 21h 20m. London and Pennsylvania are separated by a distance of 3456 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 JetBlue, which is currently one of the cheapest options available, starting at £270. Aer Lingus flights start at £384 while deals on British Airways start at £388 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 Heathrow - New York LaGuardia 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 (82%), American Airlines (77%), Finnair (77%).

  • What are the cheapest flights from London to Pennsylvania?

    Looking at all options, your cheapest flight can be booked for £442. While the most popular route (London Heathrow - New York John F Kennedy Intl) can be booked for £352 on average, our data indicates £1,042 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 £265). Flying from London to Pennsylvania in April is currently the most expensive (average of £1,093). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Heathrow to LaGuardia flights
Stansted to John F Kennedy Intl flights
London City to John F Kennedy Intl flights
Gatwick to Newark flights
Heathrow to Los Angeles flights
Gatwick to LaGuardia flights
Heathrow to Orlando flights
Luton to John F Kennedy Intl flights
London City to Newark flights
Stansted to Newark flights
Heathrow to Miami flights
Luton to Newark flights
Manchester to John F Kennedy Intl flights
Heathrow to Boston flights
Heathrow to San Francisco flights
Manchester to Orlando flights
Heathrow to O'Hare Intl flights
Heathrow to Dulles Intl flights
Heathrow to Dallas/Fort Worth flights
Heathrow to Las Vegas flights
Gatwick to Orlando flights
Heathrow to Seattle flights
Heathrow to Baltimore flights
Gatwick to Los Angeles flights
Stansted to Los Angeles flights
Gatwick to Boston flights
London City to Los Angeles flights
Heathrow to Hobby flights
Heathrow to Atlanta flights
Stansted to Orlando flights
Manchester to Newark flights
Gatwick to Miami flights
Stansted to Miami flights
London City to Miami flights
Heathrow to George Bush Intcntl flights
London City to Orlando flights
Manchester to LaGuardia flights
Heathrow to Tampa flights
Luton to Los Angeles flights
Gatwick to San Francisco flights
Stansted to LaGuardia flights
London City to Boston flights
London City to San Francisco flights
Heathrow to Ontario flights
Stansted to Boston flights
Stansted to San Francisco flights
Heathrow to Reagan-National flights

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 4 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£380Average£597FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£383Average£531FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£414Average£574FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£428Average£532FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£429Average£530FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£445Average£629FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£448Average£599FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£451Average£661FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapest£453Average£667FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£455Average£606FlexibilityNo cancel feeOn-time76%
Search Finnair 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.