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Cheap flights from London to Pennsylvania from £246

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — PHL
14 Jul — 21 Jul1
1 adult

Cheap flight deals from London to Pennsylvania

Keep the following information in mind while searching for London to Pennsylvania flight deals. Data was last updated 9 July 2025.

Round-trip from

£328

One-way from

£246

Popular in

August

Cheapest in

February

Average price

£623

Good round-trip deal

£517 or less

Good one-way deal

£672 or less
SWISS
  • SWISS
  • 9/11-22/11
  • 2 total stops
  • 39h 20m total
  • London to Pennsylvania
Search Deals
18/8
  • 18/8
  • 2 total stops
  • 29h 40m total
  • London to Pennsylvania
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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.
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Find flight deals from London to Pennsylvania

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 9 July 2025.

Thu 6/1118:40LGW - JFK
1 stop23h 25mSWISS
Tue 18/1120:55JFK - LGW
1 stop15h 55mSWISS
Deal found 8/7£328
Fri 12/913:25LHR - JFK
1 stop10h 55mAer Lingus
Fri 19/918:25JFK - LHR
1 stop9h 40mAer Lingus
Deal found 8/7£328
Fri 14/1107:40LHR - LGA
2 stops16h 23mUnited Airlines
Wed 19/1110:25LGA - LHR
1 stop15h 15mUnited Airlines
Deal found 8/7£329
Mon 4/811:55LHR - JFK
Nonstop8h 27mIcelandair
Mon 18/808:45JFK - LHR
Nonstop7h 00mIcelandair
Deal found 8/7£329
Mon 15/912:10LGW - JFK
1 stop13h 20mJetBlue
Wed 8/1016:50JFK - LGW
1 stop11h 45mJetBlue
Deal found 8/7£329
Wed 3/908:40LHR - JFK
1 stop12h 55mUnited Airlines
Fri 26/909:00JFK - LHR
1 stop16h 30mUnited Airlines
Deal found 8/7£329
Wed 20/815:05LGW - JFK
Nonstop8h 00mBritish Airways
Mon 25/820:05JFK - LGW
Nonstop7h 05mBritish Airways
Deal found 7/7£330
Fri 31/1008:55LHR - LGA
2 stops14h 07mAir Canada
Tue 4/1115:20LGA - LHR
1 stop10h 50mAir Canada
Deal found 7/7£330
Fri 29/822:50STN - JFK
2 stops23h 10mMultiple Airlines
Tue 2/918:55JFK - STN
2 stops18h 15mMultiple Airlines
Deal found 8/7£330
Mon 18/812:00LGW - JFK
Nonstop8h 29mVirgin Atlantic
Mon 25/821:35JFK - LGW
Nonstop7h 25mVirgin Atlantic
Deal found 8/7£331
Wed 5/1106:00LHR - JFK
1 stop12h 05mSWISS
Sun 9/1120:55JFK - LHR
1 stop11h 05mSWISS
Deal found 7/7£332
Wed 17/919:00LTN - JFK
1 stop32h 15mMultiple Airlines
Tue 23/900:15JFK - LTN
1 stop28h 00mMultiple Airlines
Deal found 8/7£332

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 9 July 2025.
Use the filters below to find and compare flights from London to Pennsylvania that are best for you.

Fly from

London

Fly to

Pennsylvania

Route

Depart

Return

Price

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Thu 6/11

18:40-13:05

1 stop23h 25m

New York John F Kennedy Intl

Sat 15/11

16:25-17:50

1 stop20h 25m

£328

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Fri 12/9

13:25-19:20

1 stop10h 55m

New York John F Kennedy Intl

Wed 17/9

18:25-09:05

1 stop9h 40m

£328

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Fri 14/11

07:40-19:03

2 stops16h 23m

New York LaGuardia

Wed 19/11

10:25-06:40

1 stop15h 15m

£329

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Mon 4/8

11:55-15:22

Nonstop8h 27m

New York John F Kennedy Intl

Mon 18/8

08:45-20:45

Nonstop7h 00m

£329

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Mon 15/9

12:10-20:30

1 stop13h 20m

New York John F Kennedy Intl

Wed 8/10

16:50-09:35

1 stop11h 45m

£329

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Wed 3/9

08:40-16:35

1 stop12h 55m

New York John F Kennedy Intl

Fri 26/9

09:00-06:30

1 stop16h 30m

£329

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Wed 20/8

15:05-18:05

Nonstop8h 00m

New York John F Kennedy Intl

Mon 25/8

20:05-08:10

Nonstop7h 05m

£330

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Fri 31/10

08:55-19:02

2 stops14h 07m

New York LaGuardia

Tue 4/11

15:20-07:10

1 stop10h 50m

£330

LondonNew York

STN - JFK

STNJFK

London Stansted

Fri 29/8

22:50-17:00

2 stops23h 10m

New York John F Kennedy Intl

Tue 2/9

18:55-18:10

2 stops18h 15m

£330

LondonNew York

LGW - JFK

LGWJFK

London Gatwick

Mon 18/8

12:00-15:29

Nonstop8h 29m

New York John F Kennedy Intl

Mon 25/8

21:35-10:00

Nonstop7h 25m

£331

Flights are sorted by cheapest return flights first.

Deals found on 6/7

Showing 1-10 of 50 results
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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, March is the cheapest month in which you can book a flight from London to Pennsylvania (average of £648). Flying from London to Pennsylvania in July is currently the most expensive (average of £839). 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 9 July 2025.

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 9 July 2025.

The most flights from LON to USPA are scheduled on a Monday (15 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (10 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 9 July 2025.
See what other customers who have flown with Delta, Austrian Airlines, andFinnair 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.
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very Good
7,958 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Austrian Airlines
7.6
Good
806 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Finnair
7.6
Good
1,312 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Air France
7.5
Good
1,467 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
SWISS
7.5
Good
1,652 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

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.

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

    To fly one-way, consider booking your trip with Norse Atlantic UK, which is currently one of the cheapest options available, starting at £257. A.P.G. flights start at £260 while deals on Aer Lingus start at £287 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 (76%), American Airlines (76%), Finnair (76%).

  • What are the cheapest flights from London to Pennsylvania?

    Looking at all options, your cheapest flight can be booked for £446. While the most popular route (London Heathrow - New York John F Kennedy Intl) can be booked for £113 on average our data indicates £2,410 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, March is the cheapest month in which you can book a flight from London to Pennsylvania (average of £648). Flying from London to Pennsylvania in July is currently the most expensive (average of £839). 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
Heathrow to LaGuardia flights
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Gatwick to Baltimore flights
Heathrow to Austin 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 9 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£298Average£464FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IcelandairCheapest£331Average£530FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapest£333Average£531FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
JetBlueCheapest£350Average£524FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£407Average£533FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£426Average£599FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£437Average£647FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£448Average£584FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapest£450Average£685FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£458Average£619FlexibilityNo 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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