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$142+ Cheap flights from Pennsylvania to London (LON)

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Pennsylvania to London

Keep the following information in mind while searching for Pennsylvania to London flight deals. Data was last updated September 15, 2025.

Round-trip from

$425
(Cheapflightsfares)

One-way from

$142
(CheapOair)

Popular in

June

Cheapest in

September

Average price

$656

Good round-trip deal

$615 or less

Good one-way deal

$474 or less
From Pennsylvania to London (LON)
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One-way flight from Pennsylvania to London (LON)
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Highest demand for flights based on searches. 19% potential increase in price ($190 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Pennsylvania to London (LON).
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Price to beat on a one-way flight from Pennsylvania to London (LON).
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Find flight deals from Pennsylvania to London

Cheapest flights from Pennsylvania to London
Explore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1611:45 pmJFK - LGW
1 stop18h 35mMultiple Airlines
Tue 12/169:40 amLGW - JFK
2 stops17h 20mMultiple Airlines
Deal found 9/15$426
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2010:05 pmJFK - LHR
1 stop18h 55mTAP AIR PORTUGAL
Tue 9/3011:20 amLHR - JFK
1 stop13h 45mTAP AIR PORTUGAL
Deal found 9/15$427
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:00 pmJFK - LGW
1 stop12h 45mTAP AIR PORTUGAL
Tue 11/1810:40 amLGW - JFK
1 stop14h 25mTAP AIR PORTUGAL
Deal found 9/15$427
This Ticket deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:05 pmJFK - LHR
1 stop19h 50mTAP AIR PORTUGAL
Thu 11/206:30 pmLHR - JFK
1 stop30h 35mTAP AIR PORTUGAL
Deal found 9/14$428
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:05 amJFK - LTN
2 stops28h 20mMultiple Airlines
Wed 11/268:05 pmLTN - JFK
2 stops25h 35mMultiple Airlines
Deal found 9/15$428
This Norse deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:05 pmJFK - LGW
Nonstop6h 55mMultiple Airlines
Tue 11/44:35 pmLGW - JFK
1 stop34h 55mMultiple Airlines
Deal found 9/13$428
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:00 pmJFK - LHR
1 stop18h 35mTAP AIR PORTUGAL
Tue 11/188:15 amLHR - JFK
1 stop16h 50mTAP AIR PORTUGAL
Deal found 9/15$429
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:45 amJFK - LTN
2 stops25h 15mMultiple Airlines
Mon 11/106:00 amLTN - JFK
2 stops15h 09mMultiple Airlines
Deal found 9/14$429
This Norse Atlantic Airways deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse Atlantic Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:20 pmJFK - LGW
Nonstop7h 00mNorse Atlantic UK
Thu 10/21:05 pmLGW - JFK
Nonstop7h 50mNorse Atlantic UK
Deal found 9/13$429
This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:50 pmLGA - LGW
2 stops15h 55mMultiple Airlines
Sun 11/29:35 pmLGW - LGA
2 stops23h 03mMultiple Airlines
Deal found 9/13$431
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3011:45 pmJFK - LHR
1 stop13h 15mMultiple Airlines
Sat 1/319:55 amLHR - JFK
1 stop17h 05mMultiple Airlines
Deal found 9/13$431
This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:50 pmJFK - LTN
2 stops12h 05mMultiple Airlines
Mon 11/106:00 amLTN - JFK
2 stops21h 39mMultiple Airlines
Deal found 9/13$431

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to London 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 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Pennsylvania to London that are best for you.

Fly from

Pennsylvania

Fly to

London

Route

Depart

Return

Price

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 10/26

7:05 pm-6:00 am

Nonstop6h 55m

London Gatwick

Tue 11/4

4:35 pm-10:30 pm

1 stop34h 55m

$444

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Wed 10/8

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Wed 10/22

1:05 pm-3:55 pm

Nonstop7h 50m

$455

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Mon 9/29

12:15 am-9:00 pm

1 stop15h 45m

London Gatwick

Sun 1/25

1:00 pm-3:55 pm

Nonstop7h 55m

$473

New YorkLondon

LGA - LGW

LGALGW

New York LaGuardia

Sun 10/19

5:55 am-10:10 am

1 stop23h 15m

London Gatwick

Sat 11/1

2:00 pm-10:00 am

1 stop24h 00m

$478

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 10/12

12:30 pm-9:35 am

1 stop16h 05m

London Gatwick

Thu 10/16

12:10 pm-6:59 pm

1 stop11h 49m

$479

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 9/25

2:50 pm-9:35 am

1 stop13h 45m

London Gatwick

Thu 10/23

12:10 pm-10:13 pm

1 stop15h 03m

$479

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Wed 10/1

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Sat 10/11

1:05 pm-3:55 pm

Nonstop7h 50m

$479

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 10/5

2:50 pm-9:35 am

1 stop13h 45m

London Gatwick

Mon 10/13

12:10 pm-10:03 pm

1 stop14h 53m

$479

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Fri 10/10

4:50 pm-9:35 am

1 stop11h 45m

London Gatwick

Wed 10/22

12:10 pm-6:59 pm

1 stop11h 49m

$479

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Wed 11/19

10:00 pm-3:05 pm

1 stop12h 05m

London Gatwick

Thu 11/27

10:40 am-8:05 pm

1 stop14h 25m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to London

Have a flexible travel schedule? Discover the best time to fly to London from Pennsylvania with our price prediction graph.
Estimated round-trip 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 Pennsylvania to London

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

Currently, November is the cheapest month in which you can book a flight from Pennsylvania to London (average of $661). Flying from Pennsylvania to London in June is currently the most expensive (average of $1,097). 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 PA to LON?

Find hourly flight availability from Pennsylvania to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Pennsylvania to London, 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 Pennsylvania to London

Explore weekly flight availability from Pennsylvania to London. 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 September 15, 2025.

The most flights from USPA to LON are scheduled on a Monday (15 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (10 on average).

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to London. 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 Pennsylvania to London?

    Airlines like Norse Atlantic UK, JetBlue, and Finnair fly from Pennsylvania to London in about 6h 55m. The time it takes to get you to your destination can typically vary by up to 9h 10m. The distance from Pennsylvania to London is about 3440 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Pennsylvania to London are Norse Atlantic UK ($149), TAP AIR PORTUGAL ($188), and LEVEL ($195).

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

    The most popular flight routes from Pennsylvania to London are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and New York John F Kennedy Intl - London City.

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

    Consider Aer Lingus (78%), American Airlines (67%) or Finnair (67%) when booking your flight. These represent the most reliable airlines when flying from Pennsylvania to London.

  • What are the cheapest flights from Pennsylvania to London?

    On average you can expect to pay $1,863 for a flight from Pennsylvania to London. The cheapest flight overall is $443 while the most popular route, (New York John F Kennedy Intl - London Heathrow) is currently priced at $391.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to London 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 Pennsylvania to London?

    Currently, November is the cheapest month in which you can book a flight from Pennsylvania to London (average of $661). Flying from Pennsylvania to London in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
Eastbourne
Sutton

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Alternative routes for Pennsylvania to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Pennsylvania to London

Discover the top 9 airlines that operate flights from Pennsylvania to London. 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 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$136Average$661FlexibilityNo cancel feeOn-time62%
DeltaCheapest$219Average$739FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$492Average$707FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$511Average$758FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$515Average$847FlexibilityNo cancel feeOn-time71%
FinnairCheapest$516Average$818FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$539Average$794FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$601Average$799FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$634Average$889FlexibilityNo cancel feeOn-time69%

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