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$135+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
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 August 21, 2025.

Round-trip from

$419
(Cheapflightsfares)

One-way from

$135
(Flightnetwork)

Popular in

June

Cheapest in

February

Average price

$685

Good round-trip deal

$568 or less

Good one-way deal

$464 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. 18% potential increase in price ($185 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 August 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 August 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Mon 10/2712:30 amJFK - LTN
1 stop16h 25mMultiple Airlines
Mon 11/179:40 pmLTN - JFK
1 stop29h 50mMultiple Airlines
Deal found 8/19$419
This LEVEL deal was found by Cheapflights users on 8/20. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:45 pmJFK - LHR
1 stop28h 25mLEVEL
Sat 11/159:55 amLHR - JFK
1 stop17h 05mLEVEL
Deal found 8/20$419
This CheapOair deal was found by Cheapflights users on 8/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:05 pmJFK - LGW
Nonstop7h 05mBritish Airways
Thu 10/98:40 pmLGW - JFK
2 stops28h 20mBritish Airways
Deal found 8/20$419
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Mon 10/2011:25 pmJFK - LTN
1 stop18h 55mMultiple Airlines
Sat 11/159:20 amLTN - JFK
1 stop17h 40mMultiple Airlines
Deal found 8/19$420
This Connections by easyJet deal was found by Cheapflights users on 8/20. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/512:30 amJFK - LGW
1 stop31h 10mMultiple Airlines
Tue 11/44:35 pmLGW - JFK
1 stop34h 55mMultiple Airlines
Deal found 8/20$420
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 - STN
1 stop16h 10mMultiple Airlines
Sun 11/239:35 amSTN - JFK
1 stop17h 25mMultiple Airlines
Deal found 8/20$421
This Trip.com deal was found by Cheapflights users on 8/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:20 pmJFK - LGW
Nonstop7h 00mNorse Atlantic UK
Mon 11/31:00 pmLGW - JFK
Nonstop7h 55mNorse Atlantic UK
Deal found 8/20$421
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Fri 11/1412:30 amJFK - LTN
1 stop15h 25mMultiple Airlines
Sun 11/232:35 pmLTN - JFK
2 stops36h 55mMultiple Airlines
Deal found 8/20$422
This Finnair deal was found by Cheapflights users on 8/20. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:55 pmJFK - LHR
1 stop13h 10mFinnair
Sun 10/59:45 amLHR - JFK
Nonstop7h 55mFinnair
Deal found 8/20$422
This Norse deal was found by Cheapflights users on 8/21. 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 10/196:20 pmJFK - LGW
Nonstop7h 00mMultiple Airlines
Tue 11/187:10 amLGW - JFK
1 stop20h 20mMultiple Airlines
Deal found 8/21$422
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 11/1112:30 amJFK - LTN
1 stop15h 25mMultiple Airlines
Thu 11/209:55 pmLTN - JFK
2 stops53h 35mMultiple Airlines
Deal found 8/18$423
This American Airlines deal was found by Cheapflights users on 8/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:15 pmJFK - LHR
Nonstop7h 00mAmerican Airlines
Wed 11/126:15 amLHR - JFK
1 stop12h 00mAmerican Airlines
Deal found 8/21$423

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 August 21, 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 - STN

JFKSTN

New York John F Kennedy Intl

Sun 11/16

11:45 pm-8:55 pm

1 stop16h 10m

London Stansted

Sun 11/23

9:35 am-10:00 pm

1 stop17h 25m

$421

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Fri 11/14

6:05 pm-6:00 am

Nonstop6h 55m

London Gatwick

Tue 11/25

7:10 am-10:30 pm

1 stop20h 20m

$422

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Wed 11/5

12:30 am-10:35 pm

1 stop17h 05m

London Gatwick

Sat 11/22

6:55 am-10:30 pm

1 stop20h 35m

$422

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Tue 11/4

12:30 am-10:35 pm

1 stop17h 05m

London Gatwick

Tue 11/25

7:10 am-10:30 pm

1 stop20h 20m

$422

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Fri 11/14

12:30 am-9:25 pm

1 stop15h 55m

London Gatwick

Tue 12/9

7:10 am-10:30 pm

1 stop20h 20m

$422

New YorkLondon

JFK - LTN

JFKLTN

New York John F Kennedy Intl

Fri 11/14

12:30 am-8:55 pm

1 stop15h 25m

London Luton

Mon 11/24

9:15 am-10:30 pm

1 stop18h 15m

$423

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Mon 11/10

11:45 pm-7:50 am

1 stop27h 05m

London Gatwick

Thu 11/13

5:10 pm-10:00 pm

1 stop33h 50m

$425

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Mon 10/20

11:25 pm-8:30 am

1 stop28h 05m

London Gatwick

Fri 10/31

1:00 pm-11:00 pm

1 stop14h 00m

$425

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 1/9

11:45 pm-8:05 pm

1 stop15h 20m

London Heathrow

Sun 1/11

6:50 pm-10:00 pm

1 stop32h 10m

$428

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 1/30

11:45 pm-9:10 am

1 stop28h 25m

London Heathrow

Mon 2/2

9:55 am-10:00 pm

1 stop17h 05m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

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 August 21, 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 August 21, 2025.

The most flights from USPA to LON 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).

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 LEVEL, Scandinavian Airlines, and United Airlines fly from Pennsylvania to London in about 15h 20m. The time it takes to get you to your destination can typically vary by up to 8h 20m. 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 ($137), Virgin Atlantic ($154), and JetBlue ($168).

  • 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 Gatwick.

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

    Consider Aer Lingus (80%), 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 $1,893 for a flight from Pennsylvania to London. The cheapest flight overall is $413 while the most popular route, (New York John F Kennedy Intl - London Heathrow) is currently priced at $366.

  • 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
Thornton Heath
Southend-on-Sea
Harrow
Canterbury
Croydon
Dartford
Dover
Orpington
Gatwick
Borehamwood
Aylesbury
Chelmsford
Bedford
Folkestone
Chichester
Arundel
Eastbourne
Milton Keynes

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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 10 airlines flying from Pennsylvania to London

Discover the top 10 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$219Average$761FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$499Average$746FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$505Average$652FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$515Average$760FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$516Average$858FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$556Average$807FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$575Average$878FlexibilityNo cancel feeOn-time69%
FinnairCheapest$581Average$823FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$585Average$797FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$607Average$776FlexibilityNo cancel feeOn-time77%

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