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$170+ 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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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Cheap 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 March 13, 2026.

This Mytrip deal was found by Cheapflights users on 3/8. 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 5/88:30 pm
JFK
-
STN
2 stops21h 50m
Multiple Airlines
Tue 5/126:30 am
STN
-
JFK
2 stops17h 50m
Multiple Airlines
Deal found 3/8$471
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 5/111:10 pm
JFK
-
LGW
1 stop10h 30m
Icelandair
Mon 5/113:40 pm
LGW
-
JFK
1 stop11h 25m
Icelandair
Deal found 3/8$471
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/2110:05 pm
JFK
-
STN
1 stop12h 55m
Multiple Airlines
Thu 4/306:00 am
STN
-
JFK
1 stop16h 45m
Multiple Airlines
Deal found 3/9$472
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 5/48:30 pm
JFK
-
LGW
1 stop10h 15m
Icelandair
Fri 5/83:40 pm
LGW
-
JFK
1 stop11h 25m
Icelandair
Deal found 3/8$472
This FlightHub deal was found by Cheapflights users on 3/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:10 pm
JFK
-
LHR
2 stops34h 45m
Scandinavian Airlines
Wed 4/227:05 am
LHR
-
JFK
1 stop13h 35m
Scandinavian Airlines
Deal found 3/8$474
This Mytrip deal was found by Cheapflights users on 3/9. 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 5/111:10 pm
JFK
-
STN
2 stops19h 10m
Multiple Airlines
Fri 5/86:35 am
STN
-
JFK
2 stops17h 45m
Multiple Airlines
Deal found 3/9$474
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 5/211:10 pm
JFK
-
LGW
1 stop10h 30m
Icelandair
Tue 5/121:00 pm
LGW
-
JFK
1 stop11h 20m
Icelandair
Deal found 3/8$474
This Icelandair deal was found by Cheapflights users on 3/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:10 pm
JFK
-
LHR
1 stop16h 10m
Icelandair
Mon 5/111:05 pm
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 3/8$475
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 4/2110:05 pm
JFK
-
STN
1 stop12h 55m
Multiple Airlines
Thu 5/76:00 am
STN
-
JFK
1 stop16h 45m
Multiple Airlines
Deal found 3/8$475
This Mytrip deal was found by Cheapflights users on 3/9. 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 4/306:20 pm
JFK
-
LGW
Nonstop7h 00m
Norse Atlantic UK
Fri 5/81:05 pm
LGW
-
JFK
Nonstop7h 50m
Norse Atlantic UK
Deal found 3/9$475
This Icelandair deal was found by Cheapflights users on 3/9. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:10 pm
JFK
-
LHR
1 stop16h 10m
Icelandair
Tue 5/129:25 pm
LHR
-
JFK
1 stop29h 40m
Icelandair
Deal found 3/9$476
This Mytrip deal was found by Cheapflights users on 3/8. 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 5/811:10 pm
JFK
-
LTN
2 stops13h 15m
Multiple Airlines
Tue 5/129:40 am
LTN
-
JFK
2 stops17h 25m
Multiple Airlines
Deal found 3/8$477

Find flight deals from Pennsylvania to London

Keep the following information in mind while searching for Pennsylvania to London flight deals. Data was last updated March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$471
(Mytrip)

One-way from

$170
(Priceline)

Popular in

June

Cheapest in

September

Average price

$776

Good round-trip deal

$733 or less

Good one-way deal

$426 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
Search Deals
From Pennsylvania to London (LON)
Search Deals
One-way flight from Pennsylvania to London (LON)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Pennsylvania to London (LON).
Search Deals
Price to beat on a one-way flight from Pennsylvania to London (LON).
Search Deals

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 March 13, 2026.
Use the filters below to find and compare flights from Pennsylvania to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 9/6

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Fri 9/11

1:05 pm-3:55 pm

Nonstop7h 50m

$491

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Fri 4/3

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Mon 4/27

5:20 am-11:00 am

1 stop34h 40m

$529

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 4/20

8:30 pm-8:20 pm

1 stop18h 50m

London Heathrow

Fri 4/24

9:25 pm-10:05 pm

1 stop29h 40m

$552

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 4/16

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Fri 4/24

6:25 pm-10:10 pm

1 stop32h 45m

$557

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 4/30

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Fri 5/8

5:25 pm-10:30 pm

1 stop34h 05m

$592

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 9/4

7:10 pm-7:20 am

Nonstop7h 10m

London Heathrow

Fri 9/11

7:30 am-7:10 pm

1 stop16h 40m

$600

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 4/19

7:20 pm-7:20 am

Nonstop7h 00m

London Heathrow

Sun 4/26

10:20 am-7:10 pm

1 stop13h 50m

$601

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 4/25

7:29 pm-12:50 pm

1 stop12h 21m

London Heathrow

Sun 5/3

10:20 am-7:10 pm

1 stop13h 50m

$604

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 4/4

9:00 am-10:00 am

1 stop20h 00m

London Heathrow

Wed 4/8

8:40 am-4:35 pm

1 stop12h 55m

$615

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 8/18

8:30 am-8:40 pm

Nonstop7h 10m

London Heathrow

Thu 8/27

6:50 am-1:10 pm

1 stop11h 20m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 60 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Pennsylvania to London (average of $483). Flying from Pennsylvania to London in June is currently the most expensive (average of $875). 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 March 13, 2026.

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 March 13, 2026.

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

How much does it cost to fly round-trip from Pennsylvania to London?

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, Icelandair, and Finnair fly from Pennsylvania to London in about 7h. The time it takes to get you to your destination can typically vary by up to 11h 50m. The distance from Pennsylvania to London is about 3458 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 JetBlue ($131), Icelandair ($161), and TAP AIR PORTUGAL ($198).

  • 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 (75%), American Airlines (74%) or Finnair (74%) 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 $1,783 for a flight from Pennsylvania to London. The cheapest flight overall is $306 while the most popular route, (New York John F Kennedy Intl - London Heathrow) is currently priced at $409.

  • 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, August is the cheapest month in which you can book a flight from Pennsylvania to London (average of $483). Flying from Pennsylvania to London in June is currently the most expensive (average of $875). 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
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Borehamwood
Aylesbury
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Hayes
Kingston upon Thames
Eastbourne
Sutton
Slough

Browse thousands of different options on Cheapflights for your next trip

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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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$136Average$667FlexibilityNo cancel feeOn-time62%
DeltaCheapest$219Average$805FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$492Average$716FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$505Average$794FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$929FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$515Average$876FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$522Average$780FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$560Average$955FlexibilityNo cancel feeOn-time69%
IberiaCheapest$592Average$894FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$647Average$1,213FlexibilityNo cancel feeOn-time67%

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