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Cheap flights from Pennsylvania to London from £218

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
30 Jun — 7 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pennsylvania to London

Enter your travel dates to find the best prices.

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 31 May 2026.

Wed 2/923:55
JFK
-
LTN
1 stop16h 20m
Multiple Airlines
Wed 16/915:55
LTN
-
JFK
1 stop11h 30m
Multiple Airlines
Deal found 26/5£521
Sun 16/817:10
JFK
-
LHR
1 stop11h 25m
Scandinavian Airlines
Sat 22/806:40
LHR
-
JFK
2 stops14h 00m
Scandinavian Airlines
Deal found 26/5£521
Thu 20/823:10
JFK
-
STN
2 stops20h 20m
Multiple Airlines
Mon 24/819:15
STN
-
JFK
2 stops31h 50m
Multiple Airlines
Deal found 26/5£521
Wed 16/900:40
JFK
-
LGW
1 stop10h 45m
Air Europa
Tue 22/917:25
LGW
-
JFK
1 stop34h 30m
Air Europa
Deal found 26/5£521
Wed 22/720:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Mon 30/1112:15
LHR
-
JFK
1 stop10h 45m
Icelandair
Deal found 26/5£521
Sun 23/823:55
JFK
-
STN
1 stop17h 25m
Multiple Airlines
Mon 31/808:30
STN
-
JFK
1 stop18h 55m
Multiple Airlines
Deal found 26/5£521
Mon 7/916:55
JFK
-
LTN
1 stop11h 20m
Multiple Airlines
Mon 14/914:25
LTN
-
JFK
1 stop13h 00m
Multiple Airlines
Deal found 26/5£522
Tue 3/1122:00
JFK
-
LHR
1 stop18h 35m
TAP AIR PORTUGAL
Tue 10/1118:30
LHR
-
JFK
1 stop30h 35m
TAP AIR PORTUGAL
Deal found 26/5£522
Mon 17/820:30
JFK
-
STN
2 stops17h 20m
Multiple Airlines
Sat 22/805:55
STN
-
JFK
2 stops18h 25m
Multiple Airlines
Deal found 26/5£522
Tue 29/922:05
JFK
-
LGW
2 stops17h 20m
TAP AIR PORTUGAL
Thu 15/1010:35
LGW
-
JFK
1 stop14h 30m
TAP AIR PORTUGAL
Deal found 26/5£522
Sat 19/917:10
JFK
-
LHR
1 stop11h 25m
Scandinavian Airlines
Sun 20/919:30
LHR
-
JFK
1 stop26h 30m
Scandinavian Airlines
Deal found 26/5£523
Sat 5/922:30
JFK
-
LGW
1 stop30h 05m
Multiple Airlines
Sat 19/913:05
LGW
-
JFK
Nonstop7h 50m
Multiple Airlines
Deal found 26/5£523

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 31 May 2026.

Round-trip from

£521

One-way from

£218

Popular in

June

Cheapest in

September

Average price

£709

Good round-trip deal

£241 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 16/8-22/8
  • 3 total stops
  • 25h 25m total
  • Pennsylvania to London
Search Deals
22/7
  • 22/7
  • 1 total stop
  • 32h 31m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£132 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£26 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 Pennsylvania to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 31 May 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 return flight

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Tue 28/7

23:50-07:15

1 stop26h 25m

London Gatwick

Tue 11/8

09:10-22:00

1 stop17h 50m

£537

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 7/9

18:55-17:40

1 stop17h 45m

London Heathrow

Sat 19/9

06:40-17:00

1 stop15h 20m

£545

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Mon 9/11

00:20-09:55

1 stop28h 35m

London Stansted

Tue 17/11

17:20-22:25

1 stop34h 05m

£582

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 16/11

18:00-06:20

Nonstop7h 20m

London Heathrow

Thu 19/11

09:00-20:30

1 stop16h 30m

£582

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 17/10

18:40-06:50

Nonstop7h 10m

London Heathrow

Sat 24/10

07:05-12:30

1 stop10h 25m

£586

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 24/8

20:50-09:20

Nonstop7h 30m

London Heathrow

Sat 29/8

06:50-13:10

1 stop11h 20m

£587

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 10/8

19:00-07:15

Nonstop7h 15m

London Heathrow

Mon 31/8

06:30-12:29

1 stop10h 59m

£589

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 20/8

20:15-08:50

Nonstop7h 35m

London Heathrow

Mon 24/8

11:45-17:05

1 stop10h 20m

£590

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 17/8

18:30-06:45

Nonstop7h 15m

London Heathrow

Wed 19/8

15:20-22:40

1 stop12h 20m

£591

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 18/8

09:35-21:25

Nonstop6h 50m

London Heathrow

Sat 12/9

09:30-12:30

Nonstop8h 00m

£594

Flights are sorted by cheapest return flights first.

Deals found on 26/5

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 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 Pennsylvania to London

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

Currently, February is the cheapest month in which you can book a flight from Pennsylvania to London (average of £33). Flying from Pennsylvania to London in October is currently the most expensive (average of £1,151). 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 31 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to London as you normally would.

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 31 May 2026.

The most flights from USPA to LON are scheduled on a Friday (15 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 for a return flight from Pennsylvania to London?

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

The best time to book flights from Pennsylvania to London is 13 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.

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?

    LEVEL, Scandinavian Airlines, and Turkish Airlines can get you from Pennsylvania to London in just under 17h 45m. Your travel time can differ by up to 10h 50m. There are 3440 mi between Pennsylvania and London. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as £204 on Kenya Airways. Other airlines that offer cheap prices include SAUDIA from £232 and British Airways from £279 one-way.

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

    When deciding which route to take from Pennsylvania to London consider Newark - London Heathrow, New York John F Kennedy Intl - London Heathrow or Newark - London Gatwick as they are the most popular.

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

    The top 3 most reliable airlines when flying from Pennsylvania to London are Malaysia Airlines (98%), Iberia (96%) and American Airlines (94%).

  • What are the cheapest flights from Pennsylvania to London?

    Looking for the cheapest flight from Pennsylvania to London? While on average our users pay £843, our data indicates the cheapest price to be £245. The most popular route (Newark - London Heathrow), is priced around £420.

  • 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 holiday 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, February is the cheapest month in which you can book a flight from Pennsylvania to London (average of £33). Flying from Pennsylvania to London in October is currently the most expensive (average of £1,151). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Ipswich
Watford
Romford
Guildford
Borehamwood
Southall
Southend-on-Sea

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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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John F Kennedy Intl to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to Stansted flights
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Dulles Intl to Gatwick flights
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LaGuardia to Stansted flights
John F Kennedy Intl to Edinburgh flights
Denver to Heathrow flights
Los Angeles to Stansted flights
Newark to Edinburgh flights
Baltimore to Gatwick flights
Dulles Intl to London City flights
O'Hare Intl to Gatwick flights
Boston to Edinburgh flights
Reagan-National to Gatwick flights
San Francisco to Gatwick flights
O'Hare Intl to Stansted flights
Tampa to Heathrow flights
Los Angeles to London City flights
Sky Harbor Intl to Heathrow flights
San Francisco to Stansted flights
Orlando to Gatwick flights

Top 5 airlines flying from Pennsylvania to London

Discover the top 5 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 858,174 searches. Data last updated 31 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£383Average£564FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£390Average£517FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£467Average£651FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£520Average£696FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£1,028Average£1,133FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 Pennsylvania to London?

Cheapflights makes it easy to find Pennsylvania to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Pennsylvania to London?

Cheapflights helps you find that perfect flight to London from Pennsylvania 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 Pennsylvania to London with no change fees?

Yes! Cheapflights helps users easily find flights from Pennsylvania to London with no change fees.

Can Cheapflights notify me if prices for flights from Pennsylvania to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Pennsylvania today and book when prices fit your budget.

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