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Cheap flights from Pennsylvania to London from £133

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

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 16 January 2026.

Round-trip from

£353

One-way from

£133

Popular in

June

Cheapest in

September

Average price

£516

Good round-trip deal

£527 or less

Good one-way deal

£416 or less
26/2-1/3
  • 26/2-1/3
  • 4 total stops
  • 47h 43m total
  • Pennsylvania to London
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27/4
  • 27/4
  • 1 total stop
  • 30h 35m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£106 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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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

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 16 January 2026.

Thu 26/213:05
LGA
-
LGW
2 stops23h 15m
Multiple Airlines
Sun 1/320:10
LGW
-
LGA
2 stops24h 28m
Multiple Airlines
Deal found 15/1£353
Sun 25/115:20
LGA
-
LHR
1 stop10h 50m
Air Canada
Tue 3/213:25
LHR
-
LGA
1 stop10h 37m
Air Canada
Deal found 15/1£353
Sun 25/121:50
JFK
-
LHR
Nonstop6h 50m
British Airways
Thu 5/211:25
LHR
-
JFK
1 stop12h 50m
British Airways
Deal found 15/1£353
Thu 16/423:25
JFK
-
LTN
1 stop13h 40m
Multiple Airlines
Mon 20/409:10
LTN
-
JFK
1 stop18h 20m
Multiple Airlines
Deal found 15/1£353
Sun 12/423:25
JFK
-
STN
1 stop18h 40m
Multiple Airlines
Tue 21/407:55
STN
-
JFK
2 stops16h 00m
Multiple Airlines
Deal found 15/1£353
Thu 26/209:45
JFK
-
LGW
2 stops26h 35m
Multiple Airlines
Sun 1/320:10
LGW
-
JFK
2 stops24h 59m
Multiple Airlines
Deal found 15/1£353
Fri 13/311:15
JFK
-
LHR
Nonstop6h 55m
American Airlines
Wed 18/310:00
LHR
-
JFK
1 stop11h 25m
American Airlines
Deal found 15/1£354
Thu 26/216:50
JFK
-
STN
2 stops13h 45m
Multiple Airlines
Sun 1/320:00
STN
-
JFK
2 stops25h 09m
Multiple Airlines
Deal found 15/1£354
Mon 19/118:05
JFK
-
LGW
Nonstop6h 55m
Norse Atlantic UK
Fri 30/113:00
LGW
-
JFK
Nonstop7h 55m
Norse Atlantic UK
Deal found 15/1£354
Wed 21/115:20
LGA
-
LHR
1 stop10h 50m
Air Canada
Thu 5/213:25
LHR
-
LGA
1 stop10h 37m
Air Canada
Deal found 14/1£355
Wed 4/221:10
JFK
-
LHR
Nonstop7h 20m
JetBlue
Thu 12/207:25
LHR
-
JFK
Nonstop8h 23m
JetBlue
Deal found 14/1£355
Wed 21/110:05
JFK
-
LTN
3 stops32h 00m
Multiple Airlines
Wed 28/117:10
LTN
-
JFK
2 stops25h 40m
Multiple Airlines
Deal found 15/1£355

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 16 January 2026.
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 - LHR

JFKLHR

New York John F Kennedy Intl

Tue 3/2

18:25-06:20

Nonstop6h 55m

London Heathrow

Thu 12/2

11:25-19:15

1 stop12h 50m

£353

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Wed 22/4

23:25-17:55

1 stop13h 30m

London Gatwick

Tue 5/5

09:10-21:40

1 stop17h 30m

£354

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 2/2

08:45-20:45

Nonstop7h 00m

London Heathrow

Wed 18/2

07:25-10:48

Nonstop8h 23m

£355

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 18/3

10:41-21:40

Nonstop6h 59m

London Heathrow

Wed 25/3

07:25-11:46

Nonstop8h 21m

£355

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 1/2

21:10-09:30

Nonstop7h 20m

London Heathrow

Thu 12/2

12:20-15:50

Nonstop8h 30m

£355

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Sat 7/2

17:00-11:00

1 stop13h 00m

London Stansted

Sat 28/2

06:00-14:50

1 stop13h 50m

£356

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Tue 31/3

18:20-06:20

Nonstop7h 00m

London Gatwick

Fri 3/4

13:05-15:55

Nonstop7h 50m

£356

New YorkLondon

JFK - LTN

JFKLTN

New York John F Kennedy Intl

Thu 5/2

16:50-16:00

2 stops18h 10m

London Luton

Wed 11/2

17:10-13:50

2 stops25h 40m

£357

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 31/3

09:50-21:40

Nonstop6h 50m

London Heathrow

Tue 7/4

07:30-19:10

1 stop16h 40m

£358

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Wed 6/5

17:59-08:00

1 stop9h 01m

London Heathrow

Wed 13/5

07:40-21:15

2 stops18h 35m

£359

Flights are sorted by cheapest return flights first.

Deals found on 14/1

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 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, June is the cheapest month in which you can book a flight from Pennsylvania to London (average of £96). Flying from Pennsylvania to London in May is currently the most expensive (average of £475). 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 16 January 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 16 January 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 for a return flight 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?

    British Airways, JetBlue, and Norse Atlantic UK can get you from Pennsylvania to London in just under 6h 55m. Your travel time will be generally consistent. There are 3440 mi between Pennsylvania and London. All flights are typically direct.

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

    When deciding which route to take from Pennsylvania to London consider New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or Washington, D.C. Dulles Intl - London Heathrow 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 Aer Lingus (93%), American Airlines (88%) and Finnair (88%).

  • What are the cheapest flights from Pennsylvania to London?

    Looking for the cheapest flight from Pennsylvania to London? While on average our users pay £1,023, our data indicates the cheapest price to be £179. The most popular route (New York John F Kennedy Intl - London Heathrow), is priced around £300.

  • 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, June is the cheapest month in which you can book a flight from Pennsylvania to London (average of £96). Flying from Pennsylvania to London in May is currently the most expensive (average of £475). 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
Milton Keynes
Croydon
Luton
Slough
Gatwick
Hounslow
Wembley
Ilford
Brentford
Hayes
Colchester
Watford
Crawley
Kingston upon Thames
Bedford
Chelmsford
Eastbourne
Romford
Folkestone
Southall

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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.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
Boston to Heathrow flights
LaGuardia to Heathrow flights
Newark to Gatwick flights
Dulles Intl to Heathrow flights
Los Angeles to Heathrow flights
John F Kennedy Intl to London City flights
O'Hare Intl to Heathrow flights
John F Kennedy Intl to Gatwick flights
Dallas/Fort Worth to Heathrow flights
San Francisco to Heathrow flights
John F Kennedy Intl to Stansted flights
Baltimore to Heathrow flights
LaGuardia to Gatwick flights
Boston to Gatwick flights
Seattle to Heathrow flights
Miami to Heathrow flights
Newark to Stansted flights
Atlanta to Heathrow flights
Newark to London City flights
Newark to Luton flights
Orlando to Heathrow flights
Hobby to Heathrow flights
Boston to London City flights
Dulles Intl to Gatwick flights
Denver to Heathrow flights
Reagan-National to Heathrow flights
Philadelphia to Heathrow flights
Boston to Stansted flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
O'Hare Intl to Gatwick flights
Newark to Edinburgh flights
Los Angeles to Gatwick flights
John F Kennedy Intl to Edinburgh flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
Los Angeles to London City flights
Charlotte to Heathrow flights
O'Hare Intl to London City flights
San Francisco to Gatwick flights
Minneapolis to Heathrow flights
O'Hare Intl to Stansted flights
Boston to Edinburgh flights
Los Angeles to Stansted flights
Tampa to Heathrow flights
Dallas/Fort Worth 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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£384Average£547FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£392Average£529FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£427Average£516FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£510Average£665FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£1,032Average£1,138FlexibilityNo 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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