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Cheap flights from Pennsylvania to London from £174

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
18 May — 25 May1
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 18 April 2026.

Tue 6/1023:25
JFK
-
LHR
1 stop15h 40m
LEVEL
Tue 20/1020:50
LHR
-
JFK
1 stop29h 50m
LEVEL
Deal found 15/4£394
Fri 13/1123:45
JFK
-
LGW
1 stop28h 35m
LEVEL
Tue 17/1119:35
LGW
-
JFK
1 stop31h 25m
LEVEL
Deal found 15/4£394
Thu 14/523:10
JFK
-
STN
2 stops20h 20m
Multiple Airlines
Tue 19/507:10
STN
-
JFK
2 stops19h 55m
Multiple Airlines
Deal found 13/4£395
Fri 24/400:30
JFK
-
STN
1 stop19h 10m
Multiple Airlines
Mon 27/406:20
STN
-
JFK
1 stop20h 50m
Multiple Airlines
Deal found 17/4£396
Sat 3/1018:20
JFK
-
LGW
Nonstop7h 00m
Norse Atlantic UK
Sun 11/1013:05
LGW
-
JFK
Nonstop7h 50m
Norse Atlantic UK
Deal found 13/4£396
Thu 15/1017:20
EWR
-
LHR
2 stops35h 15m
Scandinavian Airlines
Sun 18/1006:40
LHR
-
EWR
2 stops35h 35m
Scandinavian Airlines
Deal found 13/4£397
Thu 22/1018:20
JFK
-
LGW
Nonstop7h 00m
Norse Atlantic UK
Fri 23/1013:05
LGW
-
JFK
Nonstop7h 50m
Norse Atlantic UK
Deal found 14/4£397
Thu 1/1018:20
JFK
-
LGW
Nonstop7h 00m
Norse Atlantic UK
Thu 15/1013:05
LGW
-
JFK
Nonstop7h 50m
Norse Atlantic UK
Deal found 16/4£398
Tue 28/422:05
JFK
-
STN
2 stops21h 05m
Multiple Airlines
Mon 18/512:05
STN
-
JFK
2 stops34h 40m
Multiple Airlines
Deal found 15/4£398
Thu 1/1018:20
JFK
-
LGW
Nonstop7h 00m
Norse Atlantic UK
Sat 10/1013:05
LGW
-
JFK
Nonstop7h 50m
Norse Atlantic UK
Deal found 14/4£398
Fri 13/1123:45
JFK
-
LHR
1 stop28h 25m
LEVEL
Tue 17/1120:50
LHR
-
JFK
1 stop30h 10m
LEVEL
Deal found 15/4£399
Sun 10/500:30
JFK
-
LTN
1 stop33h 45m
Multiple Airlines
Tue 2/606:20
LTN
-
JFK
1 stop34h 05m
Multiple Airlines
Deal found 15/4£400

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 18 April 2026.

Round-trip from

£394

One-way from

£174

Popular in

June

Cheapest in

September

Average price

£607

Good round-trip deal

£679 or less

Good one-way deal

£418 or less
LEVEL
  • LEVEL
  • 6/10-20/10
  • 2 total stops
  • 45h 30m total
  • Pennsylvania to London
Search Deals
Norse Atlantic UK
  • Norse Atlantic UK
  • 18/9
  • Nonstop
  • 7h 00m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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

 
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 18 April 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 28/4

22:05-16:25

1 stop13h 20m

London Gatwick

Sat 24/10

10:00-17:45

1 stop12h 45m

£488

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 3/5

00:30-14:15

1 stop32h 45m

London Gatwick

Sat 9/5

07:30-22:10

1 stop19h 40m

£506
Fastest return journey

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 14/5

18:20-06:20

Nonstop7h 00m

London Gatwick

Fri 19/6

13:05-15:55

Nonstop7h 50m

£509

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 7/5

17:45-12:55

2 stops14h 10m

London Heathrow

Sun 10/5

19:50-13:15

1 stop22h 25m

£516

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Tue 12/5

18:20-06:20

Nonstop7h 00m

London Gatwick

Tue 2/6

05:55-11:25

1 stop34h 30m

£521

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 30/4

22:05-16:25

1 stop13h 20m

London Gatwick

Fri 15/5

17:25-17:45

1 stop29h 20m

£541

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Thu 7/5

18:20-06:20

Nonstop7h 00m

London Gatwick

Tue 12/5

06:40-22:30

1 stop20h 50m

£545

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 8/9

20:00-08:20

Nonstop7h 20m

London Heathrow

Tue 29/9

13:50-20:15

1 stop11h 25m

£549

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 28/4

09:10-21:25

Nonstop7h 15m

London Heathrow

Sun 10/5

06:50-13:05

1 stop11h 15m

£554

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sun 16/8

22:00-10:25

Nonstop7h 25m

London Heathrow

Tue 25/8

06:50-13:10

1 stop11h 20m

£556

Flights are sorted by cheapest return flights first.

Deals found on 15/4

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 June is currently the most expensive (average of £1,551). 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 18 April 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 18 April 2026.

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).

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?

    Air Europa, Norse Atlantic UK, and Scandinavian Airlines can get you from Pennsylvania to London in just under 7h. Your travel time can differ by up to 7h 10m. There are 3458 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 £203 on Kenya Airways. Other airlines that offer cheap prices include SAUDIA from £231 and British Airways from £304 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 New York John F Kennedy Intl - 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 Iberia (93%), Malaysia Airlines (93%) and American Airlines (90%).

  • What are the cheapest flights from Pennsylvania to London?

    Looking for the cheapest flight from Pennsylvania to London? While on average our users pay £619, our data indicates the cheapest price to be £203. The most popular route (Newark - London Heathrow), is priced around £427.

  • 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 June is currently the most expensive (average of £1,551). 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
Wembley
Croydon
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Chelmsford
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford

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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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Newark to Heathrow flights
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Dulles Intl to London City flights
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LaGuardia to Stansted flights
San Francisco to Gatwick flights
Philadelphia to Heathrow flights
Reagan-National to Gatwick flights
Newark to Edinburgh flights
Ontario to Heathrow flights
George Bush Intcntl to Heathrow flights
Baltimore to Gatwick flights
Minneapolis to Heathrow flights
San Francisco to Stansted flights
Boston to Edinburgh flights
San Francisco to London City flights
Newark to London City flights
Los Angeles to Luton flights
Tampa to Heathrow flights

Top 4 airlines flying from Pennsylvania to London

Discover the top 4 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 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£381Average£617FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£388Average£515FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£505Average£658FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£1,022Average£1,127FlexibilityNo 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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