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$155+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$496
(CrystalTravel)

One-way from

$155
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$672

Good round-trip deal

$698 or less

Good one-way deal

$434 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
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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. 19% potential increase in price ($188 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 November 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 November 26, 2025.

This FlightHub deal was found by Cheapflights users on 11/24. 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.
Tue 12/27:35 pmEWR - LHR
1 stop10h 15mIcelandair
Tue 12/98:35 pmLHR - EWR
1 stop26h 50mIcelandair
Deal found 11/24$496
This United Airlines deal was found by Cheapflights users on 11/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:10 amEWR - LHR
Nonstop7h 10mUnited Airlines
Thu 12/116:35 amLHR - EWR
1 stop17h 30mUnited Airlines
Deal found 11/24$497
This TAP AIR PORTUGAL deal was found by Cheapflights users on 11/25. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:55 pmEWR - LGW
1 stop10h 50mTAP AIR PORTUGAL
Wed 12/109:35 amLGW - EWR
1 stop17h 25mTAP AIR PORTUGAL
Deal found 11/25$497
This United Airlines deal was found by Cheapflights users on 11/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2710:00 pmEWR - LHR
Nonstop7h 25mUnited Airlines
Sun 3/811:10 amLHR - EWR
1 stop12h 55mUnited Airlines
Deal found 11/25$498
This Mytrip deal was found by Cheapflights users on 11/25. 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 11/275:40 pmEWR - LGW
1 stop11h 10mTAP AIR PORTUGAL
Thu 12/410:10 amLGW - EWR
1 stop16h 50mTAP AIR PORTUGAL
Deal found 11/25$498
This United Airlines deal was found by Cheapflights users on 11/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amEWR - LHR
1 stop23h 50mUnited Airlines
Mon 12/89:00 amLHR - EWR
1 stop32h 18mUnited Airlines
Deal found 11/26$499
This Mytrip deal was found by Cheapflights users on 11/24. 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.
Sat 11/2910:05 amJFK - LHR
1 stop16h 05mMultiple Airlines
Fri 12/511:10 amLHR - JFK
2 stops14h 48mMultiple Airlines
Deal found 11/24$499
This Mytrip deal was found by Cheapflights users on 11/24. 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.
Sat 12/61:35 amEWR - LGW
2 stops25h 05mMultiple Airlines
Thu 12/117:35 pmLGW - EWR
2 stops24h 55mMultiple Airlines
Deal found 11/24$499
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Thu 11/2710:00 pmEWR - LHR
1 stop13h 20mSWISS
Thu 12/49:00 amLHR - EWR
1 stop16h 30mSWISS
Deal found 11/25$500
This United Airlines deal was found by Cheapflights users on 11/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:45 amJFK - LHR
2 stops18h 35mUnited Airlines
Wed 12/39:00 amLHR - JFK
1 stop12h 40mUnited Airlines
Deal found 11/24$500
This Booking.com deal was found by Cheapflights users on 11/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2811:55 pmEWR - LGW
2 stops27h 25mTAP AIR PORTUGAL
Sun 12/710:40 amLGW - EWR
2 stops16h 20mTAP AIR PORTUGAL
Deal found 11/24$500
This Mytrip deal was found by Cheapflights users on 11/23. 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.
Sat 12/63:30 pmLGA - LHR
1 stop12h 00mMultiple Airlines
Fri 1/161:25 pmLHR - LGA
1 stop10h 37mMultiple Airlines
Deal found 11/23$501

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 November 26, 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 - LGW

JFKLGW

New York John F Kennedy Intl

Tue 5/12

6:20 pm-6:20 am

Nonstop7h 00m

London Gatwick

Fri 5/22

1:05 pm-3:55 pm

Nonstop7h 50m

$500

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 12/8

10:30 am-7:10 am

1 stop15h 40m

London Heathrow

Thu 12/11

6:50 am-1:30 pm

1 stop11h 40m

$501

New YorkLondon

JFK - LTN

JFKLTN

New York John F Kennedy Intl

Mon 3/9

6:00 pm-8:35 am

1 stop10h 35m

London Luton

Sun 3/15

1:10 pm-8:25 pm

1 stop11h 15m

$501

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 1/8

8:00 pm-8:25 am

Nonstop7h 25m

London Heathrow

Mon 1/12

12:05 pm-8:30 pm

1 stop13h 25m

$501

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 2/12

10:30 am-7:10 am

1 stop15h 40m

London Heathrow

Tue 2/17

12:05 pm-8:30 pm

1 stop13h 25m

$501

NewarkLondon

EWR - LHR

EWRLHR

Newark

Tue 2/17

5:30 pm-8:45 am

1 stop10h 15m

London Heathrow

Wed 3/4

1:00 pm-11:06 pm

1 stop15h 06m

$503

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 2/6

9:35 pm-9:30 am

Nonstop6h 55m

London Heathrow

Wed 2/25

4:30 pm-7:35 pm

Nonstop8h 05m

$503

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sun 2/8

6:35 pm-6:30 am

Nonstop6h 55m

London Heathrow

Mon 2/23

10:40 am-1:50 pm

Nonstop8h 10m

$503

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 2/6

8:05 am-8:00 pm

Nonstop6h 55m

London Heathrow

Fri 2/20

8:20 am-11:20 am

Nonstop8h 00m

$503

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Sun 2/22

6:05 pm-6:00 am

Nonstop6h 55m

London Gatwick

Sun 3/1

1:00 pm-3:55 pm

Nonstop7h 55m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

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, July is the cheapest month in which you can book a flight from Pennsylvania to London (average of $136). Flying from Pennsylvania to London in May is currently the most expensive (average of $638). 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 November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Pennsylvania to London at noon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Pennsylvania to London?

Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to London. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Pennsylvania to London flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 26, 2025.

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, United Airlines, and British Airways fly from Pennsylvania to London in about 6h 55m. The time it takes to get you to your destination can typically vary by up to 8h 45m. 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 United Airlines ($174), Norse Atlantic UK ($174), and Delta ($179).

  • 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 LaGuardia - London Heathrow.

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

    Consider Malaysia Airlines (84%), American Airlines (83%) or Iberia (83%) 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 $2,069 for a flight from Pennsylvania to London. The cheapest flight overall is $366 while the most popular route, (New York John F Kennedy Intl - London Heathrow) is currently priced at $387.

  • 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, July is the cheapest month in which you can book a flight from Pennsylvania to London (average of $136). Flying from Pennsylvania to London in May is currently the most expensive (average of $638). 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
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Hayes
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Harrow
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Dartford
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Winchester
Croydon
Orpington
Watford
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Wembley
Folkestone
Eastbourne
Sutton
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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Tampa to Heathrow flights
Boston to Luton flights
John F Kennedy Intl to Manchester flights
Newark to Edinburgh flights
Raleigh to Heathrow flights
San Francisco to London City flights
Los Angeles to Stansted flights

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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$136Average$654FlexibilityNo cancel feeOn-time62%
DeltaCheapest$219Average$739FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$492Average$749FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$505Average$846FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$509Average$762FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$790FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$523Average$784FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$560Average$890FlexibilityNo cancel feeOn-time69%
IberiaCheapest$579Average$826FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$647Average$1,083FlexibilityNo cancel feeOn-time67%

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