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$135+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
Nov 16 — Nov 231
Sun 11/16
Sun 11/23
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 October 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$463
(Mytrip)

One-way from

$135
(Mytrip)

Popular in

June

Cheapest in

September

Average price

$680

Good round-trip deal

$673 or less

Good one-way deal

$458 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. 18% potential increase in price ($184 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 October 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 October 17, 2025.

This Mytrip deal was found by Cheapflights users on 10/14. 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.
Mon 11/1010:00 pmJFK - LHR
1 stop19h 40mTAP AIR PORTUGAL
Wed 11/198:15 amLHR - JFK
1 stop16h 50mTAP AIR PORTUGAL
Deal found 10/14$464
This lastminute.com deal was found by Cheapflights users on 10/14. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:25 pmJFK - LHR
1 stop9h 40mAer Lingus
Sun 10/2610:00 amLHR - JFK
1 stop11h 25mAer Lingus
Deal found 10/14$465
This Mytrip deal was found by Cheapflights users on 10/16. 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 11/153:30 pmLGA - LGW
2 stops14h 05mMultiple Airlines
Sat 11/229:30 pmLGW - LGA
2 stops23h 08mMultiple Airlines
Deal found 10/16$466
This Flightnetwork deal was found by Cheapflights users on 10/14. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:05 amJFK - LHR
1 stop16h 05mAir Canada
Wed 11/199:00 amLHR - JFK
2 stops16h 58mAir Canada
Deal found 10/14$466
This Mytrip deal was found by Cheapflights users on 10/15. 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 11/69:00 pmJFK - LTN
2 stops18h 30mMultiple Airlines
Sat 11/89:00 pmLTN - JFK
2 stops24h 09mMultiple Airlines
Deal found 10/15$466
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Wed 11/125:00 pmJFK - STN
1 stop9h 50mMultiple Airlines
Wed 11/198:30 amSTN - JFK
1 stop15h 55mMultiple Airlines
Deal found 10/15$466
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Wed 11/56:05 pmJFK - LGW
Nonstop6h 55mNorse Atlantic UK
Wed 11/191:00 pmLGW - JFK
Nonstop7h 55mNorse Atlantic UK
Deal found 10/15$466
This lastminute.com deal was found by Cheapflights users on 10/14. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:25 pmJFK - LHR
1 stop9h 40mAer Lingus
Sun 11/2310:00 amLHR - JFK
1 stop11h 25mAer Lingus
Deal found 10/14$467
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Wed 11/510:05 amJFK - LTN
2 stops28h 20mMultiple Airlines
Tue 11/188:50 pmLTN - JFK
2 stops21h 15mMultiple Airlines
Deal found 10/15$467
This Mytrip deal was found by Cheapflights users on 10/15. 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 12/69:10 pmJFK - STN
1 stop9h 25mMultiple Airlines
Fri 12/126:30 amSTN - JFK
1 stop17h 55mMultiple Airlines
Deal found 10/15$467
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Mon 11/1010:05 amJFK - LGW
2 stops22h 45mMultiple Airlines
Wed 11/194:00 pmLGW - JFK
2 stops26h 05mMultiple Airlines
Deal found 10/14$467
This Mytrip deal was found by Cheapflights users on 10/15. 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 12/54:20 pmLGA - LGW
2 stops13h 00mMultiple Airlines
Tue 12/99:40 pmLGW - LGA
2 stops22h 58mMultiple Airlines
Deal found 10/15$468

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 October 17, 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

Wed 12/3

6:05 pm-6:00 am

Nonstop6h 55m

London Gatwick

Sun 12/7

1:00 pm-3:55 pm

Nonstop7h 55m

$463

New YorkLondon

JFK - LGW

JFKLGW

New York John F Kennedy Intl

Wed 12/3

12:30 am-10:35 pm

1 stop17h 05m

London Gatwick

Tue 12/9

7:10 am-10:30 pm

1 stop20h 20m

$467

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Wed 11/19

5:30 pm-3:05 pm

2 stops16h 35m

London Stansted

Wed 12/3

6:30 am-8:10 pm

2 stops18h 40m

$472

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Mon 11/24

9:45 am-8:55 pm

3 stops30h 10m

London Stansted

Mon 12/1

8:40 am-1:05 pm

2 stops33h 25m

$480

New YorkLondon

JFK - STN

JFKSTN

New York John F Kennedy Intl

Tue 11/25

9:00 pm-7:40 pm

2 stops17h 40m

London Stansted

Wed 12/10

8:05 pm-2:15 pm

2 stops23h 10m

$482

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 11/16

10:35 am-7:10 am

1 stop15h 35m

London Heathrow

Sun 11/23

1:25 pm-9:33 pm

1 stop13h 08m

$483

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 12/4

4:50 pm-8:30 am

1 stop10h 40m

London Heathrow

Sun 12/7

9:00 am-4:40 pm

1 stop12h 40m

$503

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 11/11

9:40 am-9:40 pm

Nonstop7h 00m

London Heathrow

Thu 11/20

7:25 am-10:30 am

Nonstop8h 05m

$504

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 11/12

9:40 am-9:40 pm

Nonstop7h 00m

London Heathrow

Sun 11/16

7:45 am-11:00 am

Nonstop8h 15m

$504

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 11/8

9:59 am-10:00 pm

Nonstop7h 01m

London Heathrow

Thu 2/26

7:25 am-10:55 am

Nonstop8h 30m

$504

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

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, 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 $873). 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 October 17, 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 October 17, 2025.

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).

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, Air Canada, and United Airlines 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 40m. 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 Norse Atlantic UK ($154), JetBlue ($174), and TAP AIR PORTUGAL ($228).

  • 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 (83%), Iberia (79%) or Finnair (79%) 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 $1,779 for a flight from Pennsylvania to London. The cheapest flight overall is $410 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, 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 $873). 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
Hounslow
Hayes
Ilford
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
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Chipping Norton
Wembley
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Eastbourne

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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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Top 9 airlines flying from Pennsylvania to London

Discover the top 9 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 October 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$136Average$659FlexibilityNo cancel feeOn-time62%
DeltaCheapest$219Average$739FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$492Average$697FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$508Average$839FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$510Average$760FlexibilityNo cancel feeOn-time70%
FinnairCheapest$515Average$818FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$523Average$786FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$560Average$887FlexibilityNo cancel feeOn-time69%
IberiaCheapest$590Average$821FlexibilityNo cancel feeOn-time77%

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