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$145+ Cheap flights from Pennsylvania to Heathrow (LHR)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find flight deals from Pennsylvania to Heathrow

Cheapest flights from Pennsylvania to Heathrow
Explore the most affordable flight options available from Pennsylvania to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 12/14:25 pmJFK - LHR
1 stop20h 25mSWISS
Mon 12/86:00 amLHR - JFK
1 stop12h 05mSWISS
Deal found 11/2$477
This Gotogate deal was found by Cheapflights users on 11/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/173:20 pmLGA - LHR
1 stop10h 50mAir Canada
Mon 11/241:25 pmLHR - LGA
1 stop10h 38mAir Canada
Deal found 11/1$478
This Gotogate deal was found by Cheapflights users on 11/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/175:00 pmJFK - LHR
1 stop10h 05mAer Lingus
Mon 11/2410:00 amLHR - JFK
1 stop11h 25mAer Lingus
Deal found 11/1$478
This Gotogate deal was found by Cheapflights users on 11/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/910:05 amJFK - LHR
2 stops18h 15mMultiple Airlines
Sun 11/166:00 amLHR - JFK
1 stop12h 05mMultiple Airlines
Deal found 11/1$479
This Booking.com deal was found by Cheapflights users on 11/2. 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.
Thu 12/45:00 pmJFK - LHR
1 stop10h 05mAer Lingus
Sun 12/710:00 amLHR - JFK
1 stop11h 25mAer Lingus
Deal found 11/2$480
This Booking.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/25:00 pmJFK - LHR
1 stop12h 10mAer Lingus
Sun 12/710:00 amLHR - JFK
1 stop11h 25mAer Lingus
Deal found 11/1$481
This Booking.com deal was found by Cheapflights users on 10/31. 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.
Thu 12/43:30 pmLGA - LHR
1 stop12h 00mMultiple Airlines
Tue 12/96:50 amLHR - LGA
2 stops15h 09mMultiple Airlines
Deal found 10/31$482
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Tue 11/46:10 pmJFK - LHR
1 stop14h 55mAustrian Airlines
Mon 11/107:25 pmLHR - JFK
1 stop23h 50mAustrian Airlines
Deal found 10/31$482
This Netflights deal was found by Cheapflights users on 11/2. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:20 amJFK - LHR
Nonstop6h 50mVirgin Atlantic
Sun 12/78:00 pmLHR - JFK
Nonstop7h 55mVirgin Atlantic
Deal found 11/2$483
This Booking.com deal was found by Cheapflights users on 11/2. 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.
Wed 11/127:01 pmJFK - LHR
Nonstop6h 54mVirgin Atlantic
Wed 11/198:40 amLHR - JFK
1 stop12h 05mVirgin Atlantic
Deal found 11/2$484
This Gotogate deal was found by Cheapflights users on 11/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:01 pmJFK - LHR
Nonstop6h 54mVirgin Atlantic
Mon 11/2410:00 amLHR - JFK
1 stop10h 45mVirgin Atlantic
Deal found 11/2$485
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/64:25 pmJFK - LHR
1 stop10h 40mMultiple Airlines
Fri 11/147:25 pmLHR - JFK
1 stop23h 50mMultiple Airlines
Deal found 11/2$487

Cheap flight deals from Pennsylvania to Heathrow

Keep the following information in mind while searching for Pennsylvania to Heathrow flight deals. Data was last updated November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$477
(Kiwi.com)

One-way from

$145
(Netflights)

Popular in

June

Cheapest in

September

Average price

$704

Good round-trip deal

$708 or less

Good one-way deal

$462 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
Search Deals
From Pennsylvania to London Heathrow
Search Deals
One-way flight from Pennsylvania to London Heathrow
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($190 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Pennsylvania to London Heathrow.
Search Deals
Price to beat on a one-way flight from Pennsylvania to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Heathrow 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 2, 2025.
Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Pennsylvania

Fly to

Heathrow

Route

Depart

Return

Price

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 1/14

11:45 pm-6:00 pm

1 stop13h 15m

London Heathrow

Sun 1/18

9:55 am-10:00 pm

1 stop17h 05m

$485

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 12/2

10:05 am-7:10 am

1 stop16h 05m

London Heathrow

Sat 12/6

9:00 am-4:40 pm

1 stop12h 40m

$495

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Thu 12/11

6:00 am-10:50 am

1 stop23h 50m

London Heathrow

Sun 12/14

1:25 pm-2:42 pm

1 stop30h 17m

$500

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 12/3

9:09 pm-9:30 am

Nonstop7h 21m

London Heathrow

Sun 12/7

7:45 am-10:57 am

Nonstop8h 12m

$502

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 12/5

8:45 am-8:45 pm

Nonstop7h 00m

London Heathrow

Tue 1/20

12:20 pm-3:52 pm

Nonstop8h 32m

$502

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 11/17

8:45 am-8:45 pm

Nonstop7h 00m

London Heathrow

Mon 11/24

12:20 pm-3:51 pm

Nonstop8h 31m

$502

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 1/24

8:25 am-8:35 pm

Nonstop7h 10m

London Heathrow

Tue 1/27

12:05 pm-8:30 pm

1 stop13h 25m

$505

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 1/15

8:25 am-8:35 pm

Nonstop7h 10m

London Heathrow

Thu 1/22

12:05 pm-8:30 pm

1 stop13h 25m

$505

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 1/12

8:25 am-8:35 pm

Nonstop7h 10m

London Heathrow

Sun 1/18

12:05 pm-8:30 pm

1 stop13h 25m

$505

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 12/4

8:20 am-8:10 pm

Nonstop6h 50m

London Heathrow

Mon 12/15

6:30 am-1:15 pm

1 stop11h 45m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

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

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of $483). Flying from Pennsylvania to London Heathrow Airport 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 LHR?

Find hourly flight availability from Pennsylvania to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

One of the essential ways to save on airfare from Pennsylvania to London Heathrow Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% on airfare.

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

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

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

Weekly flight availability from Pennsylvania to London Heathrow Airport

Explore weekly flight availability from Pennsylvania to Heathrow. 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 2, 2025.

The most flights from USPA to LHR are scheduled on a Sunday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Pennsylvania to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Heathrow. 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 Heathrow Airport?

    Departing from Pennsylvania to London Heathrow Airport will take you 7h 21m. There are 3440 mi between Pennsylvania and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    One-way options have recently been found by users for as low as $174 on Delta. Other airlines that offer cheap prices include JetBlue from $174 and United Airlines from $234 one-way.

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

    Most travelers choose New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow or New York LaGuardia - London Heathrow when deciding on the best route from Pennsylvania to London Heathrow Airport.

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

    The top 3 most reliable airlines when flying from Pennsylvania to London Heathrow Airport are Malaysia Airlines (83%), Iberia (82%) and British Airways (81%).

  • What are the cheapest flights from Pennsylvania to London Heathrow Airport?

    The cheapest flight price from Pennsylvania to London Heathrow Airport is $411. On average you can expect to pay $1,788. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for $389.

  • Can I find deals for flights from Pennsylvania to Heathrow that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Heathrow.

  • Can I find deals for business class flights from Pennsylvania to Heathrow?

    Yes. Cheapflights offers flight deals from Pennsylvania to Heathrow 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 Heathrow Airport?

    Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of $483). Flying from Pennsylvania to London Heathrow Airport 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pennsylvania to Heathrow

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
John F Kennedy Intl to Gatwick flights
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O'Hare Intl to Heathrow flights
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Boston to Gatwick flights
Boston to London City flights
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Orlando to Heathrow flights
Dulles Intl to Gatwick flights
Los Angeles to Gatwick flights
Philadelphia to Heathrow flights
Los Angeles to London City flights
Dulles Intl to London City flights
Hobby to Heathrow flights
San Francisco to Gatwick flights
Boston to Stansted flights
O'Hare Intl to Gatwick flights
Baltimore to Gatwick flights
Denver to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to London City flights
Boston to Luton flights
Tampa to Heathrow flights
San Francisco to London City flights
Minneapolis to Heathrow flights
Dulles Intl to Stansted flights
Charlotte to Heathrow flights
Detroit to Heathrow flights
LaGuardia to London City flights
Sky Harbor Intl to Heathrow flights

Top 10 airlines flying from Pennsylvania to Heathrow

Discover the top 10 airlines that operate flights from Pennsylvania to Heathrow. 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$219Average$739FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$492Average$746FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$503Average$669FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$505Average$873FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$509Average$780FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$815FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$523Average$786FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$560Average$881FlexibilityNo cancel feeOn-time69%
IberiaCheapest$583Average$823FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$647Average$951FlexibilityNo cancel feeOn-time67%

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