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$185+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Booking.com deal was found by Cheapflights users on 12/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:45 pmEWR - LHR
1 stop9h 20mAer Lingus
Wed 1/288:50 amLHR - EWR
1 stop12h 25mAer Lingus
Deal found 12/16$493
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:51 pmEWR - LHR
1 stop18h 44mUnited Airlines
Mon 1/1212:05 pmLHR - EWR
1 stop13h 25mUnited Airlines
Deal found 12/16$497
This CheapOair deal was found by Cheapflights users on 12/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:00 pmEWR - LHR
1 stop26h 35mMultiple Airlines
Sun 1/118:05 pmLHR - EWR
1 stop22h 50mMultiple Airlines
Deal found 12/17$498
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/307:29 pmEWR - LHR
1 stop30h 11mUnited Airlines
Sat 1/109:00 amLHR - EWR
1 stop32h 18mUnited Airlines
Deal found 12/17$501
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Wed 12/313:20 pmLGA - LHR
1 stop10h 50mMultiple Airlines
Sat 1/1011:10 amLHR - LGA
1 stop12h 53mMultiple Airlines
Deal found 12/16$502
This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:15 amJFK - LHR
Nonstop6h 55mBritish Airways
Tue 2/106:00 pmLHR - JFK
Nonstop8h 05mBritish Airways
Deal found 12/16$503
This JetBlue deal was found by Cheapflights users on 12/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:10 pmJFK - LHR
Nonstop7h 20mJetBlue
Tue 1/137:25 amLHR - JFK
Nonstop8h 21mJetBlue
Deal found 12/17$504
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 pmEWR - LHR
Nonstop7h 20mUnited Airlines
Wed 1/286:50 amLHR - EWR
1 stop11h 40mUnited Airlines
Deal found 12/16$505
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amEWR - LHR
1 stop24h 15mUnited Airlines
Sat 1/109:00 amLHR - EWR
1 stop32h 18mUnited Airlines
Deal found 12/16$506
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/291:00 pmEWR - LHR
1 stop26h 35mUnited Airlines
Sat 1/319:00 amLHR - EWR
2 stops17h 44mUnited Airlines
Deal found 12/17$507
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:05 amJFK - LHR
1 stop16h 05mUnited Airlines
Fri 1/96:50 amLHR - JFK
1 stop11h 30mUnited Airlines
Deal found 12/16$508
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:00 pmJFK - LHR
Nonstop7h 15mDelta
Wed 1/146:30 amLHR - JFK
1 stop11h 50mDelta
Deal found 12/17$509

Find flight deals from Pennsylvania to Heathrow

Keep the following information in mind while searching for Pennsylvania to Heathrow flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$492
(Kiwi.com)

One-way from

$185
(Mytrip)

Popular in

June

Cheapest in

September

Average price

$900

Good round-trip deal

$676 or less

Good one-way deal

$451 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 ($188 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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.
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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 December 18, 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

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 1/9

5:30 pm-2:35 pm

2 stops16h 05m

London Heathrow

Sun 1/11

6:40 am-1:25 pm

1 stop11h 45m

$497

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 3/11

10:41 am-9:40 pm

Nonstop6h 59m

London Heathrow

Sat 3/21

8:05 am-12:29 pm

Nonstop8h 24m

$504

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 1/31

9:10 pm-9:30 am

Nonstop7h 20m

London Heathrow

Sat 2/7

8:05 am-11:29 am

Nonstop8h 24m

$504

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 3/17

10:14 pm-9:30 am

Nonstop7h 16m

London Heathrow

Wed 3/25

7:25 am-11:46 am

Nonstop8h 21m

$504

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 1/15

9:10 am-9:20 pm

Nonstop7h 10m

London Heathrow

Tue 1/20

9:00 am-8:30 pm

1 stop16h 30m

$505

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Mon 2/2

9:10 pm-9:30 am

Nonstop7h 20m

London Heathrow

Wed 2/11

12:20 pm-3:52 pm

Nonstop8h 32m

$505

NewarkLondon

EWR - LHR

EWRLHR

Newark

Mon 12/29

1:00 pm-8:35 pm

1 stop26h 35m

London Heathrow

Sat 1/31

9:00 am-9:44 pm

2 stops17h 44m

$507

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 2/27

6:00 pm-6:20 am

Nonstop7h 20m

London Heathrow

Fri 3/6

6:50 am-1:30 pm

1 stop11h 40m

$513

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 3/14

9:25 am-8:35 pm

Nonstop7h 10m

London Heathrow

Fri 3/20

9:00 am-9:30 pm

1 stop16h 30m

$515

NewarkLondon

EWR - LHR

EWRLHR

Newark

Fri 3/13

9:25 am-8:35 pm

Nonstop7h 10m

London Heathrow

Fri 3/20

12:05 pm-9:30 pm

1 stop13h 25m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 $824). 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 December 18, 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 24% 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 Wednesday at noon 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 December 18, 2025.

The most flights from USPA to LHR are scheduled on a Thursday (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 6h 59m. 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 $131 on JetBlue. Other airlines that offer cheap prices include Icelandair from $161 and TAP AIR PORTUGAL from $198 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 Finnair (90%), Malaysia Airlines (89%) and American Airlines (87%).

  • 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 $1,899. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for $388.

  • 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 $824). 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
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley

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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
John F Kennedy Intl to London City flights
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Newark to Gatwick flights
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Los Angeles to Heathrow flights
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O'Hare Intl to Heathrow flights
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Newark to London City flights
Newark to Stansted flights
Newark to Luton flights
Boston to Gatwick flights
Atlanta to Heathrow flights
Miami to Heathrow flights
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Dulles Intl to Gatwick flights
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Orlando to Heathrow flights
Boston to London City flights
Dulles Intl to London City flights
Denver to Heathrow flights
Los Angeles to Gatwick flights
Philadelphia to Heathrow flights
Los Angeles to London City flights
Minneapolis to Heathrow flights
O'Hare Intl to Gatwick flights
Baltimore to Gatwick flights
Dulles Intl to Stansted flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to London City flights
San Francisco to Gatwick flights
Boston to Stansted flights
Tampa to Heathrow flights
Austin to Heathrow flights
Dallas/Fort Worth to Gatwick flights
San Francisco to London City flights
Orlando to Gatwick flights
Charlotte to Heathrow flights
Detroit to Heathrow flights
Seattle to Gatwick 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$219Average$755FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$295Average$674FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$492Average$760FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$508Average$845FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$508Average$783FlexibilityNo cancel feeOn-time70%
FinnairCheapest$514Average$926FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$522Average$790FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$560Average$888FlexibilityNo cancel feeOn-time69%
IberiaCheapest$602Average$840FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$647Average$1,083FlexibilityNo cancel feeOn-time67%

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