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$191+ Cheap flights from Heathrow (LHR) to Pennsylvania

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
Jul 25 — Aug 11
Sat 7/25
Sat 8/1
1 adult, Economy
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Cheap flight deals from Heathrow to Pennsylvania

Cheapest flights from Heathrow to Pennsylvania
Explore the most affordable flight options available from Heathrow to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.

This Virgin Atlantic deal was found by Cheapflights users on 6/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:40 am
LHR
-
PIT
1 stop13h 21m
Virgin Atlantic
Tue 10/135:11 pm
PIT
-
LHR
1 stop10h 39m
Virgin Atlantic
Deal found 6/24$191
This Virgin Atlantic deal was found by Cheapflights users on 6/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:15 am
LHR
-
PIT
1 stop14h 15m
Virgin Atlantic
Sun 8/235:04 pm
PIT
-
LHR
1 stop10h 46m
Virgin Atlantic
Deal found 6/24$509
This Virgin Atlantic deal was found by Cheapflights users on 6/25. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:45 am
LHR
-
PIT
2 stops17h 19m
Virgin Atlantic
Wed 7/221:57 pm
PIT
-
LHR
1 stop11h 28m
Virgin Atlantic
Deal found 6/25$577
This The Travel House deal was found by Cheapflights users on 6/24. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:50 am
LHR
-
IAD
1 stop11h 40m
Lufthansa
Wed 7/155:42 pm
IAD
-
LHR
1 stop10h 38m
Lufthansa
Deal found 6/24$591
This TravelUp deal was found by Cheapflights users on 6/24. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:05 pm
LHR
-
DCA
1 stop10h 56m
British Airways
Thu 7/166:30 am
DCA
-
LHR
1 stop10h 10m
British Airways
Deal found 6/24$591
This The Travel House deal was found by Cheapflights users on 6/23. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:50 am
LHR
-
IAD
1 stop11h 40m
Lufthansa
Thu 9/176:35 pm
IAD
-
LHR
Nonstop7h 20m
Lufthansa
Deal found 6/23$592
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/19:30 am
LHR
-
IAD
1 stop11h 35m
United Airlines
Sun 8/23:45 pm
IAD
-
LHR
1 stop9h 45m
United Airlines
Deal found 6/24$593
This The Travel House deal was found by Cheapflights users on 6/23. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:50 am
LHR
-
IAD
1 stop11h 40m
Lufthansa
Wed 7/158:25 am
IAD
-
LHR
1 stop16h 30m
Lufthansa
Deal found 6/23$594
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/19:30 am
LHR
-
IAD
1 stop11h 35m
United Airlines
Thu 7/3012:35 pm
IAD
-
LHR
1 stop12h 20m
United Airlines
Deal found 6/24$595
This Air Canada deal was found by Cheapflights users on 6/24. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:00 am
LHR
-
DCA
2 stops15h 58m
Air Canada
Sun 2/1411:00 am
DCA
-
LHR
1 stop15h 10m
Air Canada
Deal found 6/24$595
This lol.travel deal was found by Cheapflights users on 6/23. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:30 am
LHR
-
IAD
1 stop11h 54m
Air Canada
Sat 7/115:06 pm
IAD
-
LHR
1 stop10h 29m
Air Canada
Deal found 6/23$596
This CheapOair deal was found by Cheapflights users on 6/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am
LHR
-
DCA
2 stops17h 15m
Air Canada
Tue 9/2912:40 pm
DCA
-
LHR
2 stops12h 50m
Air Canada
Deal found 6/24$596

Find flight deals from Heathrow to Pennsylvania

Keep the following information in mind while searching for Heathrow to Pennsylvania flight deals. Data was last updated June 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$591
(United Airlines)

One-way from

$360
(Virgin Atlantic)

Popular in

July

Cheapest in

September

Average price

$947

Good round-trip deal

$824 or less

Good one-way deal

$609 or less
Provider with most accurate pricing for London (LON)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Philadelphia flights.
Search Deals
From London Heathrow to Pennsylvania
Search Deals
One-way flight from London Heathrow to Pennsylvania
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Pennsylvania.
Search Deals
Price to beat on a one-way flight from London Heathrow to Pennsylvania.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Pennsylvania 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 June 25, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPittsburgh

LHR - PIT

LHRPIT

London Heathrow

Tue 8/11

11:15 am-8:30 pm

1 stop14h 15m

Pittsburgh

Sun 8/23

5:04 pm-8:50 am

1 stop10h 46m

$509

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 8/27

8:45 am-4:45 pm

1 stop13h 00m

Washington, D.C. Dulles Intl

Mon 8/31

10:15 pm-10:40 am

Nonstop7h 25m

$614

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 9/13

12:15 pm-3:30 pm

Nonstop8h 15m

Washington, D.C. Dulles Intl

Fri 9/25

6:35 pm-6:55 am

Nonstop7h 20m

$621

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 10/29

4:20 pm-9:15 pm

Nonstop8h 55m

Washington, D.C. Dulles Intl

Thu 11/5

10:15 pm-10:50 am

Nonstop7h 35m

$621

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 9/9

9:30 am-3:40 pm

1 stop11h 10m

Washington, D.C. Reagan-National

Wed 9/16

4:30 pm-7:15 am

1 stop9h 45m

$621

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 7/9

9:15 am-4:13 pm

1 stop11h 58m

Washington, D.C. Reagan-National

Sun 7/19

3:23 pm-6:55 am

1 stop10h 32m

$625

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 9/1

3:00 pm-9:51 pm

1 stop11h 51m

Washington, D.C. Reagan-National

Sun 9/13

3:17 pm-6:55 am

1 stop10h 38m

$626

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 8/31

9:15 am-3:58 pm

1 stop11h 43m

Washington, D.C. Reagan-National

Sat 9/19

8:24 pm-12:15 pm

1 stop10h 51m

$626

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 7/10

9:15 am-4:13 pm

1 stop11h 58m

Washington, D.C. Reagan-National

Wed 7/22

5:00 pm-8:00 am

1 stop10h 00m

$627

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Sat 10/3

8:05 pm-4:35 pm

1 stop25h 30m

New York John F Kennedy Intl

Sun 10/11

4:15 pm-11:20 am

1 stop14h 05m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Pennsylvania

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

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

Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Pennsylvania (average of $283). Flying from London Heathrow Airport to Pennsylvania in June is currently the most expensive (average of $667). 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 LHR to PA?

Find hourly flight availability from Heathrow to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 25, 2026.

When flying from London Heathrow Airport to Pennsylvania, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Pennsylvania

Explore weekly flight availability from Heathrow to Pennsylvania. 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 June 25, 2026.

The most flights from LHR to USPA 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 to fly round-trip from London Heathrow Airport to Pennsylvania?

How far ahead should I book a flight from London Heathrow Airport to Pennsylvania?

The price you pay for your flight from London Heathrow Airport to Pennsylvania may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pennsylvania. Reviews last updated June 25, 2026.
See what other customers who have flown with Aer Lingus,American Airlines, andBritish Airways from London Heathrow Airport to Pennsylvania have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,626 reviews

Boarding

7.4

Food

6.6

Crew

8.1

Overall

7.3

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,626 reviews
Aer Lingus
7.3
Good
1,626 reviews

Boarding

7.4

Food

6.6

Crew

8.1

Overall

7.3

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
American Airlines
7.1
Good
11,754 reviews
Aer Lingus
7.3
Good
1,626 reviews

Boarding

7.4

Food

6.6

Crew

8.1

Overall

7.3

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
British Airways
6.7
Okay
8,070 reviews
Aer Lingus
7.3
Good
1,626 reviews

Boarding

7.4

Food

6.6

Crew

8.1

Overall

7.3

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

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

    Departing from London Heathrow Airport to Pennsylvania will take you 11h 58m. London Heathrow Airport and Pennsylvania are separated by a distance of 3652 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $483. However, be on the lookout for offers from American Airlines and Finnair, as they are both options that can get you from London Heathrow Airport to Pennsylvania for a low price.

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

    The most popular route from London Heathrow Airport to Pennsylvania is London Heathrow - New York John F Kennedy Intl. You may also consider London Heathrow - Newark or London Heathrow - New York LaGuardia.

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

    Before booking your flight to Pennsylvania from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Malaysia Airlines (89%), American Airlines (85%), Finnair( 85%).

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

    The cheapest flight price from London Heathrow Airport to Pennsylvania is $587. On average you can expect to pay $1,592. The most popular route, (London Heathrow - New York John F Kennedy Intl), can usually be booked for $111.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Pennsylvania (average of $283). Flying from London Heathrow Airport to Pennsylvania in June is currently the most expensive (average of $667). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Heathrow to Pennsylvania

Discover the top 3 airlines that operate flights from Heathrow to Pennsylvania. 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 June 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$610Average$814FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$614Average$919FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$670Average$1,017FlexibilityNo cancel feeOn-timeN/A

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