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Cheap flights from London Heathrow Airport to Pennsylvania from £329

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 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Pennsylvania

Enter your travel dates to find the best prices.

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 4 August 2026.

Wed 9/913:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Sat 19/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 2/8£431
Sun 18/1009:30
LHR
-
IAD
1 stop11h 35m
United Airlines
Sat 31/1016:30
IAD
-
LHR
1 stop14h 50m
United Airlines
Deal found 3/8£432
Wed 16/908:40
LHR
-
DCA
2 stops16h 19m
Air Canada
Wed 23/912:55
DCA
-
LHR
2 stops16h 05m
Air Canada
Deal found 3/8£432
Mon 31/821:25
LHR
-
IAD
1 stop29h 50m
Icelandair
Thu 10/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 31/7£433
Sun 6/909:15
LHR
-
DCA
1 stop11h 43m
British Airways
Sun 27/916:59
DCA
-
LHR
1 stop10h 01m
British Airways
Deal found 3/8£433
Thu 5/1109:00
LHR
-
IAD
2 stops16h 10m
Air Canada
Wed 18/1109:55
IAD
-
LHR
2 stops16h 15m
Air Canada
Deal found 3/8£433
Fri 2/1009:30
LHR
-
DCA
1 stop11h 10m
Air Canada
Fri 9/1012:40
DCA
-
LHR
2 stops12h 50m
Air Canada
Deal found 3/8£433
Fri 4/913:05
LHR
-
IAD
1 stop14h 10m
Icelandair
Thu 10/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 2/8£434
Thu 17/906:00
LHR
-
DCA
2 stops17h 15m
Air Canada
Thu 24/912:55
DCA
-
LHR
2 stops16h 05m
Air Canada
Deal found 3/8£434
Mon 31/806:00
LHR
-
IAD
1 stop13h 35m
Austrian Airlines
Mon 7/922:15
IAD
-
LHR
Nonstop7h 25m
Austrian Airlines
Deal found 31/7£435
Thu 3/921:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Sun 13/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 2/8£436
Thu 3/914:05
LHR
-
DCA
1 stop12h 43m
Air Canada
Thu 10/912:55
DCA
-
LHR
1 stop12h 35m
Air Canada
Deal found 3/8£436

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 4 August 2026.

Round-trip from

£431

One-way from

£329

Popular in

July

Cheapest in

September

Average price

£751

Good round-trip deal

£671 or less

Good one-way deal

£435 or less
Icelandair
  • Icelandair
  • 9/9-19/9
  • 2 total stops
  • 21h 40m total
  • London to Pennsylvania
Search Deals
Icelandair
  • Icelandair
  • 25/12
  • 1 total stop
  • 11h 15m total
  • London to Pennsylvania
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£76 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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

 
Customise 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 858,174 searches. Data last updated 4 August 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 return flight

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 6/11

09:00-20:10

2 stops16h 10m

Washington, D.C. Dulles Intl

Tue 10/11

12:39-07:10

2 stops13h 31m

£433

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 13/9

06:30-15:10

1 stop13h 40m

Washington, D.C. Dulles Intl

Mon 14/9

22:05-10:40

Nonstop7h 35m

£440

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 1/12

13:10-21:20

1 stop13h 10m

Washington, D.C. Reagan-National

Thu 10/12

18:30-09:10

1 stop9h 40m

£444

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Sat 24/10

09:30-19:36

1 stop15h 06m

New York LaGuardia

Wed 28/10

17:35-07:10

1 stop9h 35m

£445

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 4/9

09:30-16:05

1 stop11h 35m

Washington, D.C. Dulles Intl

Mon 7/9

18:30-06:55

Nonstop7h 25m

£445

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Tue 1/9

14:05-21:30

1 stop12h 25m

New York LaGuardia

Mon 7/9

15:30-10:00

1 stop13h 30m

£445

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 24/9

08:30-15:10

1 stop11h 40m

Washington, D.C. Dulles Intl

Wed 28/10

19:20-06:40

Nonstop7h 20m

£447

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Sun 18/10

07:30-18:41

2 stops16h 11m

New York LaGuardia

Sun 25/10

06:00-06:40

1 stop20h 40m

£448

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 1/12

12:05-15:40

Nonstop8h 35m

Washington, D.C. Dulles Intl

Thu 10/12

22:15-10:50

Nonstop7h 35m

£449

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Mon 31/8

06:30-12:29

1 stop10h 59m

New York John F Kennedy Intl

Sun 6/9

23:40-12:05

Nonstop7h 25m

£449

Flights are sorted by cheapest return flights first.

Deals found on 31/7

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 return 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Pennsylvania (average of £555). Flying from London Heathrow Airport to Pennsylvania in July is currently the most expensive (average of £818). 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 4 August 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 4 August 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 for a return flight from London Heathrow Airport to Pennsylvania?

Airfare is below average for this route at the moment.
London Heathrow Airport to Pennsylvania flights typically cost between £660 and £891 in September.
The cheapest return price found within the last 5 days was £588 on Finnair (2 Sept–9 Sept).

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Pennsylvania, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 4 August 2026.
Read reviews from past customers who have flown with Finnair,Aer Lingus, andJetBlue from London Heathrow Airport to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,426 reviews
Check prices

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,426 reviews
Finnair
7.7
Good
1,426 reviews
Check prices

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Aer Lingus
7.3
Good
1,685 reviews
Finnair
7.7
Good
1,426 reviews
Check prices

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
JetBlue
7.2
Good
3,027 reviews
Finnair
7.7
Good
1,426 reviews
Check prices

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
American Airlines
7.1
Good
11,845 reviews
Finnair
7.7
Good
1,426 reviews
Check prices

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
8,148 reviews
Finnair
7.7
Good
1,426 reviews
Check prices

Entertainment

6.9

Boarding

7.7

Food

6.7

Comfort

7.4

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

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?

    Air Canada, Lufthansa, and British Airways can get you from London Heathrow Airport to Pennsylvania in just under 13h 10m. Your travel time can differ by up to 3h. The distance from London Heathrow Airport to Pennsylvania is about 3652 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as £322 on SAUDIA. Other airlines that offer cheap prices include Air India from £405 and Emirates from £488 one-way.

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

    The most popular flight routes from London Heathrow Airport to Pennsylvania are London Heathrow - New York John F Kennedy Intl, London Heathrow - Newark and 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 (86%), American Airlines (82%), Finnair( 82%).

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

    Looking for the cheapest flight from London Heathrow Airport to Pennsylvania? While on average our users pay £2,073, our data indicates the cheapest price to be £403. The most popular route (London Heathrow - New York John F Kennedy Intl), is priced around £328.

  • 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 holiday 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Pennsylvania (average of £555). Flying from London Heathrow Airport to Pennsylvania in July is currently the most expensive (average of £818). 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

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Alternative routes for Heathrow to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Gatwick to Newark flights
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London City to John F Kennedy Intl flights
Heathrow to Orlando flights
Luton to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Heathrow to Miami flights
Heathrow to Los Angeles flights
Stansted to Newark flights
Luton to Newark flights
Heathrow to Dallas/Fort Worth flights
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Heathrow to O'Hare Intl flights
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Stansted to Orlando flights
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Heathrow to Atlanta flights
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Heathrow to Dulles Intl flights
Stansted to Miami flights
London City to Miami flights
Heathrow to Hobby flights
Stansted to Los Angeles flights
London City to Orlando flights
Heathrow to Baltimore flights
Luton to Los Angeles flights
Heathrow to Ontario flights
Heathrow to George Bush Intcntl flights
Gatwick to Boston flights
Gatwick to San Francisco flights
Heathrow to Tampa flights
Luton to Miami flights
Heathrow to Denver flights
Gatwick to Dallas/Fort Worth flights
London City to San Francisco flights
Gatwick to O'Hare Intl flights
Stansted to San Francisco flights
London City to O'Hare Intl flights
Stansted to O'Hare Intl flights
Heathrow to Love Field flights
Stansted to Dallas/Fort Worth flights

Top 10 airlines flying from Heathrow to Pennsylvania

Discover the top 10 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 858,174 searches. Data last updated 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£210Average£657FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£254Average£464FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£334Average£708FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£403Average£657FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£418Average£612FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£433Average£592FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£444Average£704FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£447Average£642FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£452Average£665FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£463Average£752FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Pennsylvania?

Cheapflights helps you search for flights from Heathrow to Pennsylvania via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Pennsylvania?

Cheapflights helps you find that perfect flight to Pennsylvania from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Pennsylvania with no change fees?

Need flexible booking options for your flight to Pennsylvania from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Pennsylvania become cheaper?

Yes! Start tracking prices for Heathrow to Pennsylvania flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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