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Cheap flights from London Heathrow Airport to Pennsylvania from £284

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
29 Aug — 5 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 30 July 2026.

Sat 17/1017:05
LHR
-
IAD
Nonstop8h 15m
British Airways
Sun 1/1118:05
IAD
-
LHR
Nonstop7h 10m
British Airways
Deal found 29/7£435
Wed 9/913:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Mon 21/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 29/7£436
Wed 23/913:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Sun 27/923:20
IAD
-
LHR
1 stop16h 00m
Icelandair
Deal found 27/7£436
Tue 8/921:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Fri 25/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 29/7£437
Tue 25/821:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Mon 31/820:30
IAD
-
LHR
1 stop18h 50m
Icelandair
Deal found 26/7£438
Tue 13/1013:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Thu 29/1020:40
IAD
-
LHR
1 stop10h 10m
Icelandair
Deal found 28/7£439
Fri 2/1007:30
LHR
-
IAD
1 stop12h 40m
Lufthansa
Tue 6/1018:35
IAD
-
LHR
Nonstop7h 20m
Lufthansa
Deal found 30/7£439
Fri 23/1006:00
LHR
-
IAD
1 stop15h 45m
Multiple Airlines
Fri 30/1023:15
IAD
-
LHR
Nonstop7h 35m
Multiple Airlines
Deal found 26/7£440
Tue 1/1212:15
LHR
-
IAD
1 stop11h 15m
Icelandair
Sun 6/1219:40
IAD
-
LHR
1 stop10h 10m
Icelandair
Deal found 27/7£441
Thu 8/1006:00
LHR
-
IAD
1 stop19h 35m
TAP AIR PORTUGAL
Wed 28/1023:30
IAD
-
LHR
1 stop18h 05m
TAP AIR PORTUGAL
Deal found 27/7£442
Sat 5/906:00
LHR
-
IAD
1 stop13h 00m
Austrian Airlines
Sat 19/917:15
IAD
-
LHR
1 stop13h 40m
Austrian Airlines
Deal found 30/7£442
Tue 1/921:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Tue 15/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 30/7£443

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 30 July 2026.

Round-trip from

£435

One-way from

£284

Popular in

July

Cheapest in

September

Average price

£789

Good round-trip deal

£642 or less

Good one-way deal

£419 or less
British Airways
  • British Airways
  • 17/10-1/11
  • Nonstop
  • 15h 25m total
  • London to Pennsylvania
Search Deals
JetBlue
  • JetBlue
  • 29/10
  • 1 total stop
  • 14h 40m 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 July 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 30 July 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

Wed 14/10

13:05-22:15

1 stop14h 10m

Washington, D.C. Dulles Intl

Sat 17/10

20:30-11:55

1 stop10h 25m

£437

LondonNew York

LHR - JFK

LHRJFK

London Heathrow

Fri 2/10

08:40-16:35

1 stop12h 55m

New York John F Kennedy Intl

Fri 9/10

20:30-13:00

1 stop11h 30m

£445

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Sat 5/9

06:50-18:45

2 stops16h 55m

New York LaGuardia

Sat 26/9

06:00-06:45

1 stop19h 45m

£454

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Sat 29/8

06:50-18:45

2 stops16h 55m

New York LaGuardia

Mon 31/8

09:10-06:45

1 stop16h 35m

£454

LondonNew York

LHR - LGA

LHRLGA

London Heathrow

Sat 29/8

06:50-18:45

2 stops16h 55m

New York LaGuardia

Fri 4/9

11:20-06:45

1 stop14h 25m

£454

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 6/10

11:30-18:50

1 stop12h 20m

Washington, D.C. Dulles Intl

Tue 20/10

17:45-06:20

Nonstop7h 35m

£460

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 9/9

13:30-20:00

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 16/9

18:35-06:55

Nonstop7h 20m

£465

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 11/9

08:30-15:10

1 stop11h 40m

Washington, D.C. Dulles Intl

Fri 18/9

22:05-10:40

Nonstop7h 35m

£465

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 12/9

08:30-15:10

1 stop11h 40m

Washington, D.C. Dulles Intl

Sat 19/9

18:35-06:55

Nonstop7h 20m

£465

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 23/8

08:30-15:15

1 stop11h 45m

Washington, D.C. Dulles Intl

Sat 29/8

18:30-06:55

Nonstop7h 25m

£465

Flights are sorted by cheapest return flights first.

Deals found on 25/7

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 £557). Flying from London Heathrow Airport to Pennsylvania in July is currently the most expensive (average of £821). 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 30 July 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 30 July 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 £662 and £894 in October.
The cheapest return price found within the last 5 days was £598 on United Airlines (8 Oct–11 Oct).

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 30 July 2026.
Read reviews from past customers who have flown with Finnair,Aer Lingus, andAmerican Airlines from London Heathrow Airport to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,426 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,426 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

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
1,683 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

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
11,846 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
JetBlue
7.1
Good
3,028 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

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
8,129 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Overall

7.6

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Food

6.7

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?

    Icelandair, United Airlines, and British Airways can get you from London Heathrow Airport to Pennsylvania in just under 12h 20m. Your travel time can differ by up to 1h 50m. The distance from London Heathrow Airport to Pennsylvania is about 3664 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 £274 on JetBlue. Other airlines that offer cheap prices include Aer Lingus from £350 and Iberia from £393 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 (88%), American Airlines (81%), Finnair( 81%).

  • 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 £2,053, our data indicates the cheapest price to be £372. The most popular route (London Heathrow - New York John F Kennedy Intl), is priced around £273.

  • 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 £557). Flying from London Heathrow Airport to Pennsylvania in July is currently the most expensive (average of £821). 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 Los Angeles flights
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London City to John F Kennedy Intl flights
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Luton to John F Kennedy Intl flights
Heathrow to Miami flights
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Stansted to Newark flights
Heathrow to San Francisco flights
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Heathrow to Hobby flights
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Luton to Los Angeles flights
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Stansted to Miami flights
London City to Orlando flights
Heathrow to Atlanta flights
London City to Miami flights
Gatwick to Boston flights
Heathrow to Ontario flights
Heathrow to Tampa flights
Heathrow to George Bush Intcntl flights
Gatwick to San Francisco flights
London City to Boston flights
London City to San Francisco flights
Heathrow to Denver flights
Stansted to San Francisco flights
Luton to Miami flights
Gatwick to Dallas/Fort Worth flights
Stansted to Boston flights
Gatwick to O'Hare Intl flights
Heathrow to Philadelphia flights
London City to O'Hare Intl 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 30 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£211Average£648FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£255Average£466FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£335Average£702FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£404Average£660FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£419Average£613FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£435Average£550FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£445Average£706FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£448Average£642FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£453Average£660FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£464Average£755FlexibilityNo 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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