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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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
13 Sep — 20 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 14 August 2026.

Wed 28/1013:00 -
1 stop12h 31m
Sun 1/1118:55 -
1 stop11h 25m
Deal found 11/8£426
Wed 9/920:05 -
1 stop21h 45m
Mon 21/916:15 -
1 stop10h 40m
Deal found 11/8£426
Thu 17/914:05 -
1 stop10h 31m
Thu 24/914:30 -
1 stop11h 05m
Deal found 11/8£427
Tue 1/1209:00 -
1 stop12h 40m
Wed 2/1219:35 -
1 stop13h 05m
Deal found 10/8£427
Thu 1/1014:05 -
1 stop10h 31m
Tue 6/1014:30 -
1 stop11h 05m
Deal found 11/8£428
Fri 2/1008:40 -
1 stop15h 35m
Wed 7/1018:30 -
Nonstop7h 15m
Deal found 11/8£428
Thu 10/914:05 -
1 stop10h 31m
Thu 17/914:30 -
1 stop11h 05m
Deal found 11/8£428
Thu 17/908:45 -
1 stop12h 50m
Sat 14/1116:25 -
1 stop10h 40m
Deal found 12/8£428
Thu 3/914:05 -
1 stop10h 35m
Sun 13/916:45 -
1 stop11h 50m
Deal found 11/8£429
Mon 26/1009:00 -
1 stop12h 40m
Wed 4/1117:30 -
1 stop11h 55m
Deal found 13/8£429
Fri 11/1209:30 -
1 stop11h 25m
Fri 15/120:10 -
1 stop11h 50m
Deal found 13/8£430
Wed 25/1106:00 -
2 stops18h 06m
Fri 27/1112:45 -
2 stops22h 35m
Deal found 13/8£430

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 14 August 2026.

Round-trip from

£426

One-way from

£329

Popular in

August

Cheapest in

January

Average price

£809

Good round-trip deal

£669 or less

Good one-way deal

£416 or less
Air Canada
  • Air Canada
  • 28/10-1/11
  • 2 total stops
  • 23h 56m total
  • London to Pennsylvania
Search Deals
14/9
  • 14/9
  • 3 total stops
  • 32h 08m total
  • London to Pennsylvania
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 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 14 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 London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Sun 13/12

07:30-15:55

1 stop13h 25m

Washington, D.C. Dulles Intl

Sat 2/1

06:10-05:55

1 stop18h 45m

£430

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Mon 24/8

08:30-15:15

1 stop11h 45m

Washington, D.C. Dulles Intl

Mon 21/9

18:35-06:55

Nonstop7h 20m

£432

LondonNew York

LHR London Heathrow - JFK New York John F Kennedy Intl

LHRJFK

London Heathrow

Thu 10/9

10:20-19:10

1 stop13h 50m

New York John F Kennedy Intl

Fri 25/9

18:20-06:25

Nonstop7h 05m

£435

LondonNew York

LHR London Heathrow - LGA New York LaGuardia

LHRLGA

London Heathrow

Fri 11/9

07:30-20:25

2 stops17h 55m

New York LaGuardia

Fri 18/9

10:15-06:45

1 stop15h 30m

£435

LondonNew York

LHR London Heathrow - LGA New York LaGuardia

LHRLGA

London Heathrow

Sun 6/9

06:50-17:25

2 stops15h 35m

New York LaGuardia

Sun 13/9

11:20-09:00

1 stop16h 40m

£437

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Thu 24/9

15:00-21:59

1 stop11h 59m

Washington, D.C. Reagan-National

Fri 2/10

16:59-08:00

1 stop10h 01m

£441

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Sun 6/9

09:15-15:58

1 stop11h 43m

Washington, D.C. Reagan-National

Sun 13/9

06:00-21:40

1 stop10h 40m

£441

LondonNew York

LHR London Heathrow - LGA New York LaGuardia

LHRLGA

London Heathrow

Sun 1/11

07:30-18:45

2 stops16h 15m

New York LaGuardia

Thu 5/11

14:59-10:50

1 stop14h 51m

£441

LondonNew York

LHR London Heathrow - JFK New York John F Kennedy Intl

LHRJFK

London Heathrow

Fri 9/10

11:45-17:05

1 stop10h 20m

New York John F Kennedy Intl

Tue 13/10

20:15-08:50

Nonstop7h 35m

£442

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Wed 9/9

17:25-23:10

1 stop10h 45m

Washington, D.C. Reagan-National

Wed 30/9

06:00-21:40

1 stop10h 40m

£442

Flights are sorted by cheapest return flights first.

Deals found on 10/8

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 £560). Flying from London Heathrow Airport to Pennsylvania in August is currently the most expensive (average of £838). 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 14 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 14 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 £706 and £915 in September.
The cheapest return price found within the last 5 days was £583 on Aer Lingus (25 Sept–3 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 14 August 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

Boarding

7.7

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.6

Comfort

7.5

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

Boarding

7.7

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.6

Comfort

7.5

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
1,700 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.6

Comfort

7.5

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
11,929 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.6

Comfort

7.5

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
3,036 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.6

Comfort

7.5

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
8,156 reviews
Finnair
7.6
Good
1,426 reviews
Check prices

Boarding

7.7

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.6

Comfort

7.5

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?

    United Airlines, Finnair, and British Airways can get you from London Heathrow Airport to Pennsylvania in just under 11h 59m. Your travel time can differ by up to 1h 51m. 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 £321 on SAUDIA. Other airlines that offer cheap prices include Air India from £389 and Emirates from £486 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 £1,996, our data indicates the cheapest price to be £402. The most popular route (London Heathrow - New York John F Kennedy Intl), is priced around £337.

  • 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 £560). Flying from London Heathrow Airport to Pennsylvania in August is currently the most expensive (average of £838). 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
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Stansted to John F Kennedy Intl flights
Gatwick to Newark 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
London City to Newark flights
Heathrow to Dallas/Fort Worth flights
Heathrow to Boston flights
Heathrow to Las Vegas flights
Heathrow to San Francisco flights
Heathrow to Dulles Intl flights
Heathrow to O'Hare Intl flights
Heathrow to Hobby flights
Gatwick to Orlando flights
Heathrow to Baltimore flights
Stansted to Orlando flights
Gatwick to Miami flights
Heathrow to George Bush Intcntl flights
London City to Orlando flights
Gatwick to Los Angeles flights
Stansted to Miami flights
London City to Miami flights
Heathrow to Tampa flights
Heathrow to Seattle flights
London City to Los Angeles flights
Stansted to Los Angeles flights
Gatwick to Boston flights
Heathrow to Atlanta flights
London City to Boston flights
Luton to Miami flights
Gatwick to Las Vegas flights
Gatwick to San Francisco flights
Luton to Orlando flights
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
Heathrow to Ontario flights
London City to San Francisco flights
Gatwick to Dallas/Fort Worth flights
Stansted to Dulles Intl flights
Heathrow to Nashville flights
London City to Dulles 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 14 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£210Average£664FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£253Average£463FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£333Average£702FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£402Average£656FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£417Average£571FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£434Average£589FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£442Average£704FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£445Average£650FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£451Average£663FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£461Average£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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