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Cheap flights from Pennsylvania to London Heathrow Airport from £106

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Pennsylvania to Heathrow

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

Round-trip from

£311

One-way from

£106

Popular in

June

Cheapest in

September

Average price

£481

Good round-trip deal

£428 or less

Good one-way deal

£379 or less
American Airlines
  • American Airlines
  • 11/12-12/12
  • 1 total stop
  • 18h 55m total
  • Pennsylvania to London
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22/9
  • 22/9
  • 1 total stop
  • 10h 35m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£101 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Pennsylvania to London Heathrow.
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Price to beat on a one-way flight from Pennsylvania to London Heathrow.
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Find 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 18 September 2025.

Thu 11/1208:05JFK - LHR
Nonstop6h 55mAmerican Airlines
Fri 12/1206:15LHR - JFK
1 stop12h 00mAmerican Airlines
Deal found 16/9£311
Wed 12/1122:00JFK - LHR
1 stop12h 30mTAP AIR PORTUGAL
Tue 18/1108:15LHR - JFK
1 stop16h 50mTAP AIR PORTUGAL
Deal found 16/9£317
Sat 18/1016:05JFK - LHR
1 stop10h 35mMultiple Airlines
Fri 7/1112:25LHR - JFK
1 stop12h 40mMultiple Airlines
Deal found 16/9£318
Thu 23/1008:10JFK - LHR
Nonstop6h 50mVirgin Atlantic
Mon 27/1020:00LHR - JFK
Nonstop7h 55mVirgin Atlantic
Deal found 16/9£319
Thu 27/1122:00JFK - LHR
1 stop15h 55mTAP AIR PORTUGAL
Thu 4/1219:55LHR - JFK
1 stop29h 10mTAP AIR PORTUGAL
Deal found 16/9£320
Sun 9/1122:00JFK - LHR
1 stop14h 30mTAP AIR PORTUGAL
Mon 24/1118:30LHR - JFK
1 stop30h 35mTAP AIR PORTUGAL
Deal found 16/9£321
Thu 23/1020:30JFK - LHR
1 stop11h 30mSWISS
Mon 27/1009:00LHR - JFK
1 stop12h 40mSWISS
Deal found 16/9£325
Fri 14/1122:00JFK - LHR
1 stop19h 40mTAP AIR PORTUGAL
Mon 24/1118:30LHR - JFK
1 stop30h 35mTAP AIR PORTUGAL
Deal found 15/9£325
Wed 12/1121:20JFK - LHR
2 stops43h 20mScandinavian Airlines
Sat 15/1117:30LHR - JFK
2 stops27h 15mScandinavian Airlines
Deal found 16/9£329
Fri 3/1016:50JFK - LHR
1 stop18h 30mIberia
Sun 5/1009:45LHR - JFK
Nonstop7h 55mIberia
Deal found 16/9£330
Fri 7/1106:05LGA - LHR
1 stop20h 05mAir Canada
Sun 9/1106:50LHR - LGA
2 stops19h 43mAir Canada
Deal found 16/9£347
Fri 17/1017:45LGA - LHR
1 stop10h 50mUnited Airlines
Mon 20/1016:40LHR - LGA
1 stop12h 03mUnited Airlines
Deal found 16/9£350

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 18 September 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

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 15/1

17:00-10:10

1 stop12h 10m

London Heathrow

Tue 20/1

09:50-19:29

1 stop14h 39m

£354

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 9/1

23:45-20:05

1 stop15h 20m

London Heathrow

Tue 13/1

09:55-22:00

1 stop17h 05m

£355

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 7/11

18:30-09:15

1 stop9h 45m

London Heathrow

Mon 10/11

10:00-16:25

1 stop11h 25m

£360

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 27/11

09:10-21:20

Nonstop7h 10m

London Heathrow

Thu 4/12

12:05-20:30

1 stop13h 25m

£366

NewarkLondon

EWR - LHR

EWRLHR

Newark

Wed 15/10

15:30-09:35

1 stop13h 05m

London Heathrow

Thu 30/10

09:00-21:30

1 stop16h 30m

£366

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 23/10

14:34-09:35

1 stop14h 01m

London Heathrow

Fri 31/10

09:00-21:30

1 stop16h 30m

£366

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 9/10

17:35-05:55

Nonstop7h 20m

London Heathrow

Wed 15/10

12:10-20:10

1 stop13h 00m

£366

New YorkLondon

LGA - LHR

LGALHR

New York LaGuardia

Sun 21/9

19:29-06:55

1 stop30h 26m

London Heathrow

Sun 5/10

09:30-08:02

1 stop27h 32m

£370

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 19/11

09:40-21:40

Nonstop7h 00m

London Heathrow

Thu 4/12

07:25-10:37

Nonstop8h 12m

£372

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sun 9/11

08:45-20:45

Nonstop7h 00m

London Heathrow

Sat 6/12

12:20-15:51

Nonstop8h 31m

£372

Flights are sorted by cheapest return flights first.

Deals found on 17/9

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 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 Pennsylvania to London Heathrow Airport

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

Currently, January is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £112). Flying from Pennsylvania to London Heathrow Airport in August is currently the most expensive (average of £164). 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 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to London Heathrow Airport as you normally would.

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 18 September 2025.

The most flights from USPA to LHR 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 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?

    There are many flights that can get you from Pennsylvania to London Heathrow Airport in 7h. Fly via Aer Lingus, United Airlines, or British Airways to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3533 mi. This flight may include one or multiple 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 £123 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include LEVEL from £144 and United Airlines from £171 one-way.

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

    The most popular flight routes from Pennsylvania to London Heathrow Airport are New York John F Kennedy Intl - London Heathrow, Newark - London Heathrow and Washington, D.C. Dulles Intl - London Heathrow.

  • 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 Aer Lingus (80%), Iberia (72%) and Finnair (72%).

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

    The cheapest flight price from Pennsylvania to London Heathrow Airport is £297. On average you can expect to pay £479. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £288.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £112). Flying from Pennsylvania to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Swindon
Dartford
Guildford
Brentford

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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
Boston to Heathrow flights
Dulles Intl to Heathrow flights
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Newark to Gatwick flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
John F Kennedy Intl to Gatwick flights
Dallas/Fort Worth to Heathrow flights
San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
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Newark to London City flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
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Hobby to Heathrow flights
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Boston to London City flights
Boston to Gatwick flights
Newark to Stansted flights
Atlanta to Heathrow flights
Newark to Luton flights
Dulles Intl to Gatwick flights
Philadelphia to Heathrow flights
Reagan-National to Heathrow flights
Denver to Heathrow flights
Dulles Intl to London City flights
Orlando to Heathrow flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
Reagan-National to Gatwick flights
Los Angeles to London City flights
Dallas/Fort Worth to Gatwick flights
Boston to Stansted flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Los Angeles to Gatwick flights
Boston to Luton flights
O'Hare Intl to London City flights
Minneapolis to Heathrow flights
San Francisco to London City flights
Raleigh to Heathrow flights
Dulles Intl to Luton flights
Hobby to Gatwick flights
Austin to Heathrow flights

Top 5 airlines flying from Pennsylvania to Heathrow

Discover the top 5 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 858,174 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£383Average£568FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£385Average£763FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£419Average£570FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£454Average£533FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£501Average£653FlexibilityNo cancel feeOn-time71%
Search American Airlines 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 Pennsylvania to Heathrow?

Cheapflights makes it easy to find Pennsylvania to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Pennsylvania to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Pennsylvania to Heathrow with no change fees.

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

Yes, Cheapflights offers price alerts on Pennsylvania to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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