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Cheap flights from Pennsylvania to London Heathrow Airport from £210

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
17 Jun — 24 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pennsylvania to Heathrow

Enter your travel dates to find the best prices.

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 May 2026.

Mon 31/820:30
JFK
-
LHR
1 stop18h 50m
Icelandair
Mon 7/913:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 14/5£507
Mon 31/823:10
JFK
-
LHR
1 stop16h 10m
Icelandair
Mon 14/921:25
LHR
-
JFK
1 stop29h 40m
Icelandair
Deal found 15/5£508
Tue 3/1122:00
JFK
-
LHR
1 stop19h 40m
TAP AIR PORTUGAL
Wed 11/1106:00
LHR
-
JFK
1 stop19h 05m
TAP AIR PORTUGAL
Deal found 15/5£508
Tue 3/1122:00
JFK
-
LHR
1 stop19h 40m
TAP AIR PORTUGAL
Sun 8/1119:55
LHR
-
JFK
1 stop29h 10m
TAP AIR PORTUGAL
Deal found 17/5£509
Thu 19/1122:00
JFK
-
LHR
1 stop14h 30m
TAP AIR PORTUGAL
Thu 26/1112:25
LHR
-
JFK
1 stop12h 40m
TAP AIR PORTUGAL
Deal found 17/5£510
Fri 2/1022:05
JFK
-
LHR
1 stop15h 45m
TAP AIR PORTUGAL
Mon 12/1011:20
LHR
-
JFK
1 stop13h 45m
TAP AIR PORTUGAL
Deal found 15/5£511
Tue 24/1119:25
JFK
-
LHR
1 stop19h 05m
Icelandair
Sun 29/1120:35
LHR
-
JFK
1 stop26h 25m
Icelandair
Deal found 16/5£511
Thu 16/723:50
JFK
-
LHR
1 stop15h 15m
LEVEL
Fri 20/1109:55
LHR
-
JFK
1 stop17h 05m
LEVEL
Deal found 15/5£512
Sat 23/519:20
JFK
-
LHR
Nonstop7h 00m
GOL
Sat 30/514:10
LHR
-
JFK
Nonstop7h 50m
GOL
Deal found 16/5£513
Thu 8/1020:30
JFK
-
LHR
1 stop10h 25m
Icelandair
Tue 13/1013:05
LHR
-
JFK
1 stop11h 15m
Icelandair
Deal found 13/5£514
Sat 29/817:10
JFK
-
LHR
1 stop11h 25m
Scandinavian Airlines
Mon 31/806:40
LHR
-
JFK
2 stops15h 20m
Scandinavian Airlines
Deal found 17/5£514
Wed 8/715:30
LGA
-
LHR
1 stop10h 00m
Air Canada
Fri 17/709:30
LHR
-
LGA
1 stop12h 27m
Air Canada
Deal found 14/5£515

Find 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 May 2026.

Round-trip from

£507

One-way from

£210

Popular in

June

Cheapest in

September

Average price

£661

Good round-trip deal

£843 or less

Good one-way deal

£440 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 7/9-10/9
  • 3 total stops
  • 48h 45m total
  • Pennsylvania to London
Search Deals
British Airways
  • British Airways
  • 6/10
  • 1 total stop
  • 15h 22m total
  • Pennsylvania to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£121 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Pennsylvania to London Heathrow.
Search Deals
Price to beat on a one-way flight from Pennsylvania to London Heathrow.
Search Deals

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 May 2026.
Use the filters below to find and compare flights from Pennsylvania to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Wed 4/11

23:45-20:05

1 stop15h 20m

London Heathrow

Wed 11/11

09:55-22:00

1 stop17h 05m

£512

NewarkLondon

EWR - LHR

EWRLHR

Newark

Sat 5/9

17:20-14:35

2 stops16h 15m

London Heathrow

Tue 15/9

21:05-13:15

2 stops21h 10m

£559

NewarkLondon

EWR - LHR

EWRLHR

Newark

Thu 24/9

17:15-09:20

1 stop11h 05m

London Heathrow

Sun 27/9

19:50-13:15

2 stops22h 25m

£566

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 18/8

18:55-14:35

2 stops14h 40m

London Heathrow

Sat 22/8

06:40-17:00

1 stop15h 20m

£576

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 13/10

09:35-21:40

Nonstop7h 05m

London Heathrow

Tue 20/10

10:20-19:10

1 stop13h 50m

£578

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 29/9

20:20-08:30

Nonstop7h 10m

London Heathrow

Tue 6/10

10:20-19:10

1 stop13h 50m

£578

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Sat 10/10

19:20-07:20

Nonstop7h 00m

London Heathrow

Tue 27/10

07:30-20:05

1 stop16h 35m

£578

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Tue 1/9

20:45-08:50

Nonstop7h 05m

London Heathrow

Sat 5/9

11:30-18:45

1 stop12h 15m

£594

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Fri 4/9

19:00-07:15

Nonstop7h 15m

London Heathrow

Sat 12/9

08:40-14:35

1 stop10h 55m

£594

New YorkLondon

JFK - LHR

JFKLHR

New York John F Kennedy Intl

Thu 30/7

08:15-20:10

Nonstop6h 55m

London Heathrow

Fri 4/9

11:45-17:05

1 stop10h 20m

£594

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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

Booking 21 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pennsylvania to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £67). Flying from Pennsylvania to London Heathrow Airport in September is currently the most expensive (average of £1,281). 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 May 2026.

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 May 2026.

The most flights from USPA to LHR are scheduled on a Monday (15 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 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 05m. Fly via LEVEL, Scandinavian Airlines, or Finnair to get the fastest option. Pennsylvania and London Heathrow Airport are separated by a distance of 3440 mi. This flight may include one or multiple stops.

  • 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 New York LaGuardia - 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 Malaysia Airlines (98%), Iberia (96%) and American Airlines (94%).

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

    The cheapest flight price from Pennsylvania to London Heathrow Airport is £671. On average you can expect to pay £956. The most popular route, (New York John F Kennedy Intl - London Heathrow), can usually be booked for £398.

  • 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, August is the cheapest month in which you can book a flight from Pennsylvania to London Heathrow Airport (average of £67). Flying from Pennsylvania to London Heathrow Airport in September is currently the most expensive (average of £1,281). 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
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

Browse thousands of different options on Cheapflights for your next trip

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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
John F Kennedy Intl to Gatwick flights
Newark to Gatwick flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
Boston to Heathrow flights
LaGuardia to Gatwick flights
Dulles Intl to Heathrow flights
Los Angeles to Heathrow flights
Baltimore to Heathrow flights
Newark to Stansted flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
Newark to Luton flights
Seattle to Heathrow flights
Boston to Gatwick flights
Dallas/Fort Worth to Heathrow flights
LaGuardia to Stansted flights
Orlando to Heathrow flights
Atlanta to Heathrow flights
Hobby to Heathrow flights
Boston to London City flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Los Angeles to Gatwick flights
Denver to Heathrow flights
Miami to Heathrow flights
Boston to Stansted flights
Los Angeles to Stansted flights
George Bush Intcntl to Heathrow flights
Philadelphia to Heathrow flights
Dulles Intl to London City flights
Los Angeles to London City flights
Orlando to Gatwick flights
Baltimore to Gatwick flights
Reagan-National to Gatwick flights
O'Hare Intl to Gatwick flights
Seattle to Gatwick flights
O'Hare Intl to Stansted flights
Newark to London City flights
San Francisco to Gatwick flights
O'Hare Intl to London City flights
Tampa to Heathrow flights
San Francisco to Stansted flights
San Francisco to London City 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 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£385Average£548FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£393Average£515FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
JetBlueCheapest£428Average£592FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£524Average£700FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£1,034Average£1,140FlexibilityNo cancel feeOn-time69%
Search United 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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