€424 Cheap Flights London to Philadelphia (LHR-PHL)

View €424 flight on Fri, 22 May 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Philadelphia Intl. Airport (PHL)

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Cheap flights from London to Philadelphia (LHR-PHL)

Prices were available within the past 7 days and start at €424 for one-way flights and €645 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Mon, 8 Jun - Wed, 30 Sept
LHR
London
PHL
Philadelphia
€645 Return, found 5 days ago
€645
Return
found 5 days ago
Select JetBlue Airways flight, departing Mon, 8 Jun from London to Philadelphia, returning Wed, 30 Sept, priced at €645 found 5 days ago
JetBlue Airways
Tue, 22 Sept - Tue, 13 Oct
LHR
London
PHL
Philadelphia
€647 Return, found 2 days ago
€647
Return
found 2 days ago
Select JetBlue Airways flight, departing Tue, 22 Sept from London to Philadelphia, returning Tue, 13 Oct, priced at €647 found 2 days ago
JetBlue Airways
Mon, 8 Jun - Wed, 30 Sept
LHR
London
PHL
Philadelphia
€664 Return, found 5 days ago
€664
Return
found 5 days ago
Select JetBlue Airways flight, departing Mon, 8 Jun from London to Philadelphia, returning Wed, 30 Sept, priced at €664 found 5 days ago
JetBlue Airways
Mon, 16 Nov - Sun, 22 Nov
LHR
London
PHL
Philadelphia
€736 Return, found 1 day ago
€736
Return
found 1 day ago
Select JetBlue Airways flight, departing Mon, 16 Nov from London to Philadelphia, returning Sun, 22 Nov, priced at €736 found 1 day ago
British Airways
Tue, 22 Sept - Tue, 13 Oct
LHR
London
PHL
Philadelphia
€736 Return, found 2 days ago
€736
Return
found 2 days ago
Select British Airways flight, departing Tue, 22 Sept from London to Philadelphia, returning Tue, 13 Oct, priced at €736 found 2 days ago
Lufthansa
Mon, 8 Jun - Wed, 30 Sept
LHR
London
PHL
Philadelphia
€740 Return, found 5 days ago
€740
Return
found 5 days ago
Select Lufthansa flight, departing Mon, 8 Jun from London to Philadelphia, returning Wed, 30 Sept, priced at €740 found 5 days ago
Lufthansa
Tue, 22 Sept - Tue, 13 Oct
LHR
London
PHL
Philadelphia
€742 Return, found 2 days ago
€742
Return
found 2 days ago
Select Lufthansa flight, departing Tue, 22 Sept from London to Philadelphia, returning Tue, 13 Oct, priced at €742 found 2 days ago
Brussels Airlines
Mon, 16 Nov - Sun, 22 Nov
LHR
London
PHL
Philadelphia
€744 Return, found 1 day ago
€744
Return
found 1 day ago
Select Brussels Airlines flight, departing Mon, 16 Nov from London to Philadelphia, returning Sun, 22 Nov, priced at €744 found 1 day ago
British Airways
Tue, 22 Sept - Tue, 13 Oct
LHR
London
PHL
Philadelphia
€745 Return, found 2 days ago
€745
Return
found 2 days ago
Select British Airways flight, departing Tue, 22 Sept from London to Philadelphia, returning Tue, 13 Oct, priced at €745 found 2 days ago
American Airlines
Tue, 22 Sept - Tue, 13 Oct
LHR
London
PHL
Philadelphia
€750 Return, found 2 days ago
€750
Return
found 2 days ago
Select American Airlines flight, departing Tue, 22 Sept from London to Philadelphia, returning Tue, 13 Oct, priced at €750 found 2 days ago

Frequently asked questions

How much is a flight from London Heathrow to Philadelphia Intl. Airport (PHL)?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip flights from LHR to Philadelphia Intl. Airport (PHL) start from €645. Book now to score the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport to Philadelphia Intl. Airport (PHL)?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Heathrow Airport to Philadelphia Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport to Philadelphia Intl. Airport (PHL) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to PHL?
With around 5,700 kilometres separating LHR and Philadelphia Airport, your flight will be a long one. Pack wisely and make your time on board comfortable. Little things like an extra pair of socks and a good travel pillow can make a huge difference.
Which airlines fly direct from Heathrow Airport to Philadelphia Airport?
There are several airlines that fly straight from London Heathrow to Philadelphia Intl. Airport (PHL). British Airways (BA) is a top choice, offering 30 flights every month. Another carrier operating on this route is American Airlines (AA). You'll have 26 flights a month to take your pick of.
Are Heathrow Airport (LHR) to PHL flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes pick up a bargain, with some super cheap airfares from Heathrow Airport to Philadelphia Intl. Airport (PHL) appearing a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals regularly — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines issue prices that far in advance.

Travel information

Origin airport
Heathrow
Destination airport
Philadelphia Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United, Virgin Atlantic
Return price
€644
Distance
5656 km
Average flight time
2 hours 55 mins

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