Cheap Flights from London (LHR) to Philadelphia (PHL) from HK$7,772~

View HK$7,772 flight on Sun, 7 Sep 2025Opens in a new window

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

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Find Cheap Flights from London (LHR) to Philadelphia (PHL)

Prices were available within the past 7 days and start at HK$7,772 for one-way flights and HK$5,197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 11 Sep - Mon, 15 Sep
LHR
London
PHL
Philadelphia
HK$5,197 Return, found 2 days ago
HK$5,197
Return
found 2 days ago
Select United flight, departing Thu, 11 Sep from London to Philadelphia, returning Mon, 15 Sep, priced at HK$5,197 found 2 days ago
Air Canada
Sun, 7 Sep - Sun, 14 Sep
LHR
London
PHL
Philadelphia
HK$5,239 Return, found 4 days ago
HK$5,239
Return
found 4 days ago
Select Air Canada flight, departing Sun, 7 Sep from London to Philadelphia, returning Sun, 14 Sep, priced at HK$5,239 found 4 days ago
Air Canada
Thu, 11 Sep - Mon, 15 Sep
LHR
London
PHL
Philadelphia
HK$5,250 Return, found 2 days ago
HK$5,250
Return
found 2 days ago
Select Air Canada flight, departing Thu, 11 Sep from London to Philadelphia, returning Mon, 15 Sep, priced at HK$5,250 found 2 days ago
United
Thu, 11 Sep - Mon, 15 Sep
LHR
London
PHL
Philadelphia
HK$5,251 Return, found 2 days ago
HK$5,251
Return
found 2 days ago
Select United flight, departing Thu, 11 Sep from London to Philadelphia, returning Mon, 15 Sep, priced at HK$5,251 found 2 days ago
United
Thu, 11 Sep - Mon, 15 Sep
LHR
London
PHL
Philadelphia
HK$5,266 Return, found 2 days ago
HK$5,266
Return
found 2 days ago
Select United flight, departing Thu, 11 Sep from London to Philadelphia, returning Mon, 15 Sep, priced at HK$5,266 found 2 days ago
Air Canada
Sun, 7 Sep - Sun, 14 Sep
LHR
London
PHL
Philadelphia
HK$5,291 Return, found 4 days ago
HK$5,291
Return
found 4 days ago
Select Air Canada flight, departing Sun, 7 Sep from London to Philadelphia, returning Sun, 14 Sep, priced at HK$5,291 found 4 days ago
United
Sun, 7 Sep - Sun, 14 Sep
LHR
London
PHL
Philadelphia
HK$5,298 Return, found 4 days ago
HK$5,298
Return
found 4 days ago
Select United flight, departing Sun, 7 Sep from London to Philadelphia, returning Sun, 14 Sep, priced at HK$5,298 found 4 days ago
Lufthansa
Thu, 11 Sep - Mon, 15 Sep
LHR
London
PHL
Philadelphia
HK$5,352 Return, found 2 days ago
HK$5,352
Return
found 2 days ago
Select Lufthansa flight, departing Thu, 11 Sep from London to Philadelphia, returning Mon, 15 Sep, priced at HK$5,352 found 2 days ago
Brussels Airlines
Thu, 11 Sep - Mon, 15 Sep
LHR
London
PHL
Philadelphia
HK$5,474 Return, found 2 days ago
HK$5,474
Return
found 2 days ago
Select Brussels Airlines flight, departing Thu, 11 Sep from London to Philadelphia, returning Mon, 15 Sep, priced at HK$5,474 found 2 days ago
British Airways
Sun, 7 Sep - Sun, 14 Sep
LHR
London
PHL
Philadelphia
HK$5,535 Return, found 4 days ago
HK$5,535
Return
found 4 days ago
Select British Airways flight, departing Sun, 7 Sep from London to Philadelphia, returning Sun, 14 Sep, priced at HK$5,535 found 4 days ago

Find the cheapest month to fly from London (LHR) to Philadelphia (PHL)

February is typically the cheapest month to fly

From HK$3,745 - HK$7,730 per traveller.

Graph displaying average flight prices per month

London to Philadelphia route information
Origin airport
Heathrow
Destination airport
Philadelphia Intl.
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Finnair, Iberia, United, Virgin Atlantic
Return price
HK$5,197
Distance
5656 km
Average flight time
2 hours 55 mins

Flights from London to Philadelphia

Book cheap flights from London (LHR) to Philadelphia (PHL) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from London (LHR) to Philadelphia (PHL) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your London (LHR) to Philadelphia (PHL) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Philadelphia flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Philadelphia and things to do in Philadelphia for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Philadelphia more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Philadelphia is HK$7,772 now!

 

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 HK$5,197. 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 kilometers 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.

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