Cheap Flights from Philadelphia (PHL) to London (LHR) from HK$3,960~

View HK$3,960 flight on Thu, 22 Jan 2026Opens in a new window

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

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at HK$3,960 for one-way flights and HK$5,916 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$5,916 Return, found 4 days ago
HK$5,916
Return
found 4 days ago
Select United flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$5,916 found 4 days ago
Air Canada
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$5,942 Return, found 4 days ago
HK$5,942
Return
found 4 days ago
Select Air Canada flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$5,942 found 4 days ago
United
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$5,968 Return, found 4 days ago
HK$5,968
Return
found 4 days ago
Select United flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$5,968 found 4 days ago
United
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$6,006 Return, found 4 days ago
HK$6,006
Return
found 4 days ago
Select United flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$6,006 found 4 days ago
United
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$6,032 Return, found 4 days ago
HK$6,032
Return
found 4 days ago
Select United flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$6,032 found 4 days ago
Air Canada
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$6,058 Return, found 4 days ago
HK$6,058
Return
found 4 days ago
Select Air Canada flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$6,058 found 4 days ago
United
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$6,064 Return, found 4 days ago
HK$6,064
Return
found 4 days ago
Select United flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$6,064 found 4 days ago
Delta
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$6,126 Return, found 4 days ago
HK$6,126
Return
found 4 days ago
Select Delta flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$6,126 found 4 days ago
Virgin Atlantic
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$6,126 Return, found 4 days ago
HK$6,126
Return
found 4 days ago
Select Virgin Atlantic flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$6,126 found 4 days ago
Air France
Thu, 22 Jan - Wed, 28 Jan
PHL
Philadelphia
LHR
London
HK$6,398 Return, found 4 days ago
HK$6,398
Return
found 4 days ago
Select Air France flight, departing Thu, 22 Jan from Philadelphia to London, returning Wed, 28 Jan, priced at HK$6,398 found 4 days ago

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

November is typically the cheapest month to fly

From HK$3,716 - HK$6,480 per traveller.
Philadelphia to London route information
Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Return price
HK$5,916
Distance
5656 km
Average flight time
12 hours 2 mins

Flights from Philadelphia to London

Book cheap flights from Philadelphia (PHL) to London (LHR) 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 Philadelphia (PHL) to London (LHR) 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 Philadelphia (PHL) to London (LHR) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

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

If you would like to book flights to London more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to London is HK$3,960 now!

 

Frequently asked questions

How much is a flight from PHL to London Heathrow?
The lowest price advertised for a round-trip journey from Philadelphia Intl. Airport (PHL) to LHR is HK$5,916. But you better move fast. This price is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Philadelphia Intl. Airport (PHL) to Heathrow Airport?
Most flights can be canceled online, but each air carrier has its own set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Philadelphia Intl. Airport (PHL) to Heathrow Airport (LHR) 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 Philadelphia Airport to LHR flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PHL to LHR?
With a flight distance of 5,700 kilometers between Philadelphia and Hounslow, this is a long-haul journey. Be sure to stay hydrated and take a short walk down the aisle from time to time.
Which airlines fly direct from Philadelphia Airport to Heathrow Airport?
A leading airline that operates on the route from PHL to London Heathrow is British Airways (BA). It offers 30 flights every month. Another airline operating on this route is American Airlines (AA). You'll have 26 flights a month to select from.
Are Philadelphia Intl. Airport (PHL) to Heathrow Airport (LHR) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Philadelphia Intl. Airport (PHL) to Heathrow Airport (LHR) at the last minute could be your ticket to a great deal. However, it might cost you a whole lot more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

Explore a world of travel with Expedia

*Available to Expedia members.