S$591 Cheap Flights from Philadelphia to London

View S$591 flight on Wed, 18 Feb, 2026Opens in a new window

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

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Cheap Flights from Philadelphia to London (PHL-LHR)

Prices were available within the past 7 days and start at S$591 for one-way flights and S$911 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$911 Return, found 2 days ago
S$911
Return
found 2 days ago
Select United flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$911 found 2 days ago
Air Canada
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$916 Return, found 2 days ago
S$916
Return
found 2 days ago
Select Air Canada flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$916 found 2 days ago
United
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$918 Return, found 2 days ago
S$918
Return
found 2 days ago
Select United flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$918 found 2 days ago
Air Canada
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$923 Return, found 2 days ago
S$923
Return
found 2 days ago
Select Air Canada flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$923 found 2 days ago
United
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$932 Return, found 2 days ago
S$932
Return
found 2 days ago
Select United flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$932 found 2 days ago
Air Canada
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$937 Return, found 2 days ago
S$937
Return
found 2 days ago
Select Air Canada flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$937 found 2 days ago
United
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$939 Return, found 2 days ago
S$939
Return
found 2 days ago
Select United flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$939 found 2 days ago
Lufthansa
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$950 Return, found 2 days ago
S$950
Return
found 2 days ago
Select Lufthansa flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$950 found 2 days ago
Delta
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$951 Return, found 2 days ago
S$951
Return
found 2 days ago
Select Delta flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$951 found 2 days ago
Virgin Atlantic
Wed, 18 Feb - Wed, 25 Feb
PHL
Philadelphia
LHR
London
S$951 Return, found 2 days ago
S$951
Return
found 2 days ago
Select Virgin Atlantic flight, departing Wed, 18 Feb from Philadelphia to London, returning Wed, 25 Feb, priced at S$951 found 2 days ago

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

October is typically the cheapest month to fly

From S$619 - S$1,076 per traveller.

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 S$911. 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 cancelled 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 kilometres 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.

Travel information

0
Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Return price
S$911
Distance
5656 km

Book with confidence

Flights from Philadelphia to London

There are several airlines that operate frequent flights from Philadelphia (PHL) to London (LHR) including

The earliest flight leaves Philadelphia Intl. Airport at 18:04 and arrives at Heathrow Airport at 06:35. The last flight of the day departs Philadelphia at 23:20 and arrives at London at 10:15.

The flight distance from Philadelphia to London is about 5720 km, the shortest flight is 06 hours 55 minutes with WestJet.

Expedia lets you search across the largest number of airlines and London flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Philadelphia London flight!

Browse through dozens of options and rest 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 to London trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your London flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Philadelphia to London with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Flights from Philadelphia to London

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