CA $444 Cheap Flights from Philadelphia (PHL) to London (LHR)

View CA $444 flight on Thu, Sep. 25, 2025Opens in a new window

Popular airlines from Philadelphia International Airport (PHL) to Heathrow Airport (LHR)

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Cheap flights from Philadelphia (PHL) to London (LHR)

Prices were available within the past 7 days and start at CA $444 for one-way flights and CA $834 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sun., Sep. 21 - Sat., Oct. 4
PHL
Philadelphia
LHR
London
CA $834 Roundtrip, found 6 days ago
CA $834
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Sun., Sep. 21 from Philadelphia to London, returning Sat., Oct. 4, priced at CA $834 found 6 days ago
JetBlue Airways
Sat., May 3 - Tue., May 20
PHL
Philadelphia
LHR
London
CA $836 Roundtrip, found 5 days ago
CA $836
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sat., May 3 from Philadelphia to London, returning Tue., May 20, priced at CA $836 found 5 days ago
Aer Lingus
Tue., Sep. 30 - Tue., Oct. 7
PHL
Philadelphia
LHR
London
CA $838 Roundtrip, found 4 days ago
CA $838
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue., Sep. 30 from Philadelphia to London, returning Tue., Oct. 7, priced at CA $838 found 4 days ago
American Airlines
Tue., Sep. 30 - Tue., Oct. 7
PHL
Philadelphia
LHR
London
CA $859 Roundtrip, found 4 days ago
CA $859
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue., Sep. 30 from Philadelphia to London, returning Tue., Oct. 7, priced at CA $859 found 4 days ago
American Airlines
Sun., Apr. 20 - Tue., Apr. 29
PHL
Philadelphia
LHR
London
CA $890 Roundtrip, found 4 days ago
CA $890
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun., Apr. 20 from Philadelphia to London, returning Tue., Apr. 29, priced at CA $890 found 4 days ago
Air Canada
Tue., Sep. 30 - Tue., Oct. 7
PHL
Philadelphia
LHR
London
CA $892 Roundtrip, found 4 days ago
CA $892
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue., Sep. 30 from Philadelphia to London, returning Tue., Oct. 7, priced at CA $892 found 4 days ago
Virgin Atlantic
Sun., Apr. 20 - Tue., Apr. 29
PHL
Philadelphia
LHR
London
CA $898 Roundtrip, found 4 days ago
CA $898
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Sun., Apr. 20 from Philadelphia to London, returning Tue., Apr. 29, priced at CA $898 found 4 days ago
Delta
Sun., Apr. 20 - Tue., Apr. 29
PHL
Philadelphia
LHR
London
CA $898 Roundtrip, found 4 days ago
CA $898
Roundtrip
found 4 days ago
Select Delta flight, departing Sun., Apr. 20 from Philadelphia to London, returning Tue., Apr. 29, priced at CA $898 found 4 days ago
Air France
Tue., Sep. 30 - Tue., Oct. 7
PHL
Philadelphia
LHR
London
CA $900 Roundtrip, found 4 days ago
CA $900
Roundtrip
found 4 days ago
Select Air France flight, departing Tue., Sep. 30 from Philadelphia to London, returning Tue., Oct. 7, priced at CA $900 found 4 days ago
KLM
Tue., Apr. 15 - Tue., Apr. 22
PHL
Philadelphia
LHR
London
CA $927 Roundtrip, found 5 days ago
CA $927
Roundtrip
found 5 days ago
Select KLM flight, departing Tue., Apr. 15 from Philadelphia to London, returning Tue., Apr. 22, priced at CA $927 found 5 days ago
Flight from Philadelphia to London (PHL - LHR) route information
Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United, Virgin Atlantic
Roundtrip price
CA $834
Distance
5656 km

Philadelphia to London Flights

Ready for an adventure? Thought so! Prepare to see the sights when you book your trip from Philadelphia to London with Expedia.ca. Whether you’re visiting for business or pleasure, we know how important it is to bring home travel stories. Maybe your tales will include the best dinner of your life, or the weirdest street art you saw in the city, or the concert that turned you into a fan of a new band. Whatever it is, your new favourite anecdote is right around the corner. Book your trip from PHL to LHR and begin your journey!

Getting a cheap deal on your trip sets the tone for the perfect holiday. And with Expedia.ca, you know you can travel from Philadelphia to London on the cheap, with enough money left over for a stellar time in the city. That could mean more tours with the kids, more concerts with the spouse, more dessert amongst co-workers, or even front row seats to a sports game if you’re travelling solo. It’s your holiday! Make it great.

Travelling shouldn’t cost an arm and a leg before you even get to relax on the plane’s armrests. Count on Expedia.ca to get you the best discounts on flights from PHL to LHR. And remember this: You can also save big when you bundle. Add a hotel or car rental deal to your flight and witness those savings add up. Hey, more money for more souvenirs, right? Right! Pack your bags and we’ll see you on the route.

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 with Expedia Canada. Use us as your top travel destination and have the confidence that you’re getting a bargain!

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 CA $834. 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.

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