₩643,400 Cheap Flights from Philadelphia (PHL) to London (LHR)

View ₩643,400 flight on Mon, Dec 1, 2025Opens 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 ₩643,400 for one-way flights and ₩2,979,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,979,000 Roundtrip, found 21 hours ago
₩2,979,000
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,979,000 found 21 hours ago
United
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,980,400 Roundtrip, found 21 hours ago
₩2,980,400
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,980,400 found 21 hours ago
Air Canada
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,986,900 Roundtrip, found 21 hours ago
₩2,986,900
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,986,900 found 21 hours ago
Air Canada
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,988,200 Roundtrip, found 21 hours ago
₩2,988,200
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,988,200 found 21 hours ago
United
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,988,300 Roundtrip, found 21 hours ago
₩2,988,300
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,988,300 found 21 hours ago
United
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,989,600 Roundtrip, found 21 hours ago
₩2,989,600
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,989,600 found 21 hours ago
Air Canada
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,989,900 Roundtrip, found 21 hours ago
₩2,989,900
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,989,900 found 21 hours ago
United
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,991,300 Roundtrip, found 21 hours ago
₩2,991,300
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,991,300 found 21 hours ago
Delta
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,994,400 Roundtrip, found 21 hours ago
₩2,994,400
Roundtrip
found 21 hours ago
Select Delta flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,994,400 found 21 hours ago
Air Canada
Tue, Oct 7 - Tue, Oct 14
PHL
Philadelphia
LHR
London
₩2,994,900 Roundtrip, found 21 hours ago
₩2,994,900
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Tue, Oct 7 from Philadelphia to London, returning Tue, Oct 14, priced at ₩2,994,900 found 21 hours ago

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

November is typically the cheapest month to fly

From ₩670,378 - ₩1,303,955 per traveler.

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 ₩2,979,000. 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.

Travel information

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Roundtrip price
₩2,979,000
Distance
5656 km
Average flight time
12 hours 10 mins

Book with confidence

Book with confidence

Philadelphia to London Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Philadelphia to London will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring London.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with PHL to LHR flights that won’t make your bank account wince. Ready to temporarily leave behind Philadelphia for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LHR with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Philadelphia to London Flights

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Explore a world of travel with Expedia

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