₩1,399,800 Cheap Flights from Philadelphia (PHL) to London (LHR)

View ₩1,399,800 flight on Mon, Apr 20, 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 ₩1,399,800 for one-way flights and ₩2,513,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,513,100 Roundtrip, found 2 days ago
₩2,513,100
Roundtrip
found 2 days ago
Select United flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,513,100 found 2 days ago
Air Canada
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,518,200 Roundtrip, found 2 days ago
₩2,518,200
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,518,200 found 2 days ago
Air Canada
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,525,500 Roundtrip, found 2 days ago
₩2,525,500
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,525,500 found 2 days ago
Finnair
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,539,500 Roundtrip, found 2 days ago
₩2,539,500
Roundtrip
found 2 days ago
Select Finnair flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,539,500 found 2 days ago
Virgin Atlantic
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,547,900 Roundtrip, found 2 days ago
₩2,547,900
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,547,900 found 2 days ago
Delta
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,547,900 Roundtrip, found 2 days ago
₩2,547,900
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,547,900 found 2 days ago
Air Canada
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,549,600 Roundtrip, found 2 days ago
₩2,549,600
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,549,600 found 2 days ago
United
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,551,800 Roundtrip, found 2 days ago
₩2,551,800
Roundtrip
found 2 days ago
Select United flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,551,800 found 2 days ago
Air Canada
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,553,000 Roundtrip, found 2 days ago
₩2,553,000
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,553,000 found 2 days ago
Air Canada
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,556,900 Roundtrip, found 2 days ago
₩2,556,900
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,556,900 found 2 days ago
British Airways
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,581,800 Roundtrip, found 2 days ago
₩2,581,800
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,581,800 found 2 days ago
Finnair
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,583,700 Roundtrip, found 2 days ago
₩2,583,700
Roundtrip
found 2 days ago
Select Finnair flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,583,700 found 2 days ago
Finnair
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,597,800 Roundtrip, found 2 days ago
₩2,597,800
Roundtrip
found 2 days ago
Select Finnair flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,597,800 found 2 days ago
KLM
Mon, Apr 20 - Thu, Apr 30
PHL
Philadelphia
LHR
London
₩2,632,900 Roundtrip, found 2 days ago
₩2,632,900
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Apr 20 from Philadelphia to London, returning Thu, Apr 30, priced at ₩2,632,900 found 2 days ago

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

November is typically the cheapest month to fly

From ₩698,784 - ₩1,229,028 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 ₩2,513,100. 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

Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Roundtrip price
₩2,513,100
Distance
5656 km
Average flight time
12 hours 13 mins
*Available to Expedia members.