₩542,800 Cheap Flights from Philadelphia (PHL) to London (LHR)

View ₩542,800 flight on Sun, Feb 22, 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 ₩542,800 for one-way flights and ₩930,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩930,500 Roundtrip, found 6 hours ago
₩930,500
Roundtrip
found 6 hours ago
Select British Airways flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩930,500 found 6 hours ago
United
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩938,500 Roundtrip, found 6 hours ago
₩938,500
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩938,500 found 6 hours ago
Delta
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩941,800 Roundtrip, found 6 hours ago
₩941,800
Roundtrip
found 6 hours ago
Select Delta flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩941,800 found 6 hours ago
Air Canada
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩943,400 Roundtrip, found 6 hours ago
₩943,400
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩943,400 found 6 hours ago
United
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩945,500 Roundtrip, found 6 hours ago
₩945,500
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩945,500 found 6 hours ago
United
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩950,400 Roundtrip, found 6 hours ago
₩950,400
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩950,400 found 6 hours ago
British Airways
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩974,200 Roundtrip, found 6 hours ago
₩974,200
Roundtrip
found 6 hours ago
Select British Airways flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩974,200 found 6 hours ago
British Airways
Sun, Feb 22 - Sun, Mar 1
PHL
Philadelphia
LHR
London
₩1,065,400 Roundtrip, found 6 hours ago
₩1,065,400
Roundtrip
found 6 hours ago
Select British Airways flight, departing Sun, Feb 22 from Philadelphia to London, returning Sun, Mar 1, priced at ₩1,065,400 found 6 hours ago
Air Canada
Sat, Mar 7 - Sun, Mar 15
PHL
Philadelphia
LHR
London
₩1,081,800 Roundtrip, found 4 days ago
₩1,081,800
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sat, Mar 7 from Philadelphia to London, returning Sun, Mar 15, priced at ₩1,081,800 found 4 days ago
Virgin Atlantic
Sat, Mar 7 - Sun, Mar 15
PHL
Philadelphia
LHR
London
₩1,142,000 Roundtrip, found 4 days ago
₩1,142,000
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Sat, Mar 7 from Philadelphia to London, returning Sun, Mar 15, priced at ₩1,142,000 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 ₩701,943 - ₩1,224,136 per traveler.
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Flights from Philadelphia (PHL) to London (LHR)
Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, American Airlines, British Airways, Delta, Finnair, Iberia, Swiss International Air Lines, United
Roundtrip price
₩930,500
Distance
5656 km

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.

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 ₩930,500. 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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