S$507 Cheap Flights from Philadelphia to London

View S$507 flight on Mon, 25 Aug, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to London

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Cheap Flights from Philadelphia to London (PHL-LON)

Prices were available within the past 7 days and start at S$507 for one-way flights and S$902 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 13 Jul - Tue, 22 Jul
PHL
Philadelphia
LHR
London
S$902 Return, found 6 days ago
S$902
Return
found 6 days ago
Select Delta flight, departing Sun, 13 Jul from Philadelphia to London, returning Tue, 22 Jul, priced at S$902 found 6 days ago
United
Sun, 10 Aug - Sun, 17 Aug
PHL
Philadelphia
LHR
London
S$944 Return, found 22 hours ago
S$944
Return
found 22 hours ago
Select United flight, departing Sun, 10 Aug from Philadelphia to London, returning Sun, 17 Aug, priced at S$944 found 22 hours ago
Lufthansa
Sun, 13 Jul - Tue, 22 Jul
PHL
Philadelphia
LHR
London
S$968 Return, found 6 days ago
S$968
Return
found 6 days ago
Select Lufthansa flight, departing Sun, 13 Jul from Philadelphia to London, returning Tue, 22 Jul, priced at S$968 found 6 days ago
KLM
Sun, 13 Jul - Tue, 22 Jul
PHL
Philadelphia
LHR
London
S$969 Return, found 6 days ago
S$969
Return
found 6 days ago
Select KLM flight, departing Sun, 13 Jul from Philadelphia to London, returning Tue, 22 Jul, priced at S$969 found 6 days ago
United
Sun, 13 Jul - Tue, 22 Jul
PHL
Philadelphia
LHR
London
S$992 Return, found 6 days ago
S$992
Return
found 6 days ago
Select United flight, departing Sun, 13 Jul from Philadelphia to London, returning Tue, 22 Jul, priced at S$992 found 6 days ago
United
Sun, 13 Jul - Tue, 22 Jul
PHL
Philadelphia
LHR
London
S$1,001 Return, found 6 days ago
S$1,001
Return
found 6 days ago
Select United flight, departing Sun, 13 Jul from Philadelphia to London, returning Tue, 22 Jul, priced at S$1,001 found 6 days ago
United
Sun, 10 Aug - Sun, 17 Aug
PHL
Philadelphia
LHR
London
S$1,008 Return, found 22 hours ago
S$1,008
Return
found 22 hours ago
Select United flight, departing Sun, 10 Aug from Philadelphia to London, returning Sun, 17 Aug, priced at S$1,008 found 22 hours ago
Lufthansa
Sun, 10 Aug - Sun, 17 Aug
PHL
Philadelphia
LHR
London
S$1,009 Return, found 22 hours ago
S$1,009
Return
found 22 hours ago
Select Lufthansa flight, departing Sun, 10 Aug from Philadelphia to London, returning Sun, 17 Aug, priced at S$1,009 found 22 hours ago
United
Sun, 13 Jul - Tue, 22 Jul
PHL
Philadelphia
LHR
London
S$1,026 Return, found 6 days ago
S$1,026
Return
found 6 days ago
Select United flight, departing Sun, 13 Jul from Philadelphia to London, returning Tue, 22 Jul, priced at S$1,026 found 6 days ago
Air Canada
Sun, 10 Aug - Sun, 17 Aug
PHL
Philadelphia
LHR
London
S$1,129 Return, found 22 hours ago
S$1,129
Return
found 22 hours ago
Select Air Canada flight, departing Sun, 10 Aug from Philadelphia to London, returning Sun, 17 Aug, priced at S$1,129 found 22 hours ago

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

October is typically the cheapest month to fly

From S$705 - S$1,068 per traveller.

Graph displaying average flight prices per month

Philadelphia to London route information
Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Return price
S$902
Distance
5656 km

Perfect flights from Philadelphia to London

Your Journey from Philadelphia to London

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Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including United, Air Canada, Delta, Virgin Atlantic, British Airways, Lufthansa, KLM. Our selection of flights from Philadelphia Intl. to LON-All Airports caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Philadelphia to London Flights

Experience the joy of finding cheap flights from Philadelphia Intl. to LON-All Airports that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$507 and roundtrip prices from S$902*.
 

Pre-Flight Essentials

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Experience the Vibrant London

Picture yourself stepping off the plane in London and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Philadelphia to London Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Philadelphia to London.
 

Beyond the Flight – Exploring London

With Expedia, your adventure extends beyond the flight. Explore London at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Philadelphia to London with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Philadelphia to London with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Explore a world of travel with Expedia

London Airports

London

Philadelphia to Heathrow
S$902.00
*Available to Expedia members.