S$591 Cheap Flights from Philadelphia to London

View S$591 flight on Sun, 23 Nov, 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$591 for one-way flights and S$736 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$736 Return, found 3 days ago
S$736
Return
found 3 days ago
Select Delta flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$736 found 3 days ago
KLM
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$770 Return, found 3 days ago
S$770
Return
found 3 days ago
Select KLM flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$770 found 3 days ago
Virgin Atlantic
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$800 Return, found 3 days ago
S$800
Return
found 3 days ago
Select Virgin Atlantic flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$800 found 3 days ago
KLM
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$803 Return, found 3 days ago
S$803
Return
found 3 days ago
Select KLM flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$803 found 3 days ago
Delta
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$806 Return, found 3 days ago
S$806
Return
found 3 days ago
Select Delta flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$806 found 3 days ago
Delta
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$834 Return, found 3 days ago
S$834
Return
found 3 days ago
Select Delta flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$834 found 3 days ago
Virgin Atlantic
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$840 Return, found 3 days ago
S$840
Return
found 3 days ago
Select Virgin Atlantic flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$840 found 3 days ago
Delta
Sat, 6 Sep - Sun, 14 Sep
PHL
Philadelphia
LHR
London
S$867 Return, found 3 days ago
S$867
Return
found 3 days ago
Select Delta flight, departing Sat, 6 Sep from Philadelphia to London, returning Sun, 14 Sep, priced at S$867 found 3 days ago
United
Thu, 9 Oct - Thu, 16 Oct
PHL
Philadelphia
LHR
London
S$1,006 Return, found 2 days ago
S$1,006
Return
found 2 days ago
Select United flight, departing Thu, 9 Oct from Philadelphia to London, returning Thu, 16 Oct, priced at S$1,006 found 2 days ago
Air Canada
Thu, 9 Oct - Thu, 16 Oct
PHL
Philadelphia
LHR
London
S$1,015 Return, found 2 days ago
S$1,015
Return
found 2 days ago
Select Air Canada flight, departing Thu, 9 Oct from Philadelphia to London, returning Thu, 16 Oct, priced at S$1,015 found 2 days ago

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

October is typically the cheapest month to fly

From S$617 - S$1,131 per traveller.

Graph displaying average flight prices per month

Philadelphia to London route information
Origin airport
Philadelphia Intl.
Destination airport
Heathrow
Return price
S$736
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 Delta, United, Virgin Atlantic, Air Canada, British Airways, Air France, 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$591 and roundtrip prices from S$736*.
 

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.

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London Airports

London

Philadelphia to Heathrow
S$735.90
*Available to Expedia members.