Find Cheap flights from Philadelphia (PHL) to London (LHR) from $480.01

Browse round trip flights from Philadelphia to London on Flyus.com.

Cheap flights from
PHL → LHR
from $480.01

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Philadelphia to London

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Flyus » Cheap Flights » Pennsylvania
Philadelphia (PHL) » United Kingdom » PHL to LHR

Good to Know - Flights from Philadelphia to London

Low Season:
February
Best time to beat the crowds

High Season:
September
Most popular time to fly

Good Deal:
$ 480.01
or less (round trip)

Cheapest Day of the Month to Book Flights

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Top Tips for Finding Cheap Flights from Philadelphia to London

Looking for cheap airfare from Philadelphia to London? 25% of our users found round-trip tickets to London for the following price or less: $ 480.01 Book at least 4 weeks before departure in order to get a below-average price. High season is considered to be September. The cheapest month to fly from Philadelphia to London is February. Enter your preferred departure airport and travel dates into the search form above to unlock the latest Philadelphia to London flight deals.

FAQs - Booking from Philadelphia to London flights

How long is the flight from Philadelphia to London?
A flight from Philadelphia to London takes 10hours.

What is the cheapest flight Philadelphia to London?:
The cheapest flight Philadelphia to London found on flyus.com in the last 72 hours was $480.01 round-trip.

Which airlines fly to London?:

• Aer Lingus P.L.C.

• TAP Air Portugal

• Icelandair

• United Airlines

• Air Canada

• Lufthansa

• SWISS

• SAS Scandinavian Airlines

• American Airlines

• British Airways

• Iberia

Find cheap flights from Philadelphia to London and book discounted airfare from different cities all over the United States. Explore airline ticket deals on flight routes all over the World! At Flyus, we take pride in helping you discover and book the best flight deals for your next trip at the cheapest price. We make booking flights from different departures easy and provide you with peace of mind with our Best Purchase Guarantee.

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Cheapest Flights
from Philadelphia, United States (PHL) to:

London, United Kingdom (LHR)

Mar 01, 25 - Mar 09, 25

$480.01

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London, United Kingdom (LHR)

Jan 26, 25 - Feb 11, 25

$480.01

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London, United Kingdom (LHR)

Mar 05, 25 - Mar 18, 25

$483.81

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London, United Kingdom (LHR)

Mar 09, 25 - Mar 19, 25

$483.81

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London, United Kingdom (LHR)

Feb 24, 25 - Mar 11, 25

$483.81

Search