American Airlines flights from London to Philadelphia

End of summer sale

Summer’s ending soon, but the savings are heating up. Find exclusive flight deals from American Airlines and British Airways and plan your perfect winter getaway to the US, Canada or Mexico.

Whether you're chasing New York's city lights, Miami's sunshine or Colorado's winter sports, this limited-time sale is your ticket to unforgettable experiences.

Book by 30 September 2025 to lock in your fare. Seats are limited, so act fast.

Terms and conditions apply.

Find our best flight offers

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From
To
Fare type
Travel dates
Price
Booking
London (LHR)Philadelphia (PHL)Round trip
I
Economy
03/12/2025 - 10/12/2025

from

£443Fare subject to changes

Updated: 8 hours ago

London (LON)Philadelphia (PHL)Round trip
I
Economy
11/11/2025 - 18/11/2025

from

£443Fare subject to changes

Updated: 5 hours ago

London (LCY)Philadelphia (PHL)Round trip
I
Economy
10/11/2025 - 17/11/2025

from

£474Fare subject to changes

Updated: 8 hours ago

*Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

Atlantic Joint Business partners

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More Destinations Together

Our partnership with British Airways gives you access to the U.S. and beyond.  When you fly with American or British Airways, you can earn and redeem AAdvantage® Miles, plus, enjoy the benefits of your AAdvantage® status on both airlines.

Find deals on London to Philadelphia flights

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*Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

American Airlines flights from London to Philadelphia

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