Cheap Flights from Philadelphia to London

Prices were available within the past 7 days and starts at £151 for one-way flights and £485 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Reviews from verified customers

Dec 12, 2019


Jun 3, 2018

Food offering was poor quality but everything else was fine

Dec 16, 2017

Pleasant flight, comfortable seats with adjustable bits on both sides to rest your head more securely. The touch screen was responsive and looked new. Staff were all great. Well recommended!

May 31, 2017

Not happy when we came to collect our luggage as it had been put on another flight so spent a wasted 2hrs !! This let AA down

Apr 27, 2017

Baggage was not transferred automatically on outward connecting flight, but was on inward flight. On inward flight it was not possible to checkin online for the Ba flight or even at the checkin for the first AA flight.

Mar 4, 2017

Great connection in Philadelphia, from D12 to D14

Feb 26, 2017

Great service

Dec 23, 2016

excellent staff, esp pre-booked disability assistance

Dec 12, 2016

The staff on board were amazing, so friendly and helpful. This was one of the best flights I have been on and would definitely use Delta again.

Dec 9, 2016

Thanks for a smooth flight.

Philadelphia to London route information

Origin Airport Philadelphia Intl.
Destination Airport Heathrow
Airlines Serving United
Flight Price £485
Distance 5,656 km

Cheap PHL to LHR Flights

Philadelphia to London Flights

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