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Cheap flights from Philadelphia (PHL) to London (LCY)

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How to find the cheapest flight from Philadelphia (PHL) to London (LCY)

How to find the cheapest flight from Philadelphia (PHL) to London (LCY)
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How to find the cheapest flight from Philadelphia (PHL) to London (LCY)
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How to find the cheapest flight from Philadelphia (PHL) to London (LCY)
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Cheap flights from Philadelphia to London in December 2025 , January 2026

31 Dec - 27 Jan $ 1,002.00
PHL
Philadelphia
Frontier Airlines
2 STOPS
LCY
London
LCY
London
Frontier Airlines
3 STOPS
PHL
Philadelphia
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31 Dec - 30 Jan $ 1,078.00
PHL
Philadelphia
Frontier Airlines
2 STOPS
LCY
London
LCY
London
Frontier Airlines
2 STOPS
PHL
Philadelphia
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22 Dec - 06 Jan $ 3,090.00
PHL
Philadelphia
Lufthansa
1 STOPS
LCY
London
LCY
London
Lufthansa
1 STOPS
PHL
Philadelphia
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Last minute flights from Philadelphia to London

30 Dec - 01 Jan $ 1,539.00
PHL
Philadelphia
Lufthansa
2 STOPS
LCY
London
LCY
London
Lufthansa
1 STOPS
PHL
Philadelphia
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25 Dec - 01 Jan $ 1,543.00
PHL
Philadelphia
Lufthansa
1 STOPS
LCY
London
LCY
London
Lufthansa
1 STOPS
PHL
Philadelphia
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22 Dec - 01 Jan $ 2,448.00
PHL
Philadelphia
Lufthansa
1 STOPS
LCY
London
LCY
London
Lufthansa
1 STOPS
PHL
Philadelphia
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One-way flights to London from Philadelphia

6:36 PM - 5:10 PM
Lufthansa
2 Stops
18h 4m
PHL - LCY
$ 512
Kiwi
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9:15 PM - 5:15 PM
Aer Lingus
1 Stops
16h 35m
PHL - LCY
$ 896
Kiwi
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5:40 PM - 8:50 AM
Lufthansa
1 Stops
10h 40m
PHL - LCY
$ 1,021
Kiwi
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How to find the cheapest flight from Philadelphia (PHL) to London (LCY)

Related info for your journey
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How to find the cheapest flight from Philadelphia (PHL) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Philadelphia (PHL) to London (LCY)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.