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

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

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

31 Dec - 22 Jan $ 836.00
LCY
London
Swiss International Air Lines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Swiss International Air Lines
2 STOPS
LCY
London
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16 Dec - 13 Jan $ 1,754.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
2 STOPS
LCY
London
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18 Dec - 07 Jan $ 2,296.00
LCY
London
Lufthansa
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Lufthansa
1 STOPS
LCY
London
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Last minute flights from London to Philadelphia

24 Dec - 01 Jan $ 1,256.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
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24 Dec - 01 Jan $ 1,330.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
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23 Dec - 01 Jan $ 1,569.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
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One-way flights to Philadelphia from London

5:40 PM - 6:15 PM
Swiss International Air Lines
2 Stops
32h 51m
LCY - PHL
$ 843
Kiwi
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5:40 PM - 6:15 PM
Swiss International Air Lines
2 Stops
32h 51m
LCY - PHL
$ 843
Kiwi
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9:20 AM - 6:15 PM
Swiss International Air Lines
2 Stops
17h 11m
LCY - PHL
$ 849
Kiwi
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How to find the cheapest flight from London (LCY) to Philadelphia (PHL)

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