Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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

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.
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.

Cheap flights from London to Philadelphia in November , December 2025

28 Nov - 05 Dec $ 1,080.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
Pick dates
28 Nov - 11 Dec $ 1,936.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
Pick dates
24 Nov - 11 Dec $ 2,231.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
Pick dates

Last minute flights from London to Philadelphia

26 Nov - 01 Dec $ 1,127.00
LCY
London
United Airlines
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
2 STOPS
LCY
London
Pick dates
25 Nov - 01 Dec $ 1,220.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
Pick dates
26 Nov - 01 Dec $ 1,220.00
LCY
London
Aer Lingus
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Aer Lingus
1 STOPS
LCY
London
Pick dates

One-way flights to Philadelphia from London

1:15 PM - 9:56 PM
Frontier Airlines
3 Stops
40h 36m
LCY - PHL
$ 807
Kiwi
Pick dates
7:20 PM - 1:00 PM
Swiss International Air Lines
2 Stops
49h 45m
LCY - PHL
$ 926
Kiwi
Pick dates
9:10 AM - 1:00 PM
Aer Lingus
1 Stops
11h 50m
LCY - PHL
$ 1,533
Kiwi
Pick dates

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

Related info for your journey
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.
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.