Cheap flights from London to Philadelphia – Compare and Save
LON — PHL
12 Oct — 19 Oct1
Find flight deals from London to Philadelphia
Cheapest flights from London to PhiladelphiaExplore the most affordable flight options available from London to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.
Explore the most affordable flight options available from London to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.
Sat 11/1006:50LHR - PHL
2 stops19h 48mAir Canada
Sun 12/1009:20PHL - LHR
1 stop19h 15mAir Canada
Deal found 11/9£448
Fri 7/1114:00LGW - PHL
2 stops26h 29mMultiple Airlines
Thu 4/1207:00PHL - LGW
1 stop22h 00mMultiple Airlines
Deal found 11/9£448
Thu 25/908:15STN - PHL
1 stop15h 45mMultiple Airlines
Sun 28/920:30PHL - STN
1 stop15h 25mMultiple Airlines
Deal found 11/9£449
Fri 5/1206:50LHR - PHL
2 stops12h 57mAir Canada
Tue 6/115:30PHL - LHR
1 stop10h 40mAir Canada
Deal found 12/9£449
Sun 26/1007:40LHR - PHL
2 stops17h 41mUnited Airlines
Sun 2/1120:00PHL - LHR
2 stops30h 10mUnited Airlines
Deal found 11/9£450
Mon 3/1114:00LGW - PHL
1 stop16h 24mMultiple Airlines
Sat 6/1211:50PHL - LGW
2 stops17h 15mMultiple Airlines
Deal found 11/9£450
Wed 24/910:05LHR - PHL
Nonstop8h 00mBritish Airways
Wed 1/1022:15PHL - LHR
Nonstop7h 05mBritish Airways
Deal found 12/9£450
Mon 22/912:05LHR - PHL
2 stops14h 33mAir Canada
Mon 29/915:25PHL - LHR
2 stops15h 25mAir Canada
Deal found 12/9£451
Fri 28/1113:30LHR - PHL
2 stops14h 26mMultiple Airlines
Wed 3/1213:15PHL - LHR
2 stops12h 55mMultiple Airlines
Deal found 10/9£452
Sun 21/906:50LHR - PHL
2 stops12h 48mAir Canada
Sun 28/910:35PHL - LHR
2 stops14h 55mAir Canada
Deal found 10/9£453
Sun 21/909:30LHR - PHL
1 stop17h 08mAir Canada
Sun 28/909:20PHL - LHR
1 stop16h 10mAir Canada
Deal found 11/9£453
Thu 11/1214:00LGW - PHL
1 stop22h 29mMultiple Airlines
Thu 8/122:00PHL - LGW
1 stop31h 00mMultiple Airlines
Deal found 11/9£453