Cheap flights to Philadelphia – Compare and Save

— PHL
29 Apr — 6 May1
1 adult

Flights to Philadelphia in 2025

Find the latest flights to Philadelphia in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 24 April 2025.

Return from

£340

One-way from

£423

Popular in

August

Cheapest in

February

Average price

£566

Good round-trip deal

£562 or less

Good one-way deal

£524 or less
United Airlines
  • United Airlines
  • 27/5-30/6
  • 4 total stops
  • 62h 24m total
  • London to Philadelphia
31/5
  • 31/5
  • 3 total stops
  • 33h 18m total
  • London to Philadelphia
Highest demand for flights based on searches. 10% potential increase in price (£48 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for return flights in April 2025
Price to beat on a round-trip flight from London to Philadelphia.
Price to beat on a one-way flight from London to Philadelphia.

Find flight deals to Philadelphia

Cheapest flights to Philadelphia
Explore the most affordable flight options available to Philadelphia. Find the lowest fares based on data from user searches, with prices last updated on 24 April 2025.

Tue 27/508:45LHR - PHL
2 stops29h 54mUnited Airlines
Mon 30/607:30PHL - LHR
2 stops32h 30mUnited Airlines
Deal found 22/4£340
Sun 7/909:30LHR - PHL
2 stops17h 59mAir Canada
Thu 25/915:25PHL - LHR
2 stops15h 25mAir Canada
Deal found 21/4£341
Wed 18/606:50LHR - PHL
2 stops12h 43mAir Canada
Tue 24/607:30PHL - LHR
2 stops18h 00mAir Canada
Deal found 22/4£342
Fri 16/514:05LHR - PHL
2 stops24h 40mUnited Airlines
Sun 25/506:15PHL - LHR
1 stop19h 40mUnited Airlines
Deal found 22/4£342
Sat 3/509:30LHR - PHL
2 stops17h 58mAir Canada
Sun 18/511:05PHL - LHR
2 stops14h 25mAir Canada
Deal found 22/4£343
Fri 9/509:30LHR - PHL
1 stop11h 30mMultiple Airlines
Tue 13/511:05PHL - LHR
2 stops17h 55mMultiple Airlines
Deal found 22/4£347
Sat 30/814:05LHR - PHL
1 stop13h 02mAir Canada
Sun 7/910:35PHL - LHR
2 stops14h 55mAir Canada
Deal found 22/4£348
Sat 30/809:30LHR - PHL
1 stop10h 07mAir Canada
Sun 7/910:35PHL - LHR
2 stops14h 55mAir Canada
Deal found 23/4£349
Mon 5/509:30LHR - PHL
1 stop17h 36mAir Canada
Mon 12/511:05PHL - LHR
2 stops17h 55mAir Canada
Deal found 21/4£351
Mon 5/509:30LHR - PHL
1 stop10h 06mAir Canada
Sun 18/511:05PHL - LHR
2 stops17h 55mAir Canada
Deal found 22/4£353
Sat 30/809:30LHR - PHL
2 stops17h 59mAir Canada
Sun 7/909:45PHL - LHR
2 stops15h 50mAir Canada
Deal found 22/4£354
Sat 24/514:05LHR - PHL
2 stops29h 04mUnited Airlines
Sun 1/619:59PHL - LHR
1 stop9h 41mUnited Airlines
Deal found 22/4£354

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