$468+ Cheap flights from London (LON) to Philadelphia (PHL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
LON — PHL
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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Find cheap flights from London to Philadelphia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from London to Philadelphia are usually found in January or February, booked 11 days in advance, depart on a Monday or Friday and return on a Wednesday
Cheap flight deals from London to Philadelphia
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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 September 13, 2026.
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 September 13, 2026.
This Expedia deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:25 pm -
1 stop10h 30m
Wed 10/146:45 pm -
Nonstop7h 05m
Deal found 9/9![British Airways logo]()
$791
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:30 am -
1 stop13h 35m
Sun 11/154:59 pm -
1 stop31h 56m
Deal found 9/9![United Airlines logo]()
$792
This Expedia deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:15 pm -
2 stops25h 50m
Tue 10/135:40 pm -
1 stop19h 15m
Deal found 9/8![Multiple Airlines logo]()
$793
This ChecknFly deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:40 pm -
1 stop22h 02m
Sun 10/256:46 pm -
1 stop33h 09m
Deal found 9/12![Lufthansa logo]()
$793
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:35 pm -
1 stop16h 07m
Mon 11/97:07 pm -
2 stops30h 43m
Deal found 9/9![Multiple Airlines logo]()
$793
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:50 am -
2 stops12h 54m
Wed 11/113:20 pm -
1 stop10h 50m
Deal found 9/8![Air Canada logo]()
$794
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:00 pm -
1 stop14h 43m
Sun 10/187:15 am -
1 stop21h 45m
Deal found 9/8![Multiple Airlines logo]()
$794
This Globehunters deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:05 pm -
1 stop29h 42m
Thu 10/87:00 am -
1 stop18h 35m
Deal found 9/9![Air Canada logo]()
$795
This Lufthansa deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:15 am -
1 stop11h 50m
Wed 10/145:40 pm -
1 stop19h 15m
Deal found 9/9![Lufthansa logo]()
$796
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:00 pm -
1 stop14h 43m
Wed 10/212:45 pm -
1 stop14h 15m
Deal found 9/8![Multiple Airlines logo]()
$796
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/159:30 am -
1 stop11h 35m
Mon 12/289:50 am -
1 stop17h 05m
Deal found 9/8![United Airlines logo]()
$797
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:00 pm -
3 stops24h 05m
Sun 9/275:40 pm -
2 stops18h 35m
Deal found 9/9![Multiple Airlines logo]()
$798
Best flights from London to PhiladelphiaDiscover carefully curated flight deals from London to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from London to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:25 pm -
1 stop11h 30m
Mon 11/25:40 pm -
1 stop12h 05m
Deal found 9/9![Multiple Airlines logo]()
$799
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:30 am -
1 stop13h 35m
Mon 10/1210:40 am -
1 stop15h 15m
Deal found 9/12![United Airlines logo]()
$802
This Lufthansa deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:15 am -
1 stop11h 50m
Wed 10/215:40 pm -
1 stop19h 15m
Deal found 9/8![Lufthansa logo]()
$803
This British Airways deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:50 am -
1 stop14h 20m
Wed 12/29:10 pm -
1 stop10h 30m
Deal found 9/10![British Airways logo]()
$814
This Scandinavian Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:05 am -
3 stops22h 47m
Sat 12/57:10 am -
2 stops29h 30m
Deal found 9/10![Scandinavian Airlines logo]()
$832
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:05 pm -
2 stops26h 27m
Mon 11/25:58 pm -
3 stops21h 37m
Deal found 9/8![TAP AIR PORTUGAL logo]()
$919
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1710:00 am -
2 stops18h 27m
Wed 1/201:20 pm -
2 stops14h 40m
Deal found 9/9![Delta logo]()
$921
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:30 am -
1 stop17h 25m
Mon 11/25:40 pm -
1 stop9h 50m
Deal found 9/8![Multiple Airlines logo]()
$804
This Lufthansa deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:30 am -
1 stop12h 35m
Wed 10/215:40 pm -
1 stop12h 00m
Deal found 9/8![Lufthansa logo]()
$806
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:30 am -
2 stops16h 12m
Sun 10/183:08 pm -
2 stops14h 17m
Deal found 9/10![United Airlines logo]()
$809
This British Airways deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:50 am -
1 stop12h 00m
Wed 11/48:50 pm -
1 stop10h 50m
Deal found 9/13![British Airways logo]()
$816
This Scandinavian Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:05 am -
3 stops20h 02m
Mon 11/24:00 pm -
2 stops19h 00m
Deal found 9/8![Scandinavian Airlines logo]()
$872
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:35 am -
1 stop17h 20m
Sat 10/316:40 pm -
1 stop10h 55m
Deal found 9/9![Multiple Airlines logo]()
$820
This British Airways deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:15 am -
Nonstop7h 55m
Mon 10/126:35 pm -
1 stop11h 35m
Deal found 9/11![British Airways logo]()
$829
This Lufthansa deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:15 am -
1 stop11h 50m
Thu 10/155:40 pm -
1 stop19h 15m
Deal found 9/10![Lufthansa logo]()
$832
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/32:05 pm -
1 stop12h 27m
Wed 10/73:25 pm -
1 stop13h 35m
Deal found 9/9![United Airlines logo]()
$841
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/154:35 pm -
2 stops31h 08m
Tue 12/299:29 am -
2 stops42h 56m
Deal found 9/8![TAP AIR PORTUGAL logo]()
$937
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:00 pm -
3 stops28h 47m
Mon 10/124:20 pm -
2 stops21h 30m
Deal found 9/10![Multiple Airlines logo]()
$820
This Lufthansa deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:30 pm -
1 stop26h 35m
Wed 10/215:40 pm -
1 stop19h 15m
Deal found 9/8![Lufthansa logo]()
$833
This British Airways deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:50 am -
1 stop12h 10m
Wed 11/188:50 pm -
1 stop10h 30m
Deal found 9/8![British Airways logo]()
$851
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:15 pm -
3 stops30h 30m
Thu 11/55:58 pm -
3 stops21h 37m
Deal found 9/12![TAP AIR PORTUGAL logo]()
$942
This Norse deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:00 pm -
1 stop15h 09m
Mon 9/287:15 am -
1 stop21h 45m
Deal found 9/11![Multiple Airlines logo]()
$820
This Lufthansa deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:15 am -
1 stop11h 50m
Wed 10/75:40 pm -
1 stop19h 15m
Deal found 9/12![Lufthansa logo]()
$834
This British Airways deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:15 am -
Nonstop7h 55m
Mon 10/127:35 pm -
Nonstop7h 15m
Deal found 9/9![British Airways logo]()
$858
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1710:40 am -
2 stops26h 59m
Wed 1/201:30 pm -
3 stops39h 30m
Deal found 9/9![TAP AIR PORTUGAL logo]()
$989
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:25 am -
1 stop14h 30m
Mon 10/58:25 pm -
1 stop14h 20m
Deal found 9/11![Multiple Airlines logo]()
$826
This Lufthansa deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:15 pm -
1 stop26h 50m
Thu 12/35:40 pm -
1 stop10h 35m
Deal found 9/10![Lufthansa logo]()
$834
This British Airways deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:10 pm -
Nonstop8h 05m
Mon 11/306:35 pm -
Nonstop7h 00m
Deal found 9/10![British Airways logo]()
$859
This Lufthansa deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:15 am -
1 stop11h 50m
Wed 10/75:40 pm -
1 stop19h 15m
Deal found 9/8![Lufthansa logo]()
$834
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:25 am -
1 stop14h 30m
Thu 10/158:25 pm -
1 stop11h 00m
Deal found 9/8![Multiple Airlines logo]()
$849
Last-minute flights from London to PhiladelphiaDiscover last-minute flight deals from London to Philadelphia. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from London to Philadelphia. Data last updated September 13, 2026 and is based on user searches.
This TravelUp deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:05 am -
1 stop15h 22m
Sun 9/273:25 pm -
1 stop10h 05m
Deal found 9/12![Multiple Airlines logo]()
$798
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:00 pm -
3 stops24h 05m
Sun 9/275:40 pm -
2 stops18h 35m
Deal found 9/9![Multiple Airlines logo]()
$798
This Globehunters deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:05 pm -
1 stop29h 42m
Thu 10/87:00 am -
1 stop18h 35m
Deal found 9/13![Air Canada logo]()
$794
This Expedia deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:15 pm -
2 stops25h 50m
Tue 10/135:40 pm -
1 stop19h 15m
Deal found 9/8![Multiple Airlines logo]()
$793
This Cheapflightsfares deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:05 pm -
2 stops25h 00m
Sun 10/185:40 pm -
2 stops14h 20m
Deal found 9/9![SWISS logo]()
$797
This Expedia deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:25 pm -
1 stop10h 30m
Wed 10/146:45 pm -
Nonstop7h 05m
Deal found 9/9![British Airways logo]()
$791
This Lufthansa deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:15 am -
1 stop11h 50m
Wed 10/145:40 pm -
1 stop19h 15m
Deal found 9/9![Lufthansa logo]()
$796
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:00 pm -
1 stop14h 43m
Sun 10/187:15 am -
1 stop21h 45m
Deal found 9/8![Multiple Airlines logo]()
$794
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:00 pm -
1 stop14h 43m
Wed 10/212:45 pm -
1 stop14h 15m
Deal found 9/8![Multiple Airlines logo]()
$796
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:25 pm -
1 stop11h 30m
Mon 11/25:40 pm -
1 stop12h 05m
Deal found 9/9![Multiple Airlines logo]()
$799
This ChecknFly deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:40 pm -
1 stop22h 02m
Sun 10/256:46 pm -
1 stop33h 09m
Deal found 9/12![Lufthansa logo]()
$793
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:30 am -
1 stop17h 02m
Mon 11/210:54 am -
1 stop14h 01m
Deal found 9/12![United Airlines logo]()
$799
One-way flights from London to PhiladelphiaSearch for one-way flight options from London to Philadelphia. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from London to Philadelphia. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:05 am -
2 stops37h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:50 pm -
3 stops24h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:35 pm -
2 stops26h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$470
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:00 am -
1 stop26h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$470
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:50 pm -
3 stops24h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$471
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/78:50 pm -
3 stops24h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:35 pm -
2 stops31h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:55 am -
3 stops35h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:00 pm -
1 stop24h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3011:35 am -
3 stops33h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:50 pm -
3 stops48h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:15 pm -
3 stops27h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$477
Find flight deals from London to Philadelphia
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $791 (Expedia) |
One-way from | $468 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $888 |
Good round-trip deal | $834 or less |
Good one-way deal | $659 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from London to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 13, 2026.
Use the filters below to find and compare flights from London to Philadelphia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonPhiladelphia
SEN London Southend - PHL Philadelphia
SENPHL
London Southend
Mon 11/30
11:35 am-4:10 pm
3 stops33h 35m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$476
LondonPhiladelphia
SEN London Southend - PHL Philadelphia
SENPHL
London Southend
Thu 11/26
7:15 am-4:10 pm
3 stops37h 55m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$477
LondonPhiladelphia
LGW London Gatwick - PHL Philadelphia
LGWPHL
London Gatwick
Thu 11/26
9:00 pm-4:10 pm
3 stops48h 10m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$499
LondonPhiladelphia
STN London Stansted - PHL Philadelphia
STNPHL
London Stansted
Thu 11/26
9:45 pm-4:10 pm
1 stop23h 25m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$506
LondonPhiladelphia
LTN London Luton - PHL Philadelphia
LTNPHL
London Luton
Thu 11/26
6:05 pm-4:10 pm
1 stop27h 05m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$506
LondonPhiladelphia
STN London Stansted - PHL Philadelphia
STNPHL
London Stansted
Wed 12/9
7:15 am-4:10 pm
1 stop13h 55m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$521
LondonPhiladelphia
SEN London Southend - PHL Philadelphia
SENPHL
London Southend
Tue 10/27
3:30 pm-5:10 pm
3 stops53h 40m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$524
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Fri 10/9
2:10 pm-11:11 pm
2 stops38h 01m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$534
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Mon 12/7
5:30 pm-4:05 pm
1 stop27h 35m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$543
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Wed 11/4
9:20 am-9:11 pm
1 stop16h 51m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$551
Showing 1-10 of 60 resultsSorted by cheapest first
Compare providers for flights from London to Philadelphia
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Philadelphia in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on London-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-Philadelphia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from London to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from London with our price prediction graph.
LON-PHL
LTN-PHL
LHR-PHL
LCY-PHL
LGW-PHL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London to Philadelphia
LON-PHL
LTN-PHL
LHR-PHL
LCY-PHL
LGW-PHL
What is the cheapest month to book a flight from London to Philadelphia?
Currently, January is the cheapest month in which you can book a flight from London to Philadelphia (average of $772). Flying from London to Philadelphia in August is currently the most expensive (average of $1,150). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to PHL?
Find hourly flight availability from London to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 13, 2026.
When flying from London to Philadelphia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from London to Philadelphia
Explore weekly flight availability from London to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 13, 2026.
The most flights from LON to PHL are scheduled on a Friday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).
How much does it cost to fly round-trip from London to Philadelphia?
Airfare is typical for this route at the moment.
London to Philadelphia flights typically cost between $753 and $949 in October.The cheapest round-trip price found within the last 5 days was $791 on British Airways (Oct 7-Oct 14).
How often are flights from London to Philadelphia delayed?
About 16% of weekly flights between London and Philadelphia have experienced delays in the past year, with the average delay time being 156 minutes.
What is the most punctual flight time for London to Philadelphia flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Philadelphia flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
How far ahead should I book a flight from London to Philadelphia?
The best time to book flights from London to Philadelphia is 11 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
The best insider tips for London to Philadelphia flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London to Philadelphia trip
Our travel experts
Reviews of airlines servicing Philadelphia
Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated September 13, 2026.
Get a feel of what it's like to fly with Aer Lingus,American Airlines, andIberia from London to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Boarding
7.5
Entertainment
7.0
Food
6.7
Comfort
7.2
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Crew
8.1
Boarding
7.5
Entertainment
7.0
Food
6.7
Comfort
7.2
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Crew
8.1
Boarding
7.5
Entertainment
7.0
Food
6.7
Comfort
7.2
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Crew
8.1
Boarding
7.5
Entertainment
7.0
Food
6.7
Comfort
7.2
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Crew
8.1
Boarding
7.5
Entertainment
7.0
Food
6.7
Comfort
7.2
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Related info for your journey
Find useful and relevant information for your journey from London to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
Reading
King of Prussia
Camden
Wildwood Crest
Cherry Hill
Ocean City
Lewes
Plymouth Meeting
Wyomissing
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Vineland
Millville
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Complete your trip
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London and Philadelphia flights
Browse other London and Philadelphia flight options. Last updated on September 13, 2026.
Other flights from London
Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
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Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from London to Philadelphia
Discover the top 3 airlines that operate flights from London to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$610 | Average$849 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$614 | Average$813 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$700 | Average$1,075 | FlexibilityNo cancel fee | On-timeN/A |