$226+ Cheap flights from Pennsylvania to London (LON)
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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Cheapest flights from Pennsylvania to LondonExplore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from Pennsylvania to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. 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 11/165:40 pm -
1 stop13h 20m
Wed 11/186:50 am -
2 stops15h 05m
Deal found 9/22![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/165:35 pm -
1 stop13h 25m
Wed 11/1811:05 am -
2 stops34h 52m
Deal found 9/21![United Airlines logo]()
$736
This Delta deal was found by Cheapflights users on 9/22. 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.
Wed 11/42:30 pm -
1 stop16h 10m
Wed 11/1110:00 am -
2 stops17h 27m
Deal found 9/22![Delta logo]()
$736
This United Airlines deal was found by Cheapflights users on 9/20. 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 12/75:39 pm -
1 stop13h 21m
Wed 12/911:05 am -
2 stops34h 53m
Deal found 9/20![United Airlines logo]()
$736
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/2011:44 am -
1 stop14h 31m
Wed 11/116:30 am -
2 stops14h 48m
Deal found 9/22![Delta logo]()
$737
This Delta deal was found by Cheapflights users on 9/21. 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.
Wed 11/1112:09 pm -
2 stops13h 16m
Tue 11/1711:30 am -
2 stops17h 20m
Deal found 9/21![Delta logo]()
$741
This United Airlines deal was found by Cheapflights users on 9/20. 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 9/215:36 pm -
1 stop13h 19m
Wed 9/236:50 am -
2 stops19h 10m
Deal found 9/20![United Airlines logo]()
$744
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/2011:44 am -
1 stop14h 31m
Tue 10/274:00 pm -
1 stop22h 59m
Deal found 9/22![Delta logo]()
$744
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Wed 9/232:52 pm -
2 stops14h 23m
Fri 9/259:30 am -
2 stops33h 29m
Deal found 9/19![United Airlines logo]()
$747
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/135:10 pm -
2 stops14h 55m
Tue 10/206:35 pm -
2 stops21h 58m
Deal found 9/22![Delta logo]()
$748
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/25:43 pm -
1 stop33h 47m
Mon 10/56:50 am -
2 stops19h 10m
Deal found 9/20![United Airlines logo]()
$750
This United Airlines deal was found by Cheapflights users on 9/22. 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 9/255:54 pm -
1 stop33h 36m
Mon 9/286:50 am -
2 stops15h 02m
Deal found 9/22![United Airlines logo]()
$750
Best flights from Pennsylvania to LondonDiscover carefully curated flight deals from Pennsylvania to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from Pennsylvania to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. 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 11/165:40 pm -
1 stop13h 20m
Wed 11/186:50 am -
2 stops15h 05m
Deal found 9/22![United Airlines logo]()
$736
This Delta deal was found by Cheapflights users on 9/21. 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.
Wed 11/1112:09 pm -
2 stops13h 16m
Tue 11/1711:30 am -
2 stops17h 20m
Deal found 9/21![Delta logo]()
$741
This KLM deal was found by Cheapflights users on 9/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:30 pm -
1 stop12h 20m
Wed 11/1110:50 am -
1 stop16h 37m
Deal found 9/22![KLM logo]()
$744
This British Airways deal was found by Cheapflights users on 9/21. 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 2/16:35 pm -
Nonstop7h 00m
Thu 2/111:10 pm -
Nonstop8h 05m
Deal found 9/21![British Airways logo]()
$793
This Norse deal was found by Cheapflights users on 9/22. 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.
Thu 10/297:35 am -
1 stop19h 15m
Sun 11/112:35 pm -
1 stop25h 55m
Deal found 9/22![Multiple Airlines logo]()
$801
This SWISS deal was found by Cheapflights users on 9/18. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:07 pm -
2 stops22h 43m
Sun 11/88:40 am -
2 stops17h 09m
Deal found 9/18![SWISS logo]()
$869
This Finnair deal was found by Cheapflights users on 9/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/97:50 pm -
Nonstop7h 00m
Sun 2/2810:35 am -
Nonstop8h 15m
Deal found 9/21![Finnair logo]()
$893
This JetBlue deal was found by Cheapflights users on 9/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:27 am -
1 stop15h 28m
Mon 11/169:20 am -
1 stop16h 51m
Deal found 9/22![JetBlue logo]()
$895
This American Airlines deal was found by Cheapflights users on 9/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:41 am -
2 stops14h 24m
Thu 11/129:55 am -
1 stop17h 58m
Deal found 9/20![American Airlines logo]()
$899
This Turkish Airlines deal was found by Cheapflights users on 9/19. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops22h 10m
Wed 12/26:30 am -
2 stops22h 26m
Deal found 9/19![Turkish Airlines logo]()
$954
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/22. 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.
Fri 11/135:58 pm -
2 stops16h 47m
Mon 11/164:35 pm -
2 stops33h 02m
Deal found 9/22![TAP AIR PORTUGAL logo]()
$966
This United Airlines deal was found by Cheapflights users on 9/22. 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 11/165:35 pm -
1 stop13h 25m
Wed 11/1811:05 am -
2 stops34h 52m
Deal found 9/22![United Airlines logo]()
$736
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/136:13 am -
1 stop19h 57m
Tue 10/206:35 pm -
2 stops21h 58m
Deal found 9/22![Delta logo]()
$748
This KLM deal was found by Cheapflights users on 9/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:03 pm -
1 stop14h 12m
Thu 10/2910:50 am -
1 stop15h 29m
Deal found 9/19![KLM logo]()
$794
This United Airlines deal was found by Cheapflights users on 9/18. 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 12/75:39 pm -
1 stop13h 21m
Wed 12/911:05 am -
2 stops34h 53m
Deal found 9/18![United Airlines logo]()
$737
This Finnair deal was found by Cheapflights users on 9/18. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:10 pm -
1 stop13h 30m
Mon 10/127:00 pm -
1 stop23h 05m
Deal found 9/18![Multiple Airlines logo]()
$823
This Delta deal was found by Cheapflights users on 9/21. 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.
Sun 12/136:39 am -
1 stop18h 46m
Wed 2/36:30 am -
2 stops21h 16m
Deal found 9/21![Delta logo]()
$776
This JetBlue deal was found by Cheapflights users on 9/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:27 am -
1 stop15h 28m
Wed 11/119:20 am -
1 stop12h 48m
Deal found 9/22![JetBlue logo]()
$895
This British Airways deal was found by Cheapflights users on 9/22. 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 11/108:50 pm -
1 stop10h 50m
Tue 11/176:50 am -
1 stop12h 10m
Deal found 9/22![British Airways logo]()
$901
This SWISS deal was found by Cheapflights users on 9/18. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:07 pm -
2 stops22h 43m
Tue 11/248:40 am -
2 stops17h 09m
Deal found 9/18![SWISS logo]()
$943
This Turkish Airlines deal was found by Cheapflights users on 9/22. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:30 am -
2 stops30h 00m
Sat 10/3110:05 am -
2 stops42h 36m
Deal found 9/22![Turkish Airlines logo]()
$954
This Finnair deal was found by Cheapflights users on 9/20. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:50 pm -
1 stop10h 30m
Mon 11/168:40 am -
1 stop11h 45m
Deal found 9/20![Multiple Airlines logo]()
$872
This Delta deal was found by Cheapflights users on 9/18. 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 10/156:03 pm -
1 stop14h 12m
Thu 10/2911:45 am -
2 stops28h 20m
Deal found 9/18![Delta logo]()
$793
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/19. 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 12/39:30 am -
3 stops30h 05m
Wed 12/94:35 pm -
2 stops31h 08m
Deal found 9/19![TAP AIR PORTUGAL logo]()
$979
This JetBlue deal was found by Cheapflights users on 9/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:30 am -
1 stop16h 25m
Sat 12/59:20 am -
1 stop14h 23m
Deal found 9/21![JetBlue logo]()
$895
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/98:00 pm -
1 stop29h 55m
Mon 10/126:55 am -
2 stops21h 49m
Deal found 9/23![United Airlines logo]()
$820
This British Airways deal was found by Cheapflights users on 9/18. 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.
Sun 10/186:35 pm -
1 stop10h 45m
Tue 10/276:50 am -
1 stop12h 00m
Deal found 9/18![British Airways logo]()
$903
This Delta deal was found by Cheapflights users on 9/21. 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 11/1212:30 pm -
1 stop14h 20m
Wed 11/1812:40 pm -
1 stop16h 10m
Deal found 9/21![Delta logo]()
$794
This JetBlue deal was found by Cheapflights users on 9/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:35 pm -
1 stop10h 20m
Mon 11/99:20 am -
1 stop12h 48m
Deal found 9/18![JetBlue logo]()
$896
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/37:30 pm -
1 stop30h 25m
Mon 10/123:30 pm -
1 stop29h 35m
Deal found 9/22![United Airlines logo]()
$823
Last-minute flights from Pennsylvania to LondonDiscover last-minute flight deals from Pennsylvania to London. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to London. Data last updated September 23, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 9/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:01 pm -
1 stop10h 54m
Thu 9/246:50 am -
2 stops15h 14m
Deal found 9/18![Multiple Airlines logo]()
$764
This KAYAK deal was found by Cheapflights users on 9/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:21 am -
2 stops17h 39m
Thu 9/246:50 am -
2 stops15h 14m
Deal found 9/18![Brussels Airlines logo]()
$768
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Wed 9/232:52 pm -
2 stops14h 23m
Fri 9/259:30 am -
2 stops33h 29m
Deal found 9/19![United Airlines logo]()
$747
This United Airlines deal was found by Cheapflights users on 9/22. 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 9/255:54 pm -
1 stop33h 36m
Mon 9/286:50 am -
2 stops15h 02m
Deal found 9/22![United Airlines logo]()
$750
This KAYAK deal was found by Cheapflights users on 9/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:20 am -
1 stop21h 40m
Sun 9/276:50 am -
2 stops19h 10m
Deal found 9/18![Multiple Airlines logo]()
$764
This KAYAK deal was found by Cheapflights users on 9/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:43 pm -
2 stops22h 42m
Sun 9/276:50 am -
2 stops19h 10m
Deal found 9/18![Lufthansa logo]()
$768
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/25:43 pm -
1 stop33h 47m
Mon 10/56:50 am -
2 stops19h 10m
Deal found 9/20![United Airlines logo]()
$750
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/135:10 pm -
2 stops14h 55m
Tue 10/206:35 pm -
2 stops21h 58m
Deal found 9/22![Delta logo]()
$748
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/2011:44 am -
1 stop14h 31m
Wed 11/116:30 am -
2 stops14h 48m
Deal found 9/22![Delta logo]()
$737
This Delta deal was found by Cheapflights users on 9/22. 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.
Tue 10/2011:44 am -
1 stop14h 31m
Tue 10/274:00 pm -
1 stop22h 59m
Deal found 9/22![Delta logo]()
$744
This KLM deal was found by Cheapflights users on 9/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:13 pm -
2 stops14h 27m
Thu 11/1211:30 am -
2 stops17h 20m
Deal found 9/22![Multiple Airlines logo]()
$767
This KLM deal was found by Cheapflights users on 9/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:13 pm -
2 stops14h 27m
Fri 11/136:30 am -
2 stops16h 07m
Deal found 9/22![KLM logo]()
$768
One-way flights from Pennsylvania to LondonSearch for one-way flight options from Pennsylvania to London. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from Pennsylvania to London. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/19. 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.
Tue 12/14:38 pm -
2 stops57h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Wed 10/1412:35 pm -
2 stops40h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$264
This Mytrip deal was found by Cheapflights users on 9/22. 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.
Sun 10/188:25 pm -
2 stops21h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 12/38:34 am -
2 stops44h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Wed 12/28:34 am -
2 stops17h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$276
This Ovago deal was found by Cheapflights users on 9/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/248:25 am -
1 stop21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![British Airways logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 10/118:25 pm -
2 stops17h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Wed 10/2112:35 pm -
2 stops40h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$285
This Booking.com deal was found by Cheapflights users on 9/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:25 pm -
1 stop10h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Icelandair logo]()
$293
This Mytrip deal was found by Cheapflights users on 9/22. 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.
Sun 10/188:25 pm -
1 stop13h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Icelandair logo]()
$294
This KAYAK deal was found by Cheapflights users on 9/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/98:09 pm -
1 stop29h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![British Airways logo]()
$296
This FlightHub deal was found by Cheapflights users on 9/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:25 pm -
1 stop10h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Icelandair logo]()
$305
Find flight deals from Pennsylvania to London
Keep the following information in mind while searching for Pennsylvania to London flight deals. Data was last updated September 23, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $736 (United Airlines) |
One-way from | $226 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $984 |
Good round-trip deal | $953 or less |
Good one-way deal | $376 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Pennsylvania to London 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 23, 2026.
Use the filters below to find and compare flights from Pennsylvania to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaLondon
PHL Philadelphia - LGW London Gatwick
PHLLGW
Philadelphia
Tue 12/1
4:38 pm-6:50 am
2 stops57h 12m
London Gatwick
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$226
PittsburghLondon
PIT Pittsburgh - LGW London Gatwick
PITLGW
Pittsburgh
Sun 10/11
8:25 pm-8:55 pm
2 stops19h 30m
London Gatwick
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$293
PittsburghLondon
PIT Pittsburgh - LHR London Heathrow
PITLHR
Pittsburgh
Fri 10/16
8:25 pm-11:55 am
1 stop10h 30m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$305
PittsburghLondon
PIT Pittsburgh - LGW London Gatwick
PITLGW
Pittsburgh
Sun 10/18
8:25 pm-8:35 pm
3 stops19h 10m
London Gatwick
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$317
PhiladelphiaLondon
PHL Philadelphia - LGW London Gatwick
PHLLGW
Philadelphia
Tue 10/13
5:22 pm-10:00 am
2 stops35h 38m
London Gatwick
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$318
PhiladelphiaLondon
PHL Philadelphia - LGW London Gatwick
PHLLGW
Philadelphia
Wed 10/14
5:45 pm-10:00 am
1 stop35h 15m
London Gatwick
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$322
PittsburghLondon
PIT Pittsburgh - LHR London Heathrow
PITLHR
Pittsburgh
Mon 3/15
10:15 pm-9:40 am
Nonstop7h 25m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$325
PittsburghLondon
PIT Pittsburgh - LHR London Heathrow
PITLHR
Pittsburgh
Wed 3/17
10:15 pm-9:40 am
Nonstop7h 25m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$325
PhiladelphiaLondon
PHL Philadelphia - LHR London Heathrow
PHLLHR
Philadelphia
Mon 11/16
3:35 pm-6:55 am
1 stop10h 20m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$329
PittsburghLondon
PIT Pittsburgh - LHR London Heathrow
PITLHR
Pittsburgh
Sun 3/21
3:00 pm-9:55 am
2 stops14h 55m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$329
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Pennsylvania to London
Have a flexible travel schedule? Discover the best time to fly to London from Pennsylvania with our price prediction graph.
PHL-LGW
PIT-LGW
PHL-LHR
PIT-LHR
SCE-LHR
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 Pennsylvania to London
USPA-LON
PHL-LGW
PIT-LGW
PHL-LHR
PIT-LHR
What is the cheapest month to book a flight from Pennsylvania to London?
Currently, February is the cheapest month in which you can book a flight from Pennsylvania to London (average of $727). Flying from Pennsylvania to London in June is currently the most expensive (average of $1,412). 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 PA to LON?
Find hourly flight availability from Pennsylvania to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 23, 2026.
When flying from Pennsylvania to London, 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 Pennsylvania to London
Explore weekly flight availability from Pennsylvania to London. 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 23, 2026.
The most flights from USPA to LON are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from Pennsylvania to London?
Airfare is below average for this route at the moment.
Pennsylvania to London flights typically cost between $824 and $1,124 in October.The cheapest round-trip price found within the last 5 days was $787 on British Airways (Oct 12-Oct 20).
How far ahead should I book a flight from Pennsylvania to London?
To ensure you get the cheapest price possible for a flight from Pennsylvania to London, you should look to book at least 22 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Related info for your journey
Find useful and relevant information for your journey from Pennsylvania to London. 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 London?
Book flights to London if you plan to visit one of these locationsIlford
Dorking
Gatwick
Hounslow
Harrow
Wembley
Southend-on-Sea
Basingstoke
Watford
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow
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Alternative routes for Pennsylvania to London
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Complete your trip
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Search flights from Pennsylvania to London by cabin class
Find flights from Pennsylvania to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to London
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.
Pennsylvania and London flights
Browse other Pennsylvania and London flight options. Last updated on September 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Pennsylvania to London flights
Consider these flights traveling from Pennsylvania to London.
Top 10 airlines flying from Pennsylvania to London
Discover the top 10 airlines that operate flights from Pennsylvania to London. 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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$563 | Average$999 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$583 | Average$919 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$588 | Average$992 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$602 | Average$1,053 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$609 | Average$899 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$626 | Average$1,063 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$640 | Average$814 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$647 | Average$1,536 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$659 | Average$872 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$687 | Average$740 | FlexibilityNo cancel fee | On-time76% |