$329+ Cheap flights from Maine 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
Nov 16 — Nov 231
Round-trip
1 adult, Economy
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Find cheap flights from Maine to London with Cheapflights
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Maine to London
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Cheapest flights from Maine to LondonExplore the most affordable flight options available from Maine to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 17, 2026.
Explore the most affordable flight options available from Maine to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 17, 2026.
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/163:41 pm -
2 stops19h 39m
Wed 11/189:00 am -
2 stops43h 21m
Deal found 10/17![United Airlines logo]()
$758
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/95:08 pm -
1 stop33h 47m
Thu 11/126:50 am -
2 stops17h 12m
Deal found 10/16![United Airlines logo]()
$765
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/1611:00 am -
1 stop16h 25m
Wed 11/186:50 am -
2 stops32h 29m
Deal found 10/16![United Airlines logo]()
$765
This Cheapflightsfares deal was found by Cheapflights users on 10/16. 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.
Sat 11/76:30 am -
1 stop10h 10m
Sat 11/148:05 am -
1 stop20h 38m
Deal found 10/16![JetBlue logo]()
$827
This JetBlue deal was found by Cheapflights users on 10/15. 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 11/166:30 am -
1 stop10h 10m
Wed 11/1812:20 pm -
1 stop16h 23m
Deal found 10/15![JetBlue logo]()
$833
This Cheapflightsfares deal was found by Cheapflights users on 10/17. 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.
Sat 10/246:00 am -
1 stop9h 45m
Sat 10/318:05 am -
1 stop19h 38m
Deal found 10/17![JetBlue logo]()
$845
This Air France deal was found by Cheapflights users on 10/14. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:45 pm -
2 stops14h 55m
Wed 11/188:25 pm -
2 stops23h 40m
Deal found 10/14![Multiple Airlines logo]()
$857
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/72:05 pm -
1 stop11h 35m
Sat 11/1412:05 pm -
2 stops16h 16m
Deal found 10/16![United Airlines logo]()
$863
This United Airlines deal was found by Cheapflights users on 10/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/286:00 am -
1 stop10h 20m
Thu 12/36:50 am -
2 stops17h 22m
Deal found 10/13![United Airlines logo]()
$864
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:10 pm -
1 stop12h 15m
Fri 12/411:45 am -
2 stops32h 20m
Deal found 10/13![Delta logo]()
$864
This United Airlines deal was found by Cheapflights users on 10/17. 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 10/246:00 am -
1 stop21h 55m
Sat 10/316:50 am -
2 stops16h 12m
Deal found 10/17![United Airlines logo]()
$865
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/1410:50 am -
2 stops15h 20m
Sat 11/2112:05 pm -
2 stops16h 16m
Deal found 10/15![United Airlines logo]()
$866
Best flights from Maine to LondonDiscover carefully curated flight deals from Maine to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 17, 2026.
Discover carefully curated flight deals from Maine to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 17, 2026.
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/163:41 pm -
2 stops19h 39m
Wed 11/189:00 am -
2 stops43h 21m
Deal found 10/17![United Airlines logo]()
$758
This KLM deal was found by Cheapflights users on 10/14. 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.
Sun 2/76:00 am -
1 stop21h 05m
Sun 2/218:40 am -
2 stops18h 21m
Deal found 10/14![KLM logo]()
$868
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:10 pm -
2 stops16h 40m
Fri 12/411:45 am -
2 stops32h 20m
Deal found 10/13![Delta logo]()
$872
This BusinessClass deal was found by Cheapflights users on 10/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2712:01 pm -
2 stops15h 24m
Fri 12/47:30 am -
2 stops17h 00m
Deal found 10/13![Multiple Airlines logo]()
$1,326
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/1611:00 am -
1 stop16h 25m
Wed 11/186:50 am -
2 stops32h 29m
Deal found 10/17![United Airlines logo]()
$765
This Delta deal was found by Cheapflights users on 10/15. 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 1/76:00 am -
1 stop19h 25m
Thu 1/148:40 am -
2 stops18h 43m
Deal found 10/15![Delta logo]()
$875
This United Airlines deal was found by Cheapflights users on 10/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:05 pm -
1 stop15h 45m
Sat 11/149:00 am -
2 stops19h 21m
Deal found 10/13![United Airlines logo]()
$863
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/1410:50 am -
2 stops15h 20m
Sat 11/2112:05 pm -
2 stops16h 16m
Deal found 10/15![United Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/155:50 am -
2 stops20h 20m
Sat 11/2112:05 pm -
2 stops16h 16m
Deal found 10/15![United Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/295:50 am -
2 stops20h 20m
Sun 12/69:00 am -
2 stops19h 24m
Deal found 10/15![United Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/308:49 am -
2 stops20h 16m
Mon 12/712:05 pm -
2 stops16h 19m
Deal found 10/16![United Airlines logo]()
$870
This United Airlines deal was found by Cheapflights users on 10/15. 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 1/116:00 am -
1 stop10h 20m
Thu 1/146:50 am -
2 stops19h 13m
Deal found 10/15![United Airlines logo]()
$876
This United Airlines deal was found by Cheapflights users on 10/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:00 am -
1 stop16h 25m
Fri 12/49:10 am -
1 stop30h 29m
Deal found 10/13![United Airlines logo]()
$899
Last-minute flights from Maine to LondonDiscover last-minute flight deals from Maine to London. Data last updated October 17, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to London. Data last updated October 17, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/17. 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.
Sat 10/246:00 am -
1 stop9h 45m
Sat 10/318:05 am -
1 stop19h 38m
Deal found 10/17![JetBlue logo]()
$845
This United Airlines deal was found by Cheapflights users on 10/17. 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 10/245:15 am -
2 stops23h 15m
Sat 10/316:50 am -
2 stops16h 12m
Deal found 10/17![United Airlines logo]()
$865
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:10 pm -
1 stop12h 15m
Fri 12/411:45 am -
2 stops32h 20m
Deal found 10/13![Delta logo]()
$864
This Cheapflightsfares deal was found by Cheapflights users on 10/16. 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.
Sat 11/76:30 am -
1 stop10h 10m
Sat 11/148:05 am -
1 stop20h 38m
Deal found 10/16![JetBlue logo]()
$827
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/72:05 pm -
1 stop11h 35m
Sat 11/1412:05 pm -
2 stops16h 16m
Deal found 10/16![United Airlines logo]()
$863
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/95:08 pm -
1 stop33h 47m
Thu 11/126:50 am -
2 stops17h 12m
Deal found 10/16![United Airlines logo]()
$765
This Air France deal was found by Cheapflights users on 10/14. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:45 pm -
2 stops14h 55m
Wed 11/188:25 pm -
2 stops23h 40m
Deal found 10/14![Multiple Airlines logo]()
$857
This United Airlines deal was found by Cheapflights users on 10/15. 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 11/1410:50 am -
2 stops15h 20m
Sat 11/2112:05 pm -
2 stops16h 16m
Deal found 10/15![United Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/163:41 pm -
2 stops19h 39m
Wed 11/189:00 am -
2 stops43h 21m
Deal found 10/17![United Airlines logo]()
$758
This United Airlines deal was found by Cheapflights users on 10/16. 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 11/1611:00 am -
1 stop16h 25m
Wed 11/186:50 am -
2 stops32h 29m
Deal found 10/16![United Airlines logo]()
$765
This JetBlue deal was found by Cheapflights users on 10/15. 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 11/166:30 am -
1 stop10h 10m
Wed 11/1812:20 pm -
1 stop16h 23m
Deal found 10/15![JetBlue logo]()
$833
This United Airlines deal was found by Cheapflights users on 10/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/286:00 am -
1 stop10h 20m
Thu 12/36:50 am -
2 stops17h 22m
Deal found 10/13![United Airlines logo]()
$864
One-way flights from Maine to LondonSearch for one-way flight options from Maine to London. Find affordable one-way fares based on user searches. Data last updated October 17, 2026.
Search for one-way flight options from Maine to London. Find affordable one-way fares based on user searches. Data last updated October 17, 2026.
This American Airlines deal was found by Cheapflights users on 10/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1512:37 pm -
2 stops15h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![American Airlines logo]()
$329
This Cheapflightsfares deal was found by Cheapflights users on 10/14. 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.
Sun 11/86:30 am -
1 stop22h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![JetBlue logo]()
$331
This deal was found by Cheapflights users on 10/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:40 pm -
1 stop13h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/2211:00 am -
1 stop29h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![United Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/308:49 am -
2 stops23h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![United Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/2111:00 am -
1 stop28h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![United Airlines logo]()
$386
This Air France deal was found by Cheapflights users on 10/14. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:45 pm -
2 stops14h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Air France logo]()
$403
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/286:00 am -
2 stops23h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/273:45 pm -
1 stop12h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Delta logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/83:10 pm -
3 stops23h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$461
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/1110:07 am -
3 stops26h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$540
This Kiwi.com deal was found by Cheapflights users on 10/17. 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 11/225:30 pm -
3 stops36h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Multiple Airlines logo]()
$551
Find flight deals from Maine to London
Keep the following information in mind while searching for Maine to London flight deals. Data was last updated October 17, 2026.
Round-trip from | $749 (United Airlines) |
|---|---|
One-way from | $329 (Delta) |
Popular in | July |
Cheapest in | February |
Average price | $938 |
Cheapflights Fare Finder
Customize your flight search to find flights from Maine 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 October 17, 2026.
Use the filters below to find and compare flights from Maine to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BangorLondon
BGR Bangor - LHR London Heathrow
BGRLHR
Bangor
Wed 3/31
6:00 am-7:25 am
1 stop20h 25m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$329
BangorLondon
BGR Bangor - LHR London Heathrow
BGRLHR
Bangor
Wed 3/31
8:00 am-6:45 am
2 stops17h 45m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$329
Quickest round-trip
BangorLondon
BGR Bangor - LHR London Heathrow
BGRLHR
Bangor
Mon 3/15
5:55 pm-7:50 am
1 stop9h 55m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$329
PortlandLondon
PWM Portland - LHR London Heathrow
PWMLHR
Portland
Sun 11/8
6:30 am-9:30 am
1 stop22h 00m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$331
PortlandLondon
PWM Portland - LHR London Heathrow
PWMLHR
Portland
Mon 11/30
7:35 pm-10:50 am
1 stop10h 15m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$341
PortlandLondon
PWM Portland - LHR London Heathrow
PWMLHR
Portland
Sun 11/8
3:40 pm-10:25 am
1 stop13h 45m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$341
BangorLondon
BGR Bangor - LHR London Heathrow
BGRLHR
Bangor
Sun 11/22
11:00 am-9:20 pm
1 stop29h 20m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$352
PortlandLondon
PWM Portland - LHR London Heathrow
PWMLHR
Portland
Sat 11/28
6:00 am-10:50 am
2 stops23h 50m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$406
PortlandLondon
PWM Portland - LHR London Heathrow
PWMLHR
Portland
Sun 11/8
3:10 pm-8:05 pm
3 stops23h 55m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$461
PortlandLondon
PWM Portland - LHR London Heathrow
PWMLHR
Portland
Mon 11/16
3:41 pm-4:20 pm
2 stops19h 39m
London Heathrow
Wed 11/18
9:00 am-11:21 pm
2 stops43h 21m
$758
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Best time to book a flight from Maine to London
Have a flexible travel schedule? Discover the best time to fly to London from Maine with our price prediction graph.
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Estimated round-trip price
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Cheapflights Insights
Everything you need to know about your flight from Maine to London
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Related info for your journey
Find useful and relevant information for your journey from Maine 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
Wembley
Harrow
Southend-on-Sea
Basingstoke
Watford
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Slough
Eastbourne
Stansted
Sutton
Luton
Harlow
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Alternative routes for Maine to London
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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 October 17, 2026.
Maine and London flights
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Maine to London flights
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Top 2 airlines flying from Maine to London
Discover the top 2 airlines that operate flights from Maine 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 October 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$752 | Average$1,192 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$757 | Average$1,197 | FlexibilityNo cancel fee | On-time71% |