$303+ Cheap flights from Maine to Heathrow (LHR)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
Jun 15 — Jun 221
Round-trip
1 adult, Economy
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Cheapest flights from Maine to HeathrowExplore the most affordable flight options available from Maine to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.
Explore the most affordable flight options available from Maine to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.
This LEVEL deal was found by Cheapflights users on 5/10. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:55 pm
BOS
- LHR
1 stop29h 15m
LEVEL
Sat 10/178:50 pm
LHR
- BOS
1 stop29h 55m
LEVEL
Deal found 5/10![LEVEL logo]()
$685
This Gotogate deal was found by Cheapflights users on 5/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:50 pm
BOS
- LHR
1 stop18h 30m
Icelandair
Fri 10/169:25 pm
LHR
- BOS
1 stop26h 25m
Icelandair
Deal found 5/10![Icelandair logo]()
$686
This Gotogate deal was found by Cheapflights users on 5/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:50 pm
BOS
- LHR
1 stop10h 05m
Icelandair
Mon 9/79:25 pm
LHR
- BOS
1 stop26h 25m
Icelandair
Deal found 5/11![Icelandair logo]()
$689
This Icelandair deal was found by Cheapflights users on 5/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:50 pm
BOS
- LHR
1 stop10h 00m
Icelandair
Sat 11/2812:15 pm
LHR
- BOS
1 stop10h 35m
Icelandair
Deal found 5/11![Icelandair logo]()
$690
This Gotogate deal was found by Cheapflights users on 5/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:50 pm
BOS
- LHR
1 stop10h 05m
Icelandair
Sat 10/3112:15 pm
LHR
- BOS
1 stop10h 35m
Icelandair
Deal found 5/10![Icelandair logo]()
$691
This LEVEL deal was found by Cheapflights users on 5/10. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1911:35 pm
BOS
- LHR
1 stop28h 35m
LEVEL
Tue 7/288:50 pm
LHR
- BOS
1 stop29h 15m
LEVEL
Deal found 5/10![LEVEL logo]()
$692
This Gotogate deal was found by Cheapflights users on 5/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:00 pm
BOS
- LHR
1 stop16h 20m
Icelandair
Sun 10/181:05 pm
LHR
- BOS
1 stop10h 45m
Icelandair
Deal found 5/10![Icelandair logo]()
$694
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:50 pm
BOS
- LHR
1 stop18h 30m
Icelandair
Tue 10/201:05 pm
LHR
- BOS
1 stop10h 45m
Icelandair
Deal found 5/11![Icelandair logo]()
$695
This Gotogate deal was found by Cheapflights users on 5/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:50 pm
BOS
- LHR
1 stop10h 05m
Icelandair
Sun 10/258:35 pm
LHR
- BOS
1 stop26h 15m
Icelandair
Deal found 5/10![Icelandair logo]()
$696
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:50 pm
BOS
- LHR
1 stop18h 30m
Icelandair
Thu 10/89:25 pm
LHR
- BOS
1 stop26h 25m
Icelandair
Deal found 5/11![Icelandair logo]()
$697
This The Travel House deal was found by Cheapflights users on 5/11. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:50 pm
BOS
- LHR
1 stop10h 05m
Icelandair
Sat 12/1212:15 pm
LHR
- BOS
1 stop10h 35m
Icelandair
Deal found 5/11![Icelandair logo]()
$698
This FlightHub deal was found by Cheapflights users on 5/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:50 pm
BOS
- LHR
1 stop10h 00m
Icelandair
Wed 11/2512:15 pm
LHR
- BOS
1 stop10h 35m
Icelandair
Deal found 5/11![Icelandair logo]()
$700
Best flights from Maine to HeathrowDiscover carefully curated flight deals from Maine to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 16, 2026.
Discover carefully curated flight deals from Maine to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 16, 2026.
This British Airways deal was found by Cheapflights users on 5/13. 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.
Sun 7/199:55 pm
BOS
- LHR
Nonstop6h 45m
British Airways
Mon 8/178:10 pm
LHR
- BOS
Nonstop7h 25m
British Airways
Deal found 5/13![British Airways logo]()
$793
This Delta deal was found by Cheapflights users on 5/15. 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.
Sun 8/911:10 pm
BOS
- LHR
Nonstop6h 30m
Delta
Sat 8/226:15 am
LHR
- BOS
1 stop12h 24m
Delta
Deal found 5/15![Delta logo]()
$795
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sun 7/196:25 pm
BOS
- LHR
1 stop21h 35m
United Airlines
Fri 8/148:40 am
LHR
- BOS
1 stop16h 15m
United Airlines
Deal found 5/12![United Airlines logo]()
$816
This KLM deal was found by Cheapflights users on 5/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:00 pm
BGR
- LHR
1 stop12h 50m
Multiple Airlines
Tue 9/157:45 pm
LHR
- BGR
2 stops23h 38m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$878
This KLM deal was found by Cheapflights users on 5/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:30 pm
BOS
- LHR
Nonstop6h 45m
KLM
Sat 8/89:40 am
LHR
- BOS
Nonstop7h 39m
KLM
Deal found 5/11![KLM logo]()
$892
This Virgin Atlantic deal was found by Cheapflights users on 5/12. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:05 pm
BOS
- LHR
Nonstop6h 40m
Virgin Atlantic
Fri 6/126:55 pm
LHR
- BOS
Nonstop7h 25m
Virgin Atlantic
Deal found 5/12![Virgin Atlantic logo]()
$923
This British Airways deal was found by Cheapflights users on 5/11. 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.
Wed 7/225:46 pm
BOS
- LHR
1 stop10h 24m
British Airways
Mon 8/175:35 pm
LHR
- BOS
Nonstop7h 30m
British Airways
Deal found 5/11![British Airways logo]()
$797
This Delta deal was found by Cheapflights users on 5/15. 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.
Tue 11/1010:00 am
PWM
- LHR
1 stop19h 15m
Delta
Tue 11/1710:00 am
LHR
- PWM
2 stops18h 49m
Delta
Deal found 5/15![Delta logo]()
$869
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Tue 9/16:00 am
BGR
- LHR
2 stops19h 55m
United Airlines
Tue 9/156:50 am
LHR
- BGR
2 stops16h 44m
United Airlines
Deal found 5/14![United Airlines logo]()
$895
This KLM deal was found by Cheapflights users on 5/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:05 pm
BOS
- LHR
1 stop10h 45m
KLM
Sun 8/29:40 am
LHR
- BOS
Nonstop7h 39m
KLM
Deal found 5/11![KLM logo]()
$897
This British Airways deal was found by Cheapflights users on 5/11. 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.
Fri 7/246:01 am
BOS
- LHR
1 stop10h 39m
British Airways
Mon 8/38:10 pm
LHR
- BOS
Nonstop7h 25m
British Airways
Deal found 5/11![British Airways logo]()
$897
This Delta deal was found by Cheapflights users on 5/13. 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.
Thu 8/66:05 am
BOS
- LHR
1 stop9h 05m
Delta
Tue 8/116:55 pm
LHR
- BOS
Nonstop7h 25m
Delta
Deal found 5/13![Delta logo]()
$897
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:15 pm
PWM
- LHR
2 stops13h 50m
United Airlines
Tue 11/246:50 am
LHR
- PWM
2 stops14h 19m
United Airlines
Deal found 5/11![United Airlines logo]()
$899
This KLM deal was found by Cheapflights users on 5/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:35 pm
PWM
- LHR
1 stop14h 15m
KLM
Mon 11/24:10 pm
LHR
- PWM
1 stop12h 39m
KLM
Deal found 5/11![KLM logo]()
$899
This Virgin Atlantic deal was found by Cheapflights users on 5/15. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:14 pm
PWM
- LHR
1 stop18h 01m
Virgin Atlantic
Thu 8/138:40 am
LHR
- PWM
2 stops19h 40m
Virgin Atlantic
Deal found 5/15![Virgin Atlantic logo]()
$992
This KLM deal was found by Cheapflights users on 5/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:35 pm
PWM
- LHR
1 stop13h 15m
KLM
Tue 11/244:10 pm
LHR
- PWM
1 stop12h 39m
KLM
Deal found 5/11![KLM logo]()
$899
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:58 am
BGR
- LHR
2 stops20h 42m
United Airlines
Mon 9/1411:05 am
LHR
- BGR
2 stops36h 29m
United Airlines
Deal found 5/11![United Airlines logo]()
$908
This Delta deal was found by Cheapflights users on 5/13. 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.
Sat 9/263:00 pm
BGR
- LHR
2 stops17h 50m
Delta
Sat 10/106:35 pm
LHR
- BGR
1 stop24h 46m
Delta
Deal found 5/13![Delta logo]()
$914
This KLM deal was found by Cheapflights users on 5/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:50 pm
PWM
- LHR
1 stop10h 55m
KLM
Tue 11/1711:55 am
LHR
- PWM
1 stop16h 54m
KLM
Deal found 5/13![KLM logo]()
$899
This United Airlines deal was found by Cheapflights users on 5/10. 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 7/166:05 am
BOS
- LHR
1 stop9h 35m
United Airlines
Thu 8/61:50 pm
LHR
- BOS
1 stop11h 05m
United Airlines
Deal found 5/10![United Airlines logo]()
$910
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:45 am
BOS
- LHR
1 stop23h 55m
United Airlines
Sun 7/262:05 pm
LHR
- BOS
1 stop29h 36m
United Airlines
Deal found 5/11![United Airlines logo]()
$918
This KLM deal was found by Cheapflights users on 5/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:00 pm
BOS
- LHR
Nonstop6h 45m
KLM
Sat 6/136:55 pm
LHR
- BOS
Nonstop7h 25m
KLM
Deal found 5/10![KLM logo]()
$922
This Delta deal was found by Cheapflights users on 5/15. 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 6/256:57 pm
PWM
- LHR
1 stop13h 18m
Delta
Mon 6/296:30 am
LHR
- PWM
2 stops23h 22m
Delta
Deal found 5/15![Delta logo]()
$1,059
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:59 pm
PWM
- LHR
1 stop14h 21m
Delta
Tue 6/169:55 am
LHR
- PWM
2 stops19h 57m
Delta
Deal found 5/12![Delta logo]()
$1,064
This KLM deal was found by Cheapflights users on 5/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:45 pm
PWM
- LHR
1 stop13h 25m
KLM
Thu 8/134:20 pm
LHR
- PWM
1 stop13h 39m
KLM
Deal found 5/15![KLM logo]()
$1,021
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Wed 5/276:10 am
BGR
- LHR
1 stop10h 15m
United Airlines
Wed 6/36:50 am
LHR
- BGR
2 stops16h 30m
United Airlines
Deal found 5/15![United Airlines logo]()
$1,065
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Thu 7/96:10 am
BGR
- LHR
1 stop10h 10m
United Airlines
Sat 7/257:45 am
LHR
- BGR
1 stop15h 46m
United Airlines
Deal found 5/14![United Airlines logo]()
$1,094
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 7/106:10 am
BGR
- LHR
1 stop10h 15m
United Airlines
Sat 7/257:45 am
LHR
- BGR
1 stop15h 46m
United Airlines
Deal found 5/14![United Airlines logo]()
$1,094
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:15 pm
BGR
- LHR
1 stop20h 25m
United Airlines
Sun 7/197:45 am
LHR
- BGR
1 stop20h 30m
United Airlines
Deal found 5/11![United Airlines logo]()
$1,095
Last-minute flights from Maine to HeathrowDiscover last-minute flight deals from Maine to Heathrow. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Heathrow. Data last updated May 16, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 5/1511:34 am
PWM
- LHR
1 stop14h 11m
United Airlines
Sun 5/176:50 am
LHR
- PWM
2 stops22h 09m
United Airlines
Deal found 5/14![United Airlines logo]()
$960
This United Airlines deal was found by Cheapflights users on 5/14. 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 5/167:40 am
BGR
- LHR
2 stops18h 05m
United Airlines
Thu 5/286:50 am
LHR
- BGR
2 stops16h 30m
United Airlines
Deal found 5/14![United Airlines logo]()
$985
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Sun 5/177:40 am
BGR
- LHR
2 stops17h 50m
United Airlines
Tue 5/266:50 am
LHR
- BGR
2 stops16h 30m
United Airlines
Deal found 5/14![United Airlines logo]()
$988
This Mytrip deal was found by Cheapflights users on 5/10. 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.
Sat 5/235:45 pm
BOS
- LHR
3 stops34h 10m
Multiple Airlines
Wed 5/277:05 am
LHR
- BOS
2 stops17h 50m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$716
This Mytrip deal was found by Cheapflights users on 5/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:05 pm
BOS
- LHR
3 stops20h 30m
Multiple Airlines
Thu 5/287:05 am
LHR
- BOS
2 stops17h 50m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$719
This Mytrip deal was found by Cheapflights users on 5/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:40 pm
BOS
- LHR
3 stops24h 55m
Multiple Airlines
Tue 6/97:50 pm
LHR
- BOS
2 stops29h 05m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$717
This Mytrip deal was found by Cheapflights users on 5/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:40 pm
BOS
- LHR
3 stops24h 55m
Multiple Airlines
Wed 6/107:50 pm
LHR
- BOS
2 stops29h 05m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$722
This Mytrip deal was found by Cheapflights users on 5/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:45 am
BOS
- LHR
3 stops29h 50m
Multiple Airlines
Fri 6/127:50 pm
LHR
- BOS
2 stops26h 50m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$718
This Mytrip deal was found by Cheapflights users on 5/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:10 am
BOS
- LHR
3 stops35h 25m
Multiple Airlines
Wed 6/107:50 pm
LHR
- BOS
3 stops23h 57m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$735
This LEVEL deal was found by Cheapflights users on 5/11. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1111:55 pm
BOS
- LHR
1 stop28h 15m
LEVEL
Tue 6/169:55 am
LHR
- BOS
1 stop16h 05m
LEVEL
Deal found 5/11![LEVEL logo]()
$731
This LEVEL deal was found by Cheapflights users on 5/13. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1610:50 pm
BOS
- LHR
1 stop29h 20m
LEVEL
Tue 6/239:55 am
LHR
- BOS
1 stop16h 05m
LEVEL
Deal found 5/13![LEVEL logo]()
$713
This LEVEL deal was found by Cheapflights users on 5/15. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1610:50 pm
BOS
- LHR
1 stop29h 20m
LEVEL
Mon 6/228:50 pm
LHR
- BOS
1 stop29h 10m
LEVEL
Deal found 5/15![LEVEL logo]()
$732
One-way flights from Maine to HeathrowSearch for one-way flight options from Maine to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
Search for one-way flight options from Maine to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
This FlightHub deal was found by Cheapflights users on 5/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:00 pm
BOS
- LHR
1 stop31h 55m
Icelandair
Deal found 5/14![Icelandair logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 8/1210:55 pm
BOS
- LHR
1 stop16h 10m
Iberia
Deal found 5/14![Iberia logo]()
$304
This Mytrip deal was found by Cheapflights users on 5/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:00 pm
BOS
- LHR
1 stop31h 55m
Icelandair
Deal found 5/15![Icelandair logo]()
$307
This Trip.com deal was found by Cheapflights users on 5/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:50 pm
BOS
- LHR
1 stop10h 05m
Icelandair
Deal found 5/15![Icelandair logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Mon 8/104:45 pm
BOS
- LHR
2 stops18h 40m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$310
This Iberia deal was found by Cheapflights users on 5/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3011:35 pm
BOS
- LHR
1 stop15h 30m
Iberia
Deal found 5/15![Iberia logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:50 pm
BOS
- LHR
1 stop18h 30m
Icelandair
Deal found 5/15![Icelandair logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Sat 7/1111:00 pm
BOS
- LHR
1 stop31h 55m
Icelandair
Deal found 5/13![Icelandair logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:50 pm
BOS
- LHR
1 stop10h 05m
Icelandair
Deal found 5/15![Icelandair logo]()
$316
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:50 pm
BOS
- LHR
1 stop10h 05m
Icelandair
Deal found 5/14![Icelandair logo]()
$317
This LEVEL deal was found by Cheapflights users on 5/13. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1911:35 pm
BOS
- LHR
1 stop15h 30m
LEVEL
Deal found 5/13![LEVEL logo]()
$318
This United Airlines deal was found by Cheapflights users on 5/15. 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 8/226:53 pm
PWM
- LHR
1 stop20h 47m
United Airlines
Deal found 5/15![United Airlines logo]()
$340
Find flight deals from Maine to Heathrow
Keep the following information in mind while searching for Maine to Heathrow flight deals. Data was last updated May 16, 2026.
Round-trip from | $685 (LEVEL) |
|---|---|
One-way from | $303 (FlightHub) |
Popular in | July |
Cheapest in | October |
Average price | $731 |
Cheapflights Fare Finder
Customize your flight search to find flights from Maine to Heathrow 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 2,558,603 searches. Data last updated May 16, 2026.
Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonLondon
BOS - LHR
BOSLHR
Boston Logan Intl
Sun 7/19
9:55 pm-9:40 am
Nonstop6h 45m
London Heathrow
Mon 8/17
8:10 pm-10:35 pm
Nonstop7h 25m
$793
BostonLondon
BOS - LHR
BOSLHR
Boston Logan Intl
Sun 8/9
11:10 pm-10:40 am
Nonstop6h 30m
London Heathrow
Sat 8/22
6:15 am-1:39 pm
1 stop12h 24m
$795
BostonLondon
BOS - LHR
BOSLHR
Boston Logan Intl
Wed 7/22
5:46 pm-9:10 am
1 stop10h 24m
London Heathrow
Mon 8/17
5:35 pm-8:05 pm
Nonstop7h 30m
$797
BostonLondon
BOS - LHR
BOSLHR
Boston Logan Intl
Sun 7/19
6:25 pm-9:00 pm
1 stop21h 35m
London Heathrow
Fri 8/14
8:40 am-7:55 pm
1 stop16h 15m
$816
PortlandLondon
PWM - LHR
PWMLHR
Portland
Tue 11/10
10:00 am-10:15 am
1 stop19h 15m
London Heathrow
Tue 11/17
10:00 am-11:49 pm
2 stops18h 49m
$869
BangorLondon
BGR - LHR
BGRLHR
Bangor
Tue 9/1
3:00 pm-8:50 am
1 stop12h 50m
London Heathrow
Tue 9/15
7:45 pm-2:23 pm
2 stops23h 38m
$878
BostonLondon
BOS - LHR
BOSLHR
Boston Logan Intl
Thu 7/30
9:30 pm-9:15 am
Nonstop6h 45m
London Heathrow
Sat 8/8
9:40 am-12:19 pm
Nonstop7h 39m
$892
BangorLondon
BGR - LHR
BGRLHR
Bangor
Tue 9/1
6:00 am-6:55 am
2 stops19h 55m
London Heathrow
Tue 9/15
6:50 am-6:34 pm
2 stops16h 44m
$895
BostonLondon
BOS - LHR
BOSLHR
Boston Logan Intl
Wed 7/29
5:05 pm-8:50 am
1 stop10h 45m
London Heathrow
Sun 8/2
9:40 am-12:19 pm
Nonstop7h 39m
$897
BostonLondon
BOS - LHR
BOSLHR
Boston Logan Intl
Fri 7/24
6:01 am-9:40 pm
1 stop10h 39m
London Heathrow
Mon 8/3
8:10 pm-10:35 pm
Nonstop7h 25m
$897
Showing 1-10 of 54 resultsSorted by cheapest first
Best time to book a flight from Maine to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Maine with our price prediction graph.
BOS-LHR
PWM-LHR
BGR-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 Maine to London Heathrow Airport
USME-LHR
BOS-LHR
PWM-LHR
BGR-LHR
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Maine to Heathrow. 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 Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Dorking
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Maine to Heathrow
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Complete your trip
Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Maine to Heathrow by cabin class
Find flights from Maine to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 16, 2026.
Maine and Heathrow flights
Browse other Maine and Heathrow flight options. Last updated on May 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Maine to Heathrow flights
Consider these flights traveling from Maine to Heathrow.
Top 2 airlines flying from Maine to Heathrow
Discover the top 2 airlines that operate flights from Maine to Heathrow. 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 2,558,603 searches. Data last updated May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$648 | Average$798 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$757 | Average$1,118 | FlexibilityNo cancel fee | On-time71% |