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$234+ Cheap flights from Maine to London (LON)

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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Cheap flight deals from Maine to London

Cheapest flights from Maine to London
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 April 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/19. 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 10/1511:00 pm
BOS
-
LTN
1 stop14h 05m
Multiple Airlines
Wed 10/2112:45 pm
LTN
-
BOS
1 stop13h 30m
Multiple Airlines
Deal found 4/19$550
This LEVEL deal was found by Cheapflights users on 4/19. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/411:50 pm
BOS
-
LHR
1 stop28h 20m
LEVEL
Sun 10/119:55 am
LHR
-
BOS
1 stop17h 10m
LEVEL
Deal found 4/19$551
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 pm
BOS
-
LTN
1 stop14h 05m
Multiple Airlines
Wed 9/3012:45 pm
LTN
-
BOS
1 stop13h 30m
Multiple Airlines
Deal found 4/21$551
This LEVEL deal was found by Cheapflights users on 4/17. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 pm
BOS
-
LGW
1 stop30h 50m
LEVEL
Wed 9/305:25 pm
LGW
-
BOS
1 stop32h 50m
LEVEL
Deal found 4/17$551
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 9/3011:00 pm
BOS
-
STN
1 stop13h 10m
Multiple Airlines
Wed 10/712:25 pm
STN
-
BOS
1 stop13h 50m
Multiple Airlines
Deal found 4/20$553
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Wed 9/3011:00 pm
BOS
-
LTN
1 stop14h 05m
Multiple Airlines
Wed 10/1412:45 pm
LTN
-
BOS
1 stop13h 30m
Multiple Airlines
Deal found 4/19$554
This LEVEL deal was found by Cheapflights users on 4/21. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:00 pm
BOS
-
LGW
1 stop19h 10m
LEVEL
Thu 10/221:00 pm
LGW
-
BOS
1 stop13h 15m
LEVEL
Deal found 4/21$554
This LEVEL deal was found by Cheapflights users on 4/20. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:00 pm
BOS
-
LHR
1 stop29h 10m
LEVEL
Sun 9/279:55 am
LHR
-
BOS
1 stop17h 10m
LEVEL
Deal found 4/20$555
This Mytrip deal was found by Cheapflights users on 4/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:50 pm
BOS
-
STN
2 stops20h 35m
Multiple Airlines
Fri 5/86:40 am
STN
-
BOS
2 stops20h 05m
Multiple Airlines
Deal found 4/19$557
This Mytrip deal was found by Cheapflights users on 4/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:05 pm
BOS
-
STN
2 stops21h 50m
Multiple Airlines
Fri 6/126:15 pm
STN
-
BOS
3 stops25h 32m
Multiple Airlines
Deal found 4/20$560
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 pm
BOS
-
STN
1 stop13h 10m
Multiple Airlines
Wed 9/3012:25 pm
STN
-
BOS
1 stop13h 50m
Multiple Airlines
Deal found 4/21$561
This LEVEL deal was found by Cheapflights users on 4/19. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 pm
BOS
-
LGW
1 stop32h 15m
LEVEL
Sun 9/2711:40 am
LGW
-
BOS
1 stop15h 25m
LEVEL
Deal found 4/19$562

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 April 22, 2026.

Round-trip from

$551
(LEVEL)

One-way from

$234
(Mytrip)

Popular in

July

Cheapest in

October

Average price

$856
From Maine to London (LON)
Search Deals
One-way flight from Maine to London (LON)
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($255 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($81 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 2,558,603 searches. Data last updated April 22, 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

Price

Cheapest round-trip

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Sun 5/3

11:00 pm-9:40 pm

2 stops17h 40m

London Luton

Mon 5/11

8:15 am-9:45 pm

2 stops18h 30m

$688

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Tue 6/16

4:45 pm-9:05 pm

2 stops23h 20m

London Luton

Tue 6/23

9:15 am-2:45 pm

2 stops34h 30m

$702

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Mon 6/15

4:45 pm-2:35 pm

2 stops16h 50m

London Luton

Sun 6/21

8:35 pm-2:45 pm

2 stops23h 10m

$716

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sun 5/10

2:38 pm-8:50 am

1 stop13h 12m

London Heathrow

Sat 5/16

8:40 am-12:43 am

2 stops21h 03m

$729

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 9/1

2:35 pm-7:15 am

1 stop11h 40m

London Heathrow

Sun 9/6

8:40 am-10:33 pm

2 stops18h 53m

$729

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 5/6

12:46 pm-8:50 am

2 stops15h 04m

London Heathrow

Mon 5/11

8:40 am-11:09 pm

2 stops19h 29m

$734

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 5/4

2:51 pm-8:50 am

1 stop12h 59m

London Heathrow

Mon 5/18

11:45 am-12:43 am

1 stop17h 58m

$736

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 8/18

1:35 pm-1:15 pm

1 stop18h 40m

London Heathrow

Tue 9/1

9:20 am-10:33 pm

1 stop18h 13m

$736

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sun 5/10

12:50 pm-7:10 am

1 stop13h 20m

London Heathrow

Sat 5/16

11:15 am-11:09 pm

1 stop16h 54m

$736

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 5/6

2:51 pm-10:20 am

1 stop14h 29m

London Heathrow

Mon 5/11

8:20 am-12:43 am

1 stop21h 23m

$736

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 resultsSorted by cheapest first
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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.
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

How much does it cost to fly round-trip from Maine to London?

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.

  • How long is the flight from Maine to London?

    Airlines like Delta, KLM, and LEVEL fly from Maine to London in about 12h 59m. The time it takes to get you to your destination can typically vary by up to 15h 31m. Airlines will cover a distance of 3173 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Maine to London?

    Most travelers choose Boston Logan Intl - London Heathrow, Boston Logan Intl - London Gatwick or Boston Logan Intl - London City when deciding on the best route from Maine to London.

  • Can I find deals for flights from Maine to London that include hotel bookings?

    Yes. In addition to deals on Maine to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Maine to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maine to London.

  • Can I find deals for business class flights from Maine to London?

    Yes. Cheapflights offers flight deals from Maine to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton
Stansted

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 2,558,603 searches. Data last updated April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$648Average$798FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$757Average$1,118FlexibilityNo cancel feeOn-time71%

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