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$226+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
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 March 17, 2026.

This Booking.com deal was found by Cheapflights users on 3/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:35 pm
BOS
-
LHR
2 stops34h 20m
Scandinavian Airlines
Mon 11/96:40 am
LHR
-
BOS
1 stop14h 00m
Scandinavian Airlines
Deal found 3/16$500
This Mytrip deal was found by Cheapflights users on 3/13. 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.
Mon 4/135:40 pm
BOS
-
STN
1 stop18h 10m
Multiple Airlines
Mon 4/208:15 am
STN
-
BOS
1 stop12h 20m
Multiple Airlines
Deal found 3/13$501
This Mytrip deal was found by Cheapflights users on 3/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:50 pm
BOS
-
STN
2 stops21h 30m
Multiple Airlines
Thu 5/76:30 am
STN
-
BOS
2 stops20h 15m
Multiple Airlines
Deal found 3/16$504
This Mytrip deal was found by Cheapflights users on 3/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:40 pm
BOS
-
LTN
2 stops18h 35m
Multiple Airlines
Tue 4/216:00 am
LTN
-
BOS
2 stops18h 55m
Multiple Airlines
Deal found 3/16$505
This Mytrip deal was found by Cheapflights users on 3/13. 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.
Mon 4/1311:00 pm
BOS
-
LHR
1 stop16h 20m
Icelandair
Mon 4/209:25 pm
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 3/13$506
This Super.com deal was found by Cheapflights users on 3/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:50 pm
BOS
-
LGW
1 stop12h 50m
Icelandair
Thu 4/303:40 pm
LGW
-
BOS
1 stop11h 05m
Icelandair
Deal found 3/16$506
This Mytrip deal was found by Cheapflights users on 3/14. 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.
Sun 4/2610:40 pm
BOS
-
STN
2 stops16h 40m
Multiple Airlines
Tue 5/56:55 pm
STN
-
BOS
2 stops24h 50m
Multiple Airlines
Deal found 3/14$506
This Mytrip deal was found by Cheapflights users on 3/15. 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 4/138:50 pm
BOS
-
STN
2 stops22h 30m
Multiple Airlines
Sun 4/195:55 am
STN
-
BOS
2 stops17h 55m
Multiple Airlines
Deal found 3/15$507
This Super.com deal was found by Cheapflights users on 3/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:50 pm
BOS
-
LHR
1 stop18h 30m
Icelandair
Sun 4/199:25 pm
LHR
-
BOS
1 stop29h 20m
Icelandair
Deal found 3/15$510
This oojo deal was found by Cheapflights users on 3/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:50 pm
BOS
-
LGW
1 stop12h 50m
Icelandair
Wed 5/273:40 pm
LGW
-
BOS
1 stop11h 05m
Icelandair
Deal found 3/14$510
This oojo deal was found by Cheapflights users on 3/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1011:00 pm
BOS
-
LHR
1 stop16h 20m
Icelandair
Wed 5/279:25 pm
LHR
-
BOS
1 stop29h 20m
Icelandair
Deal found 3/15$512
This oojo deal was found by Cheapflights users on 3/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:50 pm
BOS
-
LGW
1 stop12h 50m
Icelandair
Thu 4/163:40 pm
LGW
-
BOS
1 stop11h 05m
Icelandair
Deal found 3/17$512

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 March 17, 2026.

Round-trip from

$501
(Mytrip)

One-way from

$226
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$859
From Maine to London (LON)
Search Deals
One-way flight from Maine to London (LON)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 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

Price

Cheapest round-trip

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/26

5:40 pm-9:35 am

2 stops34h 55m

London Heathrow

Wed 4/29

6:40 am-3:35 pm

1 stop13h 55m

$562

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Tue 4/7

8:50 pm-3:30 pm

2 stops13h 40m

London Luton

Tue 4/14

9:40 am-6:50 pm

2 stops14h 10m

$634

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Tue 4/14

9:40 pm-9:15 pm

2 stops18h 35m

London Luton

Thu 4/23

8:40 am-7:55 pm

2 stops16h 15m

$640

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Thu 4/2

8:50 pm-11:25 pm

2 stops21h 35m

London Luton

Tue 4/7

9:40 am-6:50 pm

2 stops14h 10m

$661

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 3/24

6:40 pm-8:35 pm

1 stop21h 55m

London Heathrow

Sun 3/29

1:35 pm-5:40 pm

1 stop33h 05m

$662

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 3/23

3:35 pm-7:10 am

1 stop11h 35m

London Heathrow

Tue 4/7

8:45 am-3:10 pm

1 stop11h 25m

$666

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Tue 3/31

11:30 pm-1:25 pm

1 stop8h 55m

London Luton

Fri 4/10

6:20 am-5:04 pm

1 stop15h 44m

$667

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 4/11

6:40 pm-9:00 pm

1 stop21h 20m

London Heathrow

Sat 4/18

2:05 pm-10:15 am

2 stops25h 10m

$670

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Sat 4/4

8:50 pm-11:25 pm

3 stops21h 35m

London Luton

Sat 4/11

6:15 pm-8:20 pm

3 stops31h 05m

$670

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/26

7:00 pm-6:45 am

Nonstop6h 45m

London Heathrow

Thu 4/30

6:30 am-1:13 pm

1 stop11h 43m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

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 Scandinavian Airlines, United Airlines, and KLM fly from Maine to London in about 6h 45m. The time it takes to get you to your destination can typically vary by up to 28h 10m. Airlines will cover a distance of 3254 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
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton
Slough

Browse thousands of different options on Cheapflights for your next trip

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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 2,558,603 searches. Data last updated March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$648Average$818FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$786Average$1,091FlexibilityNo cancel feeOn-time71%

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