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$194+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This Mytrip deal was found by Cheapflights users on 12/12. 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.
Tue 12/306:15 amBOS - LHR
2 stops19h 55mMultiple Airlines
Tue 1/208:05 pmLHR - BOS
1 stop29h 15mMultiple Airlines
Deal found 12/12$504
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 12/142:15 pmBOS - LHR
1 stop11h 25mMultiple Airlines
Thu 12/251:45 pmLHR - BOS
1 stop11h 15mMultiple Airlines
Deal found 12/14$506
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Mon 12/296:40 pmBOS - LHR
1 stop20h 55mUnited Airlines
Wed 1/1412:05 pmLHR - BOS
1 stop12h 55mUnited Airlines
Deal found 12/14$507
This Kiwi.com deal was found by Cheapflights users on 12/13. 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.
Sun 12/147:07 pmBOS - LHR
1 stop10h 43mMultiple Airlines
Wed 12/176:00 amLHR - BOS
1 stop19h 20mMultiple Airlines
Deal found 12/13$508
This KLM deal was found by Cheapflights users on 12/13. 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.
Wed 12/3111:55 pmBOS - LHR
Nonstop6h 30mKLM
Thu 1/156:30 amLHR - BOS
1 stop12h 00mKLM
Deal found 12/13$509
This Mytrip deal was found by Cheapflights users on 12/14. 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 12/146:40 pmBOS - LHR
1 stop20h 55mAir Canada
Tue 1/209:00 amLHR - BOS
2 stops15h 42mAir Canada
Deal found 12/14$510
This Iberia deal was found by Cheapflights users on 12/15. 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.
Wed 12/317:15 pmBOS - LHR
Nonstop6h 45mIberia
Sun 5/1012:20 pmLHR - BOS
1 stop12h 30mIberia
Deal found 12/15$511
This Gotogate deal was found by Cheapflights users on 12/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:00 pmBOS - LHR
2 stops13h 10mMultiple Airlines
Sat 1/101:00 pmLHR - BOS
1 stop14h 37mMultiple Airlines
Deal found 12/13$512
This KLM deal was found by Cheapflights users on 12/15. 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.
Wed 12/317:10 pmBOS - LHR
Nonstop6h 40mKLM
Fri 1/99:40 amLHR - BOS
Nonstop7h 50mKLM
Deal found 12/15$514
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Wed 12/315:20 amBOS - LHR
1 stop24h 30mUnited Airlines
Mon 1/121:25 pmLHR - BOS
1 stop25h 07mUnited Airlines
Deal found 12/14$515
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
Tue 12/301:40 pmBOS - LHR
1 stop26h 40mAustrian Airlines
Thu 1/812:05 pmLHR - BOS
1 stop11h 52mAustrian Airlines
Deal found 12/14$516
This KAYAK deal was found by Cheapflights users on 12/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:10 pmBOS - LGW
1 stop14h 40mSWISS
Wed 12/246:40 pmLGW - BOS
1 stop30h 20mSWISS
Deal found 12/14$554

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 December 15, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$503
(Cheapflightsfares)

One-way from

$194
(Netflights)

Popular in

June

Cheapest in

October

Average price

$734
Provider with most accurate pricing for Boston Logan Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-London (LON) flights.
Search Deals
From Maine to London (LON)
Search Deals
One-way flight from Maine to London (LON)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 15, 2025.
Use the filters below to find and compare flights from Maine to London that are best for you.

Fly from

Maine

Fly to

London

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 2/24

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Wed 3/4

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 2/11

7:10 pm-6:55 am

Nonstop6h 45m

London Heathrow

Fri 2/13

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 2/20

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Sat 2/28

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 2/1

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Sun 2/8

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 3/3

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Mon 3/9

9:20 am-1:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 1/12

3:40 pm-2:05 pm

2 stops17h 25m

London Stansted

Tue 1/20

8:10 am-10:37 pm

3 stops19h 27m

$512

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 12/31

11:55 pm-11:25 am

Nonstop6h 30m

London Heathrow

Sat 1/10

1:05 pm-4:00 pm

Nonstop7h 55m

$514

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 3/15

8:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

Wed 3/18

6:20 am-2:30 pm

1 stop12h 10m

$516

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 2/2

7:15 pm-6:50 am

Nonstop6h 35m

London Heathrow

Fri 2/6

6:20 am-1:40 pm

1 stop12h 20m

$516

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 2/21

7:15 pm-6:50 am

Nonstop6h 35m

London Heathrow

Sat 2/28

6:20 am-1:40 pm

1 stop12h 20m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 60 results
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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

What is the cheapest month to book a flight from Maine to London?

Currently, April is the cheapest month in which you can book a flight from Maine to London (average of $589). Flying from Maine to London in December is currently the most expensive (average of $1,472). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ME to LON?

Find hourly flight availability from Maine to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

It’s optimal to fly from Maine to London in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at noon.

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 JetBlue, Virgin Atlantic, and Delta fly from Maine to London in about 6h 43m. The time it takes to get you to your destination can typically vary by up to 10h 27m. 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.

  • What is the cheapest month to book a flight from Maine to London?

    Currently, April is the cheapest month in which you can book a flight from Maine to London (average of $589). Flying from Maine to London in December is currently the most expensive (average of $1,472). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London?

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

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Alternative routes for Maine to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Maine to London

Discover the top 3 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$648Average$874FlexibilityNo cancel feeOn-time69%
DeltaCheapest$765Average$963FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$786Average$895FlexibilityNo cancel feeOn-time71%

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