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$224+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
Apr 5 — Apr 121
Sun 4/5
Sun 4/12
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 6, 2026.

This CrystalTravel deal was found by Cheapflights users on 3/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:50 pm
BOS
-
LHR
1 stop10h 05m
Icelandair
Tue 6/91:05 pm
LHR
-
BOS
1 stop10h 45m
Icelandair
Deal found 3/1$489
This FlightHub deal was found by Cheapflights users on 3/1. 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.
Tue 5/128:50 pm
BOS
-
LGW
1 stop12h 50m
Icelandair
Tue 5/193:40 pm
LGW
-
BOS
1 stop32h 10m
Icelandair
Deal found 3/1$489
This FlightHub deal was found by Cheapflights users on 3/1. 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.
Tue 5/128:50 pm
BOS
-
LHR
1 stop10h 05m
Icelandair
Thu 5/219:25 pm
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 3/1$490
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 4/2110:50 pm
BOS
-
STN
1 stop14h 05m
Multiple Airlines
Wed 4/2912:25 pm
STN
-
BOS
1 stop13h 40m
Multiple Airlines
Deal found 3/1$490
This KLM deal was found by Cheapflights users on 3/1. 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 3/3111:10 pm
BOS
-
LHR
Nonstop6h 30m
KLM
Thu 4/26:30 am
LHR
-
BOS
1 stop11h 43m
KLM
Deal found 3/1$491
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/2011:00 pm
BOS
-
LGW
2 stops28h 05m
Multiple Airlines
Thu 4/301:00 pm
LGW
-
BOS
1 stop13h 05m
Multiple Airlines
Deal found 3/3$491
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 4/2210:50 pm
BOS
-
STN
1 stop13h 20m
Multiple Airlines
Wed 4/2912:25 pm
STN
-
BOS
1 stop13h 40m
Multiple Airlines
Deal found 3/1$491
This FlightHub deal was found by Cheapflights users on 3/3. 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.
Sun 8/235:40 pm
BOS
-
LHR
2 stops38h 15m
Scandinavian Airlines
Wed 8/267:05 am
LHR
-
BOS
2 stops13h 30m
Scandinavian Airlines
Deal found 3/3$492
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/128:50 pm
BOS
-
LGW
2 stops18h 20m
Multiple Airlines
Thu 4/161:00 pm
LGW
-
BOS
1 stop13h 05m
Multiple Airlines
Deal found 3/3$492
This Mytrip deal was found by Cheapflights users on 3/4. 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 3/3010:45 pm
BOS
-
STN
2 stops19h 10m
Multiple Airlines
Mon 4/136:00 pm
STN
-
BOS
2 stops25h 45m
Multiple Airlines
Deal found 3/4$492
This Icelandair deal was found by Cheapflights users on 3/3. 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 3/2612:35 pm
BOS
-
LGW
1 stop18h 20m
Icelandair
Tue 4/143:40 pm
LGW
-
BOS
1 stop32h 10m
Icelandair
Deal found 3/3$493
This Mytrip deal was found by Cheapflights users on 3/3. 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 5/28:50 pm
BOS
-
STN
2 stops21h 30m
Multiple Airlines
Sun 5/106:35 am
STN
-
BOS
2 stops17h 15m
Multiple Airlines
Deal found 3/3$493

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 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$489
(CrystalTravel)

One-way from

$224
(Priceline)

Popular in

June

Cheapest in

October

Average price

$581
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. 14% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 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 6, 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

Sat 4/11

5:10 pm-8:20 am

1 stop34h 10m

London Heathrow

Tue 4/14

6:55 am-5:40 pm

1 stop15h 45m

$571
Quickest round-trip

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 5/11

8:10 pm-8:00 am

Nonstop6h 50m

London Heathrow

Wed 5/20

11:00 am-1:30 pm

Nonstop7h 30m

$579

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 3/26

3:49 pm-6:20 am

1 stop10h 31m

London Heathrow

Tue 4/14

8:10 pm-10:35 pm

Nonstop7h 25m

$583

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 4/17

6:40 pm-9:00 pm

1 stop21h 20m

London Heathrow

Sun 4/26

2:05 pm-9:49 am

1 stop24h 44m

$584

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Sun 3/29

5:40 pm-2:35 pm

2 stops15h 55m

London Luton

Sat 4/4

3:15 pm-3:35 pm

2 stops29h 20m

$588

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 5/11

8:10 pm-8:00 am

Nonstop6h 50m

London Heathrow

Tue 5/19

6:05 pm-11:52 pm

1 stop10h 47m

$589

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 4/21

6:40 pm-10:00 am

1 stop10h 20m

London Heathrow

Tue 4/28

12:40 pm-10:39 pm

2 stops14h 59m

$593

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Mon 3/30

5:40 pm-2:35 pm

2 stops15h 55m

London Luton

Sat 4/4

3:15 pm-3:35 pm

2 stops29h 20m

$595

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 8/29

6:50 pm-10:00 am

1 stop10h 10m

London Heathrow

Sat 9/5

6:50 am-4:43 pm

2 stops14h 53m

$610

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 4/10

6:00 am-9:25 pm

1 stop10h 25m

London Heathrow

Wed 4/29

8:40 am-3:10 pm

1 stop11h 30m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

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

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 $598). 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.

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 United Airlines, Finnair, and British Airways fly from Maine to London in about 6h 50m. The time it takes to get you to your destination can typically vary by up to 27h 20m. 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 $598). 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
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

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 March 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$648Average$799FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$786Average$1,091FlexibilityNo cancel feeOn-time71%

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