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Maine

$394+ Cheap flights from Heathrow (LHR) to Maine

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Heathrow to Maine

Cheapest flights from Heathrow to Maine
Explore the most affordable flight options available from Heathrow to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This TravelTrolley deal was found by Cheapflights users on 1/26. 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 TravelTrolley is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:30 am
LHR
-
BOS
1 stop14h 10m
Multiple Airlines
Sat 4/186:40 pm
BOS
-
LHR
1 stop21h 20m
Multiple Airlines
Deal found 1/26$477
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/167:30 am
LHR
-
BOS
1 stop11h 05m
United Airlines
Tue 2/246:00 am
BOS
-
LHR
1 stop9h 35m
United Airlines
Deal found 1/27$478
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/167:30 am
LHR
-
BOS
1 stop11h 05m
United Airlines
Mon 2/237:56 pm
BOS
-
LHR
1 stop10h 09m
United Airlines
Deal found 1/27$479
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/157:30 am
LHR
-
BOS
2 stops16h 11m
United Airlines
Sun 2/223:35 pm
BOS
-
LHR
2 stops14h 10m
United Airlines
Deal found 1/26$480
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:50 am
LHR
-
BOS
2 stops13h 02m
Multiple Airlines
Tue 2/2410:45 am
BOS
-
LHR
2 stops15h 25m
Multiple Airlines
Deal found 1/27$481
This Lufthansa deal was found by Cheapflights users on 1/26. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:30 am
LHR
-
BOS
1 stop12h 10m
Lufthansa
Tue 5/57:27 pm
BOS
-
LHR
1 stop10h 13m
Lufthansa
Deal found 1/26$482
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:50 am
LHR
-
BOS
2 stops13h 02m
Air Canada
Tue 2/2410:15 am
BOS
-
LHR
2 stops15h 15m
Air Canada
Deal found 1/27$483
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 am
LHR
-
BOS
2 stops16h 57m
Air Canada
Mon 4/276:40 pm
BOS
-
LHR
1 stop10h 20m
Air Canada
Deal found 1/27$484
This United Airlines deal was found by Cheapflights users on 1/26. 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 4/276:55 am
LHR
-
BOS
1 stop15h 45m
United Airlines
Thu 5/78:05 pm
BOS
-
LHR
1 stop16h 00m
United Airlines
Deal found 1/26$485
This deal was found by Cheapflights users on 1/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/162:30 pm
LHR
-
BOS
Nonstop7h 30m
British Airways
Thu 7/307:35 pm
BOS
-
LHR
Nonstop6h 35m
British Airways
Deal found 1/27$486
This deal was found by Cheapflights users on 1/26. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:30 pm
LHR
-
BOS
Nonstop7h 30m
British Airways
Wed 7/297:25 am
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 1/26$487
This United Airlines deal was found by Cheapflights users on 1/26. 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 4/177:30 am
LHR
-
BOS
2 stops13h 52m
United Airlines
Mon 4/203:28 pm
BOS
-
LHR
1 stop12h 52m
United Airlines
Deal found 1/26$488

Find flight deals from Heathrow to Maine

Keep the following information in mind while searching for Heathrow to Maine flight deals. Data was last updated January 27, 2026.

Round-trip from

$477
(United Airlines)

One-way from

$394
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$765
From London Heathrow to Maine
Search Deals
One-way flight from London Heathrow to Maine
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Maine 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 January 27, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Maine that are best for you.

Fly from

Heathrow

Fly to

Maine

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 3/24

8:35 pm-11:35 am

1 stop19h 00m

Boston Logan Intl

Wed 4/1

8:50 pm-11:55 am

1 stop10h 05m

$487

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 5/15

6:50 am-4:24 pm

2 stops14h 34m

Boston Logan Intl

Sun 5/17

3:32 pm-7:15 am

1 stop10h 43m

$488

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 4/17

1:05 pm-9:45 pm

1 stop13h 40m

Boston Logan Intl

Tue 4/21

8:50 pm-11:55 am

1 stop10h 05m

$497

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 2/22

1:25 pm-9:32 am

1 stop25h 07m

Boston Logan Intl

Sun 3/1

2:20 pm-6:40 am

1 stop11h 20m

$500

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 3/24

7:30 am-6:41 pm

2 stops15h 11m

Boston Logan Intl

Tue 3/31

3:28 pm-7:15 am

1 stop10h 47m

$505

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 4/28

9:50 am-2:55 pm

1 stop10h 05m

Boston Logan Intl

Wed 5/13

9:50 pm-9:35 am

Nonstop6h 45m

$512

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 5/16

6:50 am-7:11 pm

2 stops17h 21m

Boston Logan Intl

Tue 5/19

3:40 pm-10:00 am

1 stop13h 20m

$523

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 2/24

6:20 am-1:40 pm

1 stop12h 20m

Boston Logan Intl

Tue 3/3

7:10 pm-6:50 am

Nonstop6h 40m

$524

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 4/14

5:35 pm-8:05 pm

Nonstop7h 30m

Boston Logan Intl

Thu 5/7

7:35 pm-7:10 am

Nonstop6h 35m

$527

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 2/6

9:15 am-7:50 pm

1 stop15h 35m

Boston Logan Intl

Mon 2/9

7:15 pm-7:00 am

Nonstop6h 45m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 56 results
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Best time to book a flight from Heathrow to Maine

Have a flexible travel schedule? Discover the best time to fly to Maine from Heathrow 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 London Heathrow Airport to Maine

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

Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Maine (average of $571). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of $775). 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.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Maine. 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 London Heathrow Airport to Maine?

    For as low as $488, Icelandair can have you in Maine from London Heathrow Airport in 14h 34m. There are 3254 mi between London Heathrow Airport and Maine. 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 London Heathrow Airport to Maine?

    While some choose either London Heathrow - Bangor or London Heathrow - Portland, London Heathrow - Boston Logan Intl is the most popular route from London Heathrow Airport to Maine.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Maine 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 London Heathrow Airport to Maine?

    Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Maine (average of $571). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of $775). 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

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Alternative routes for Heathrow to Maine

See prices for flight routes from nearby airports that may be better suited for you.
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