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Cheap flights from London Heathrow Airport to Maine from £344

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
5 May — 12 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Maine

Enter your travel dates to find the best prices.

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 5 April 2026.

Mon 17/810:05
LHR
-
BOS
Nonstop7h 40m
American Airlines
Thu 27/813:10
BOS
-
LHR
1 stop13h 10m
American Airlines
Deal found 5/4£407
Sun 19/413:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Sun 26/420:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 3/4£409
Mon 17/812:30
LHR
-
BOS
1 stop11h 37m
American Airlines
Wed 26/813:10
BOS
-
LHR
1 stop13h 10m
American Airlines
Deal found 5/4£410
Fri 22/514:30
LHR
-
BOS
Nonstop7h 25m
British Airways
Wed 27/507:25
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 2/4£416
Fri 14/820:10
LHR
-
BOS
Nonstop7h 25m
British Airways
Tue 25/821:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 5/4£417
Sat 15/814:30
LHR
-
BOS
Nonstop7h 30m
British Airways
Mon 24/807:25
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 5/4£418
Tue 18/809:15
LHR
-
BOS
1 stop11h 55m
Iberia
Thu 27/817:40
BOS
-
LHR
1 stop11h 55m
Iberia
Deal found 5/4£424
Wed 2/913:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Wed 9/920:50
BOS
-
LHR
1 stop18h 30m
Icelandair
Deal found 4/4£426
Sun 16/810:05
LHR
-
BOS
Nonstop7h 40m
American Airlines
Thu 27/813:10
BOS
-
LHR
1 stop13h 10m
American Airlines
Deal found 5/4£429
Tue 14/421:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Tue 12/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 1/4£430
Sun 19/408:40
LHR
-
BOS
Nonstop7h 34m
JetBlue
Thu 23/405:20
BOS
-
LHR
1 stop10h 25m
JetBlue
Deal found 3/4£431
Fri 14/809:15
LHR
-
BOS
1 stop12h 59m
American Airlines
Tue 25/812:45
BOS
-
LHR
1 stop14h 05m
American Airlines
Deal found 5/4£432

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 5 April 2026.

Round-trip from

£409

One-way from

£344

Popular in

August

Cheapest in

October

Average price

£616
Icelandair
  • Icelandair
  • 19/4-26/4
  • 2 total stops
  • 20h 50m total
  • London to Maine
Search Deals
JetBlue
  • JetBlue
  • 7/5
  • 1 total stop
  • 16h 08m total
  • London to Maine
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£77 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 5 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 15/4

06:00-14:45

1 stop13h 45m

Boston Logan Intl

Sun 26/4

22:30-22:00

2 stops18h 30m

£519

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 3/5

06:30-16:25

1 stop14h 55m

Boston Logan Intl

Tue 12/5

19:00-06:45

Nonstop6h 45m

£525

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 15/5

08:15-23:03

1 stop19h 48m

Portland

Fri 22/5

06:00-09:30

1 stop22h 30m

£529

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 2/9

07:05-15:35

2 stops13h 30m

Boston Logan Intl

Wed 23/9

17:40-16:25

2 stops17h 45m

£530

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 2/10

06:30-13:15

1 stop11h 45m

Boston Logan Intl

Fri 9/10

19:05-06:45

Nonstop6h 40m

£535

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 1/5

09:55-18:30

1 stop13h 35m

Boston Logan Intl

Fri 8/5

13:29-08:50

1 stop14h 21m

£537
Fastest return journey

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 6/8

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Fri 14/8

23:10-10:40

Nonstop6h 30m

£539

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 20/5

16:50-19:35

Nonstop7h 45m

Boston Logan Intl

Tue 2/6

21:30-09:15

Nonstop6h 45m

£539

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 3/7

19:50-07:24

1 stop16h 34m

Boston Logan Intl

Fri 17/7

23:10-10:40

Nonstop6h 30m

£540

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 28/9

06:30-13:19

1 stop11h 49m

Boston Logan Intl

Sun 4/10

19:05-06:45

Nonstop6h 40m

£541

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Showing 1-10 of 56 resultsSorted by cheapest first
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6

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 return 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, July is the cheapest month in which you can book a flight from London Heathrow Airport to Maine (average of £272). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £796). 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 for a return flight from London Heathrow Airport to Maine?

Reviews of airlines servicing Maine

Get insights into the airlines that provide service to Maine. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maine. Reviews last updated 5 April 2026.
See what other customers who have flown with United Airlines from London Heathrow Airport to Maine have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,546 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,546 reviews
United Airlines
7.4
Good
9,546 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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?

    TAP AIR PORTUGAL, Delta, and JetBlue can get you from London Heathrow Airport to Maine in just under 13h 45m. Your travel time can differ by up to 6h 03m. The distance between London Heathrow Airport and Maine is about 3254 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    When deciding which route to take from London Heathrow Airport to Maine consider London Heathrow - Boston Logan Intl, London Heathrow - Bangor or London Heathrow - Portland as they are the most popular.

  • 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 holiday 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, July is the cheapest month in which you can book a flight from London Heathrow Airport to Maine (average of £272). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £796). 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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Luton to Miami flights
Stansted to San Francisco flights
Heathrow to Denver flights
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London City to San Francisco flights
Gatwick to Las Vegas flights

Top airline flying from Heathrow to Maine

Discover the top airline that operate flights from Heathrow to Maine. 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 858,174 searches. Data last updated 5 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£552Average£731FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Maine?

Cheapflights makes it easy to find Heathrow to Maine flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Maine?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Maine by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Maine with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Maine, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Maine become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Maine on Cheapflights with our Price Alert feature and get notified when better prices are available.

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