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Cheap flights from London Heathrow Airport to Maine from £345

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
24 May — 31 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 24 April 2026.

Mon 18/520:50
LHR
-
BOS
1 stop29h 15m
LEVEL
Tue 26/522:50
BOS
-
LHR
1 stop29h 20m
LEVEL
Deal found 20/4£410
Sat 5/917:35
LHR
-
BOS
Nonstop7h 30m
British Airways
Mon 7/907:25
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 20/4£415
Sun 3/511:45
LHR
-
BOS
1 stop12h 53m
Delta
Fri 22/519:00
BOS
-
LHR
Nonstop6h 45m
Delta
Deal found 21/4£416
Tue 27/1009:55
LHR
-
BOS
1 stop16h 00m
LEVEL
Tue 3/1122:40
BOS
-
LHR
1 stop29h 30m
LEVEL
Deal found 19/4£419
Thu 14/520:10
LHR
-
BOS
Nonstop7h 25m
British Airways
Mon 25/519:30
BOS
-
LHR
Nonstop6h 40m
British Airways
Deal found 22/4£425
Sun 18/1020:10
LHR
-
BOS
Nonstop7h 25m
British Airways
Thu 22/1007:25
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 20/4£425
Fri 15/516:20
LHR
-
BOS
1 stop12h 17m
Delta
Fri 22/519:00
BOS
-
LHR
Nonstop6h 45m
Delta
Deal found 22/4£426
Wed 19/810:50
LHR
-
BOS
1 stop14h 00m
Iberia
Thu 27/817:40
BOS
-
LHR
1 stop11h 55m
Iberia
Deal found 21/4£428
Wed 29/412:30
LHR
-
BOS
1 stop13h 30m
American Airlines
Sat 23/506:30
BOS
-
LHR
1 stop10h 10m
American Airlines
Deal found 21/4£428
Tue 28/411:00
LHR
-
BOS
Nonstop7h 30m
American Airlines
Sat 23/517:04
BOS
-
LHR
1 stop12h 16m
American Airlines
Deal found 21/4£430
Sun 26/717:40
LHR
-
BOS
Nonstop7h 30m
British Airways
Wed 12/821:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 22/4£431
Thu 28/511:55
LHR
-
PWM
1 stop30h 40m
JetBlue
Thu 4/606:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 23/4£614

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 24 April 2026.

Round-trip from

£410

One-way from

£345

Popular in

August

Cheapest in

October

Average price

£603
LEVEL
  • LEVEL
  • 18/5-26/5
  • 2 total stops
  • 58h 35m total
  • London to Maine
Search Deals
United Airlines
  • United Airlines
  • 1/9
  • 2 total stops
  • 14h 53m total
  • London to Maine
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 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 24 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

Thu 17/9

08:40-16:35

1 stop12h 55m

Boston Logan Intl

Tue 22/9

23:10-10:40

Nonstop6h 30m

£517

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 25/9

21:05-15:35

2 stops23h 30m

Boston Logan Intl

Mon 28/9

17:40-16:25

2 stops17h 45m

£531

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 21/10

09:55-16:36

1 stop11h 41m

Boston Logan Intl

Wed 28/10

20:10-06:50

Nonstop6h 40m

£539

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 21/7

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Wed 5/8

23:10-10:40

Nonstop6h 30m

£542
Fastest return journey

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 22/7

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Wed 2/9

23:10-10:40

Nonstop6h 30m

£542

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 10/8

06:15-13:39

1 stop12h 24m

Boston Logan Intl

Fri 4/9

20:45-12:05

1 stop10h 20m

£546

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 30/9

17:35-20:05

Nonstop7h 30m

Boston Logan Intl

Mon 5/10

19:35-07:10

Nonstop6h 35m

£553

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 17/9

09:40-12:17

Nonstop7h 37m

Boston Logan Intl

Tue 22/9

21:30-09:15

Nonstop6h 45m

£553

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 6/8

16:05-18:50

Nonstop7h 45m

Boston Logan Intl

Tue 11/8

19:10-06:45

Nonstop6h 35m

£556

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 24/7

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Tue 4/8

21:30-09:15

Nonstop6h 45m

£556

Flights are sorted by cheapest return flights first.

Deals found on 19/4

Showing 1-10 of 50 resultsSorted by cheapest first
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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 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 £143). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £720). 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 24 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
9,643 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,643 reviews
United Airlines
7.4
Good
9,643 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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?

    Delta, Scandinavian Airlines, and KLM can get you from London Heathrow Airport to Maine in just under 11h 41m. Your travel time can differ by up to 11h 49m. 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 cheapest airlines to fly from London Heathrow Airport to Maine one-way?

    The cheapet airlines for a one-way flight from London Heathrow Airport to Maine are Aegean Airlines (£175), Scandinavian Airlines (£206), and Lufthansa (£207).

  • 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 - Portland or London Heathrow - Bangor 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 £143). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £720). 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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Gatwick to Dulles Intl flights
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Heathrow to Austin flights
Stansted to Dulles Intl flights
Gatwick to San Francisco flights
Stansted to O'Hare Intl flights
Heathrow to Midway flights
London City to O'Hare Intl 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 24 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£540Average£721FlexibilityNo 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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