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Cheap flights from London Heathrow Airport to Maine from £349

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
10 Jul — 17 Jul1
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 10 June 2026.

Thu 16/710:05
LHR
-
BOS
Nonstop7h 30m
British Airways
Thu 23/707:25
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 8/6£484
Fri 7/811:45
LHR
-
BOS
1 stop11h 45m
Delta
Tue 18/819:10
BOS
-
LHR
Nonstop6h 35m
Delta
Deal found 8/6£485
Tue 4/813:50
LHR
-
BOS
1 stop11h 05m
United Airlines
Wed 26/811:00
BOS
-
LHR
1 stop13h 55m
United Airlines
Deal found 10/6£486
Thu 23/710:05
LHR
-
BOS
Nonstop7h 30m
British Airways
Sun 2/817:25
BOS
-
LHR
1 stop9h 40m
British Airways
Deal found 9/6£487
Wed 15/711:30
LHR
-
BOS
1 stop13h 00m
American Airlines
Tue 4/820:05
BOS
-
LHR
Nonstop6h 55m
American Airlines
Deal found 9/6£487
Mon 20/716:40
LHR
-
BOS
1 stop12h 19m
United Airlines
Mon 27/717:44
BOS
-
LHR
1 stop10h 36m
United Airlines
Deal found 9/6£488
Mon 3/809:00
LHR
-
BOS
1 stop13h 40m
United Airlines
Sun 16/806:00
BOS
-
LHR
1 stop9h 40m
United Airlines
Deal found 10/6£489
Sun 9/806:30
LHR
-
BOS
1 stop15h 07m
Delta
Wed 26/819:10
BOS
-
LHR
Nonstop6h 35m
Delta
Deal found 10/6£490
Fri 19/609:30
LHR
-
BOS
2 stops14h 58m
United Airlines
Fri 21/815:30
BOS
-
LHR
1 stop11h 50m
United Airlines
Deal found 8/6£490
Thu 30/707:30
LHR
-
BOS
2 stops12h 40m
United Airlines
Thu 6/806:05
BOS
-
LHR
1 stop10h 15m
United Airlines
Deal found 9/6£491
Fri 19/609:30
LHR
-
BOS
1 stop10h 11m
United Airlines
Mon 31/815:35
BOS
-
LHR
1 stop13h 25m
United Airlines
Deal found 8/6£492
Mon 21/908:15
LHR
-
PWM
1 stop20h 37m
JetBlue
Mon 28/906:00
PWM
-
LHR
1 stop9h 45m
JetBlue
Deal found 7/6£530

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 10 June 2026.

Round-trip from

£484

One-way from

£349

Popular in

July

Cheapest in

February

Average price

£778
British Airways
  • British Airways
  • 16/7-23/7
  • Nonstop
  • 14h 00m total
  • London to Maine
Search Deals
Aer Lingus
  • Aer Lingus
  • 30/7
  • 1 total stop
  • 11h 50m total
  • London to Maine
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£130 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 June 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 10 June 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

Mon 22/6

14:45-22:49

1 stop13h 04m

Boston Logan Intl

Mon 6/7

20:05-08:00

Nonstop6h 55m

£484

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 6/10

16:05-18:50

Nonstop7h 45m

Boston Logan Intl

Sat 31/10

20:10-06:50

Nonstop6h 40m

£496

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 7/10

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Sat 31/10

20:10-06:50

Nonstop6h 40m

£499

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 26/7

10:05-12:35

Nonstop7h 30m

Boston Logan Intl

Sun 9/8

17:25-08:05

1 stop9h 40m

£507

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 22/7

07:30-16:38

2 stops14h 08m

Boston Logan Intl

Fri 31/7

14:30-05:55

1 stop10h 25m

£514

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 29/7

07:30-15:10

2 stops12h 40m

Boston Logan Intl

Fri 14/8

11:00-05:55

1 stop13h 55m

£518

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 10/7

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Fri 24/7

21:30-09:15

Nonstop6h 45m

£533

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 20/6

07:05-16:55

2 stops14h 50m

Boston Logan Intl

Sun 28/6

21:20-17:15

1 stop14h 55m

£542
Fastest return journey

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 14/7

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Thu 30/7

23:10-10:40

Nonstop6h 30m

£544

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 2/8

20:05-19:55

1 stop28h 50m

Boston Logan Intl

Sun 9/8

21:40-16:35

2 stops13h 55m

£553

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 54 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 £144). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £727). 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 10 June 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
9,804 reviews
Check prices

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,804 reviews
United Airlines
7.4
Good
9,804 reviews
Check prices

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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?

    Finnair, KLM, and Delta can get you from London Heathrow Airport to Maine in just under 7h 25m. Your travel time can differ by up to 5h 39m. 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 (£177), Scandinavian Airlines (£181), and Lufthansa (£209).

  • 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 £144). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £727). 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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Stansted to Boston flights
Heathrow to Ontario flights
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Heathrow to Denver flights
Gatwick to San Francisco flights
Luton to Boston flights
Gatwick to Dulles Intl flights
London City to San Francisco flights
Stansted to San Francisco flights
Luton to Los Angeles flights
London City to Dulles 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 10 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£545Average£733FlexibilityNo 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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