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Cheap flights from London Heathrow Airport to Maine from £320

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
16 Apr — 23 Apr1
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 17 March 2026.

Mon 20/417:35
LHR
-
BOS
Nonstop7h 30m
British Airways
Tue 5/521:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 14/3£374
Tue 21/414:25
LHR
-
BOS
Nonstop7h 25m
British Airways
Tue 5/521:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 14/3£375
Thu 3/913:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Sun 6/920:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 14/3£377
Wed 22/409:30
LHR
-
BOS
1 stop11h 52m
United Airlines
Wed 6/506:00
BOS
-
LHR
1 stop9h 40m
United Airlines
Deal found 14/3£382
Wed 22/406:00
LHR
-
BOS
1 stop13h 45m
TAP AIR PORTUGAL
Sat 2/522:45
BOS
-
LHR
1 stop11h 50m
TAP AIR PORTUGAL
Deal found 14/3£383
Wed 22/414:30
LHR
-
BOS
Nonstop7h 25m
British Airways
Thu 7/521:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 14/3£383
Mon 20/416:30
LHR
-
BOS
1 stop26h 10m
ITA Airways
Mon 27/417:05
BOS
-
LHR
1 stop11h 35m
ITA Airways
Deal found 17/3£387
Sat 18/413:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Sun 3/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 14/3£393
Sun 19/417:40
LHR
-
BOS
Nonstop7h 30m
British Airways
Mon 4/521:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 14/3£396
Tue 21/414:25
LHR
-
BOS
Nonstop7h 25m
British Airways
Sat 2/521:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 14/3£397
Mon 13/421:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Mon 18/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 15/3£401
Wed 18/312:15
LHR
-
BOS
1 stop10h 35m
Icelandair
Wed 25/320:50
BOS
-
LHR
1 stop10h 00m
Icelandair
Deal found 13/3£402

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 17 March 2026.

Round-trip from

£374

One-way from

£320

Popular in

August

Cheapest in

October

Average price

£688
British Airways
  • British Airways
  • 20/4-5/5
  • Nonstop
  • 14h 15m total
  • London to Maine
Search Deals
Icelandair
  • Icelandair
  • 1/5
  • 1 total stop
  • 26h 25m total
  • London to Maine
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 17 March 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 7/5

13:05-18:50

1 stop10h 45m

Boston Logan Intl

Mon 11/5

20:50-11:55

1 stop10h 05m

£474

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 28/4

09:05-13:50

1 stop33h 45m

Boston Logan Intl

Tue 5/5

17:28-10:25

1 stop11h 57m

£476

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 29/4

21:25-18:50

1 stop26h 25m

Boston Logan Intl

Sat 9/5

20:50-11:55

1 stop10h 05m

£491

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 6/5

17:35-20:05

Nonstop7h 30m

Boston Logan Intl

Wed 13/5

15:17-06:25

1 stop10h 08m

£501

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 13/4

18:05-23:52

1 stop10h 47m

Boston Logan Intl

Mon 20/4

20:10-08:00

Nonstop6h 50m

£503

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 12/4

19:30-13:50

1 stop23h 20m

Boston Logan Intl

Mon 20/4

14:37-06:55

1 stop11h 18m

£512

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 16/7

08:55-19:35

1 stop15h 40m

Boston Logan Intl

Thu 23/7

12:55-07:10

1 stop13h 15m

£540

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 30/3

09:55-18:30

1 stop13h 35m

Boston Logan Intl

Sat 11/4

05:30-07:10

1 stop20h 40m

£541
Fastest return journey

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/6

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Tue 9/6

19:05-06:45

Nonstop6h 40m

£541

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 12/4

19:15-15:10

2 stops24h 55m

Boston Logan Intl

Mon 20/4

21:40-17:50

1 stop15h 10m

£542

Flights are sorted by cheapest return flights first.

Deals found on 12/3

Showing 1-10 of 46 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 £395). Flying from London Heathrow Airport to Maine in January is currently the most expensive (average of £602). 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.

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 17 March 2026.
See what other customers who have flown with KLM,Virgin Atlantic, andUnited 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.
KLM
7.8
Good
1,473 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,473 reviews
KLM
7.8
Good
1,473 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
682 reviews
KLM
7.8
Good
1,473 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,433 reviews
KLM
7.8
Good
1,473 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Icelandair
7.1
Good
622 reviews
KLM
7.8
Good
1,473 reviews
Check prices

Food

7.3

Crew

8.4

Boarding

7.8

Overall

7.8

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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?

    Icelandair, United Airlines, and British Airways can get you from London Heathrow Airport to Maine in just under 7h 30m. Your travel time can differ by up to 26h 15m. 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 - 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 £395). Flying from London Heathrow Airport to Maine in January is currently the most expensive (average of £602). 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

Browse thousands of different options on Cheapflights for your next trip

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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
Heathrow to Austin flights

Top 4 airlines flying from Heathrow to Maine

Discover the top 4 airlines 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 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£475Average£556FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£493Average£648FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapest£503Average£624FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£556Average£730FlexibilityNo 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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