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Cheap flights from London Heathrow Airport to Maine from £321

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
19 Dec — 26 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 19 November 2025.

Sat 6/1208:15LHR - BOS
1 stop16h 55mTAP AIR PORTUGAL
Sat 31/118:05BOS - LHR
1 stop13h 35mTAP AIR PORTUGAL
Deal found 17/11£354
Wed 10/1218:30LHR - BOS
1 stop25h 05mTAP AIR PORTUGAL
Thu 8/122:45BOS - LHR
1 stop17h 50mTAP AIR PORTUGAL
Deal found 17/11£358
Sun 14/1208:15LHR - BOS
1 stop16h 55mTAP AIR PORTUGAL
Sun 11/122:45BOS - LHR
1 stop13h 45mTAP AIR PORTUGAL
Deal found 16/11£360
Sun 28/1212:55LHR - BOS
1 stop13h 00mIberia
Wed 21/117:42BOS - LHR
1 stop11h 43mIberia
Deal found 17/11£365
Thu 11/1219:55LHR - BOS
1 stop23h 40mTAP AIR PORTUGAL
Fri 9/122:45BOS - LHR
1 stop13h 45mTAP AIR PORTUGAL
Deal found 18/11£366
Wed 3/1212:15LHR - BOS
1 stop27h 20mIcelandair
Wed 10/1219:50BOS - LHR
1 stop18h 40mIcelandair
Deal found 18/11£367
Thu 27/1112:15LHR - BOS
1 stop10h 35mIcelandair
Wed 3/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 18/11£368
Wed 26/1112:15LHR - BOS
1 stop27h 20mIcelandair
Mon 1/1219:50BOS - LHR
1 stop18h 40mIcelandair
Deal found 18/11£369
Tue 25/1120:35LHR - BOS
1 stop19h 00mIcelandair
Mon 1/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 18/11£370
Tue 2/1220:35LHR - BOS
1 stop26h 15mIcelandair
Tue 9/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 18/11£370
Mon 8/1220:35LHR - BOS
1 stop26h 15mIcelandair
Mon 15/1219:50BOS - LHR
1 stop18h 40mIcelandair
Deal found 18/11£371
Sat 6/1212:15LHR - BOS
1 stop27h 20mIcelandair
Sat 13/1219:50BOS - LHR
1 stop18h 40mIcelandair
Deal found 18/11£373

Cheap flight deals from Heathrow to Maine

Keep the following information in mind while searching for Heathrow to Maine flight deals. Data was last updated 19 November 2025.

Round-trip from

£354

One-way from

£321

Popular in

August

Cheapest in

October

Average price

£577
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 6/12-31/1
  • 2 total stops
  • 30h 30m total
  • London to Maine
Search Deals
British Airways
  • British Airways
  • 19/2
  • 2 total stops
  • 21h 37m total
  • London to Maine
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 19 November 2025.
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

Sat 6/12

12:15-10:35

1 stop27h 20m

Boston Logan Intl

Sat 13/12

19:50-19:30

1 stop18h 40m

£373

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 3/12

09:00-19:12

2 stops15h 12m

Boston Logan Intl

Wed 10/12

15:40-07:10

1 stop10h 30m

£401

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 18/4

13:05-22:10

1 stop14h 05m

Boston Logan Intl

Wed 29/4

23:30-20:20

1 stop15h 50m

£405

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 21/4

13:05-18:50

1 stop10h 45m

Boston Logan Intl

Fri 1/5

23:30-20:20

1 stop15h 50m

£411

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 21/4

13:05-18:50

1 stop10h 45m

Boston Logan Intl

Sat 2/5

20:50-20:20

1 stop18h 30m

£411

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 19/3

07:05-16:50

2 stops13h 45m

Boston Logan Intl

Mon 23/3

18:35-14:35

2 stops16h 00m

£429

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 19/2

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Fri 13/3

20:50-19:30

1 stop18h 40m

£433

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 13/2

07:30-22:52

2 stops20h 22m

Boston Logan Intl

Sat 21/2

17:50-22:10

1 stop23h 20m

£448

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 24/3

20:35-11:35

1 stop19h 00m

Boston Logan Intl

Mon 6/4

20:50-11:55

1 stop10h 05m

£449

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 3/12

13:30-16:00

Nonstop7h 30m

Boston Logan Intl

Wed 10/12

21:35-09:15

Nonstop6h 40m

£454

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 44 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 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Maine (average of £437). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £607). 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.

What is the cheapest time of day to fly from LHR to ME?

Find hourly flight availability from Heathrow to Maine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 November 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 18% on flights from London Heathrow Airport to Maine by exploring options for tickets in the evening.

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 19 November 2025.
See what other customers who have flown with KLM, Finnair, andVirgin Atlantic 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
7.7
Good
1,411 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Finnair
7.6
Good
1,334 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,019 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
JetBlue
7.2
Good
2,902 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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, Air Canada, and United Airlines can get you from London Heathrow Airport to Maine in just under 15h 12m. Your travel time can differ by up to 12h 08m. 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 LEVEL (£331), British Airways (£332), and American Airlines (£426).

  • 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Maine (average of £437). Flying from London Heathrow Airport to Maine in December is currently the most expensive (average of £607). 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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Top 8 airlines flying from Heathrow to Maine

Discover the top 8 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 19 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£392Average£604FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£407Average£538FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£481Average£631FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£482Average£640FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£510Average£633FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£523Average£940FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapest£547Average£869FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£568Average£753FlexibilityNo 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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