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Cheap flights from Maine to London Heathrow Airport from £258

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
10 Jul — 17 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Maine to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Maine to Heathrow
Explore the most affordable flight options available from Maine to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 June 2026.

Mon 9/1106:30
BGR
-
LHR
1 stop9h 50m
United Airlines
Tue 10/1111:05
LHR
-
BGR
2 stops37h 48m
United Airlines
Deal found 7/6£567
Tue 13/1017:40
BOS
-
LHR
1 stop23h 00m
Scandinavian Airlines
Tue 20/1007:05
LHR
-
BOS
2 stops13h 30m
Scandinavian Airlines
Deal found 5/6£572
Wed 29/720:50
BOS
-
LHR
1 stop10h 05m
Multiple Airlines
Thu 6/817:25
LHR
-
BOS
1 stop11h 30m
Multiple Airlines
Deal found 5/6£573
Wed 16/1219:50
BOS
-
LHR
1 stop18h 40m
Icelandair
Mon 28/1220:35
LHR
-
BOS
1 stop26h 15m
Icelandair
Deal found 8/6£573
Sun 11/1018:30
BOS
-
LHR
1 stop9h 35m
Aer Lingus
Thu 15/1009:50
LHR
-
BOS
1 stop10h 50m
Aer Lingus
Deal found 8/6£574
Fri 11/907:25
BOS
-
LHR
Nonstop6h 30m
Multiple Airlines
Sun 20/921:25
LHR
-
BOS
1 stop26h 25m
Multiple Airlines
Deal found 8/6£575
Mon 24/817:40
BOS
-
LHR
2 stops17h 45m
Scandinavian Airlines
Fri 4/906:40
LHR
-
BOS
1 stop13h 55m
Scandinavian Airlines
Deal found 6/6£576
Thu 24/917:40
BOS
-
LHR
2 stops15h 55m
Scandinavian Airlines
Mon 28/906:40
LHR
-
BOS
2 stops13h 55m
Scandinavian Airlines
Deal found 8/6£576
Fri 11/917:40
BOS
-
LHR
1 stop10h 40m
Scandinavian Airlines
Tue 29/907:05
LHR
-
BOS
2 stops13h 30m
Scandinavian Airlines
Deal found 9/6£577
Thu 8/1019:35
BOS
-
LHR
Nonstop6h 35m
British Airways
Sun 11/1009:15
LHR
-
BOS
1 stop11h 55m
British Airways
Deal found 8/6£578
Wed 9/917:40
BOS
-
LHR
2 stops15h 55m
Scandinavian Airlines
Tue 15/907:05
LHR
-
BOS
2 stops13h 30m
Scandinavian Airlines
Deal found 8/6£579
Fri 25/917:40
BOS
-
LHR
2 stops19h 50m
Scandinavian Airlines
Mon 28/919:50
LHR
-
BOS
2 stops24h 45m
Scandinavian Airlines
Deal found 8/6£579

Find flight deals from Maine to Heathrow

Keep the following information in mind while searching for Maine to Heathrow flight deals. Data was last updated 10 June 2026.

Round-trip from

£567

One-way from

£258

Popular in

July

Cheapest in

February

Average price

£830
United Airlines
  • United Airlines
  • 9/11-10/11
  • 3 total stops
  • 47h 38m total
  • Maine to London
Search Deals
1/10
  • 1/10
  • 3 total stops
  • 31h 30m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£147 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£37 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 Maine to Heathrow 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 Maine to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangorLondon

BGR - LHR

BGRLHR

Bangor

Mon 9/11

06:30-21:20

1 stop9h 50m

London Heathrow

Tue 10/11

11:05-19:53

2 stops37h 48m

£567

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 12/9

07:25-18:55

Nonstop6h 30m

London Heathrow

Fri 18/9

14:30-17:05

Nonstop7h 35m

£597

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 7/9

21:30-09:15

Nonstop6h 45m

London Heathrow

Sat 12/9

16:05-18:50

Nonstop7h 45m

£597

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 17/8

20:05-08:00

Nonstop6h 55m

London Heathrow

Sun 30/8

10:05-12:40

Nonstop7h 35m

£598

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 13/9

21:55-09:40

Nonstop6h 45m

London Heathrow

Tue 15/9

17:35-20:05

Nonstop7h 30m

£598

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 30/8

17:40-14:35

2 stops15h 55m

London Heathrow

Wed 2/9

07:05-15:35

2 stops13h 30m

£601

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 14/7

17:40-16:25

2 stops17h 45m

London Heathrow

Mon 20/7

06:40-15:35

1 stop13h 55m

£619

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 12/7

17:40-16:25

2 stops17h 45m

London Heathrow

Wed 15/7

07:05-15:35

2 stops13h 30m

£622

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/10

17:20-11:20

1 stop13h 00m

London Heathrow

Sun 18/10

08:55-19:55

2 stops16h 00m

£626

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 18/7

20:50-20:20

1 stop18h 30m

London Heathrow

Sat 25/7

13:05-18:50

1 stop10h 45m

£629

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 46 resultsSorted by cheapest first
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Best time to book a flight from Maine to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Maine 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 Maine to London Heathrow Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Maine to Heathrow. 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 Maine to London Heathrow Airport?

    Airlines like United Airlines, Scandinavian Airlines, and Virgin Atlantic fly from Maine to London Heathrow Airport in about 9h 50m. The time it takes to get you to your destination can typically vary by up to 13h 10m. Maine and London Heathrow Airport are separated by a distance of 3067 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 Maine to London Heathrow Airport?

    The most popular flight routes from Maine to London Heathrow Airport are Boston Logan Intl - London Heathrow, Portland - London Heathrow and Bangor - London Heathrow.

  • Can I find deals for flights from Maine to Heathrow that include hotel bookings?

    Yes. In addition to deals on Maine to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Maine to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maine to Heathrow.

  • Can I find deals for business class flights from Maine to Heathrow?

    Yes. Cheapflights offers flight deals from Maine to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Poole
Guildford
Romford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Maine to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Heathrow flights
John F Kennedy Intl to Heathrow flights
John F Kennedy Intl to Gatwick flights
Newark to Gatwick flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
Boston to Heathrow flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
LaGuardia to Gatwick flights
Baltimore to Heathrow flights
O'Hare Intl to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Boston to Gatwick flights
San Francisco to Heathrow flights
Seattle to Heathrow flights
Newark to London City flights
Newark to Stansted flights
Newark to Luton flights
Orlando to Heathrow flights
Atlanta to Heathrow flights
Hobby to Heathrow flights
Boston to London City flights
Miami to Heathrow flights
LaGuardia to Stansted flights
Dulles Intl to Gatwick flights
Los Angeles to Gatwick flights
Reagan-National to Heathrow flights
Denver to Heathrow flights
Philadelphia to Heathrow flights
Boston to Stansted flights
George Bush Intcntl to Heathrow flights
Los Angeles to Stansted flights
Los Angeles to London City flights
Dulles Intl to London City flights
Baltimore to Gatwick flights
O'Hare Intl to Gatwick flights
O'Hare Intl to Stansted flights
Charlotte to Heathrow flights
O'Hare Intl to London City flights
Sky Harbor Intl to Heathrow flights
San Francisco to Gatwick flights
San Francisco to London City flights
Orlando to Gatwick flights
Reagan-National to Gatwick flights
Dallas/Fort Worth to Gatwick flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Maine today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Maine to Heathrow for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Heathrow from Maine shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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