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Cheap flights from Maine to London Heathrow Airport from £191

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
10 Sep — 17 Sep1
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 11 August 2026.

Wed 23/922:55 -
1 stop16h 10m
Sat 10/1020:50 -
1 stop29h 55m
Deal found 10/8£462
Sun 20/923:35 -
1 stop28h 35m
Tue 29/920:50 -
1 stop29h 15m
Deal found 10/8£463
Tue 6/1020:50 -
1 stop10h 05m
Tue 20/1013:05 -
1 stop10h 45m
Deal found 10/8£465
Wed 14/1022:55 -
1 stop16h 10m
Tue 20/1020:50 -
1 stop29h 15m
Deal found 8/8£466
Mon 21/917:40 -
2 stops14h 15m
Mon 28/906:40 -
1 stop13h 55m
Deal found 7/8£467
Wed 30/917:40 -
2 stops34h 15m
Sat 3/1006:40 -
1 stop13h 55m
Deal found 6/8£468
Fri 20/1117:35 -
2 stops17h 50m
Sun 22/1106:40 -
2 stops21h 15m
Deal found 8/8£469
Mon 5/1023:00 -
2 stops15h 55m
Sun 11/1006:40 -
2 stops17h 10m
Deal found 6/8£470
Sun 20/917:40 -
3 stops21h 15m
Wed 23/913:55 -
3 stops30h 40m
Deal found 8/8£470
Fri 9/1017:40 -
2 stops45h 15m
Mon 12/1017:30 -
2 stops51h 05m
Deal found 7/8£471
Mon 9/1108:45 -
1 stop18h 40m
Wed 11/1106:50 -
2 stops21h 31m
Deal found 6/8£547
Sun 6/1206:30 -
2 stops33h 30m
Tue 8/1211:05 -
2 stops39h 59m
Deal found 6/8£547

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 11 August 2026.

Round-trip from

£462

One-way from

£191

Popular in

July

Cheapest in

December

Average price

£552
LEVEL
  • LEVEL
  • 30/9-7/10
  • 2 total stops
  • 58h 30m total
  • Maine to London
Search Deals
Icelandair
  • Icelandair
  • 26/9
  • 1 total stop
  • 10h 05m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£94 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 11 August 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

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Tue 13/10

17:40-17:00

2 stops18h 20m

London Heathrow

Mon 19/10

21:05-15:35

2 stops23h 30m

£495

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sat 24/10

17:50-15:35

2 stops16h 45m

London Heathrow

Wed 28/10

19:50-16:40

2 stops24h 50m

£502

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 24/9

17:40-16:00

1 stop17h 20m

London Heathrow

Thu 1/10

21:05-15:35

2 stops23h 30m

£514

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 24/9

17:40-17:00

2 stops18h 20m

London Heathrow

Tue 29/9

07:05-15:35

2 stops13h 30m

£516

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sat 26/9

17:40-17:00

2 stops18h 20m

London Heathrow

Wed 30/9

21:05-15:35

2 stops23h 30m

£518

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 12/11

17:35-21:20

2 stops22h 45m

London Heathrow

Mon 16/11

17:00-15:40

1 stop27h 40m

£521

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Tue 10/11

17:35-09:20

1 stop10h 45m

London Heathrow

Fri 13/11

09:55-15:40

2 stops34h 45m

£546

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Sun 6/12

06:30-08:25

1 stop20h 55m

London Heathrow

Tue 8/12

06:50-22:04

2 stops20h 14m

£547

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 28/1

12:00-16:00

2 stops23h 00m

London Heathrow

Mon 1/2

21:05-15:40

2 stops23h 35m

£553

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 10/9

22:00-08:40

1 stop29h 40m

London Heathrow

Sun 13/9

08:30-16:11

1 stop12h 41m

£590

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 49 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 Scandinavian Airlines, United Airlines, and Delta fly from Maine to London Heathrow Airport in about 13h 27m. The time it takes to get you to your destination can typically vary by up to 7h 28m. Maine and London Heathrow Airport are separated by a distance of 3173 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, Bangor - London Heathrow and Portland - 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
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Southend-on-Sea
Swindon
Enfield
Kingston upon Thames
Southall
Poole

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Maine to Heathrow

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

Fly with Cheapflights

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

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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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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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