Cheap flights from Maine to London Heathrow Airport from £147

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Maine to Heathrow

Keep the following information in mind while searching for Maine to Heathrow flight deals. Data was last updated 18 September 2025.

Round-trip from

£328

One-way from

£147

Popular in

July

Cheapest in

October

Average price

£579
LEVEL
  • LEVEL
  • 15/10-22/10
  • 2 total stops
  • 45h 30m total
  • Maine to London
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 15/11
  • 1 total stop
  • 33h 15m total
  • Maine to London
Highest demand for flights based on searches. 16% potential increase in price (£93 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Maine to Heathrow

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 18 September 2025.

Wed 15/1023:00BOS - LHR
1 stop16h 05mLEVEL
Wed 22/1020:50LHR - BOS
1 stop29h 25mLEVEL
Deal found 15/9£328
Sun 28/920:15BOS - LHR
Nonstop6h 50mVirgin Atlantic
Tue 7/1009:00LHR - BOS
1 stop11h 05mVirgin Atlantic
Deal found 16/9£338
Fri 24/1018:10BOS - LHR
1 stop11h 10mTAP AIR PORTUGAL
Sun 9/1106:00LHR - BOS
1 stop13h 35mTAP AIR PORTUGAL
Deal found 15/9£339
Wed 19/1123:55BOS - LHR
Nonstop6h 30mVirgin Atlantic
Mon 24/1113:05LHR - BOS
Nonstop7h 55mVirgin Atlantic
Deal found 17/9£339
Wed 1/1020:15BOS - LHR
Nonstop6h 50mVirgin Atlantic
Wed 15/1012:25LHR - BOS
Nonstop7h 55mVirgin Atlantic
Deal found 17/9£340
Fri 17/1010:40BOS - LHR
2 stops14h 50mMultiple Airlines
Sun 19/1006:00LHR - BOS
1 stop14h 25mMultiple Airlines
Deal found 16/9£341
Tue 14/1018:35BOS - LHR
1 stop9h 30mAer Lingus
Wed 22/1009:50LHR - BOS
1 stop10h 40mAer Lingus
Deal found 16/9£341
Wed 19/1118:05BOS - LHR
1 stop12h 20mTAP AIR PORTUGAL
Wed 26/1106:00LHR - BOS
1 stop13h 35mTAP AIR PORTUGAL
Deal found 16/9£342
Fri 17/1018:35BOS - LHR
1 stop9h 30mAer Lingus
Sun 2/1110:00LHR - BOS
1 stop11h 50mAer Lingus
Deal found 17/9£343
Fri 24/1018:35BOS - LHR
1 stop9h 30mAer Lingus
Fri 31/1012:10LHR - BOS
1 stop11h 45mAer Lingus
Deal found 16/9£344
Fri 3/1018:35BOS - LHR
1 stop9h 30mAer Lingus
Fri 10/1009:50LHR - BOS
1 stop9h 50mAer Lingus
Deal found 15/9£344
Fri 10/1018:35BOS - LHR
1 stop9h 30mAer Lingus
Fri 17/1008:50LHR - BOS
1 stop10h 50mAer Lingus
Deal found 16/9£345

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 18 September 2025.
Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.

Fly from

Maine

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 20/10

22:45-10:30

Nonstop6h 45m

London Heathrow

Tue 28/10

08:55-17:20

1 stop12h 25m

£352

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 21/10

20:15-08:05

Nonstop6h 50m

London Heathrow

Tue 28/10

09:00-17:20

1 stop12h 20m

£352

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 26/11

23:55-11:25

Nonstop6h 30m

London Heathrow

Thu 4/12

06:20-13:35

1 stop12h 15m

£352

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 30/9

17:05-11:00

1 stop12h 55m

London Heathrow

Wed 8/10

06:15-13:40

1 stop12h 25m

£355

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 15/10

22:45-10:30

Nonstop6h 45m

London Heathrow

Wed 22/10

09:40-12:25

Nonstop7h 45m

£358

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 24/10

20:15-08:05

Nonstop6h 50m

London Heathrow

Tue 28/10

08:55-17:20

1 stop12h 25m

£363

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 5/10

19:05-06:45

Nonstop6h 40m

London Heathrow

Sun 12/10

14:45-20:20

1 stop10h 35m

£363

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 1/12

20:00-07:50

Nonstop6h 50m

London Heathrow

Sun 7/12

06:20-13:35

1 stop12h 15m

£363

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 3/11

19:10-06:50

Nonstop6h 40m

London Heathrow

Mon 17/11

08:55-16:20

1 stop12h 25m

£363

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 19/11

23:55-11:25

Nonstop6h 30m

London Heathrow

Mon 24/11

06:20-13:40

1 stop12h 20m

£363

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 50 results
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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

What is the cheapest month to book a flight from Maine to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £112). Flying from Maine to London Heathrow Airport in August is currently the most expensive (average of £164). 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 ME to LHR?

Find hourly flight availability from Maine to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maine to London Heathrow Airport as you normally would.

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 Delta and Virgin Atlantic fly from Maine to London Heathrow Airport in about 6h 45m. The time it takes to get you to your destination can typically vary by up to 6h 40m. Maine and London Heathrow Airport are separated by a distance of 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 Maine to London Heathrow Airport one-way?

    £149 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on British Airways and American Airlines, with prices starting from £163 and £163, respectively.

  • What are the most popular routes from Maine to London Heathrow Airport?

  • 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.

  • What is the cheapest month to book a flight from Maine to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £112). Flying from Maine to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Swindon
Dartford
Guildford
Brentford

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.

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.

Can Cheapflights notify me if prices for flights from Maine to Heathrow become cheaper?

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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