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Cheap flights from Maine to London from £148

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 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
1 Feb — 8 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Maine to London

Enter your travel dates to find the best prices.

Cheapest flights from Maine to London
Explore the most affordable flight options available from Maine to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 January 2026.

Wed 31/1221:50BOS - LHR
1 stop10h 10mMultiple Airlines
Thu 15/111:10LHR - BOS
1 stop12h 25mMultiple Airlines
Deal found 31/12£370
Wed 31/1219:10BOS - LHR
Nonstop6h 45mJetBlue
Thu 15/109:20LHR - BOS
Nonstop7h 56mJetBlue
Deal found 31/12£376
Wed 31/1216:28BOS - LHR
1 stop10h 57mUnited Airlines
Thu 15/111:10LHR - BOS
1 stop12h 25mUnited Airlines
Deal found 31/12£377
Wed 31/1221:50BOS - LGW
1 stop15h 00mSWISS
Sun 10/509:25LGW - BOS
1 stop11h 05mSWISS
Deal found 31/12£378
Wed 31/1219:10BOS - LHR
Nonstop6h 40mKLM
Fri 9/109:40LHR - BOS
Nonstop7h 50mKLM
Deal found 31/12£383
Wed 31/1215:40BOS - LHR
2 stops12h 40mAir Canada
Sat 10/109:00LHR - BOS
1 stop13h 50mAir Canada
Deal found 31/12£385
Wed 31/1218:15BOS - LHR
1 stop12h 25mDelta
Fri 9/109:40LHR - BOS
Nonstop7h 50mDelta
Deal found 31/12£386
Wed 31/1223:55BOS - LHR
Nonstop6h 30mDelta
Sun 10/506:30LHR - BOS
1 stop11h 46mDelta
Deal found 31/12£390
Wed 31/1219:10BOS - LHR
Nonstop6h 40mDelta
Sat 10/120:00LHR - BOS
1 stop16h 33mDelta
Deal found 31/12£390
Wed 31/1216:35BOS - LHR
1 stop13h 45mAir Canada
Thu 15/109:00LHR - BOS
2 stops14h 02mAir Canada
Deal found 31/12£393
Wed 31/1213:00BOS - LHR
2 stops13h 10mMultiple Airlines
Fri 9/113:25LHR - BOS
2 stops15h 24mMultiple Airlines
Deal found 31/12£400
Wed 31/1210:45BOS - LHR
2 stops15h 25mAir Canada
Sun 10/512:40LHR - BOS
1 stop10h 05mAir Canada
Deal found 31/12£402

Find flight deals from Maine to London

Keep the following information in mind while searching for Maine to London flight deals. Data was last updated 2 January 2026.

Round-trip from

£370

One-way from

£148

Popular in

June

Cheapest in

October

Average price

£878
Austrian Airlines
  • Austrian Airlines
  • 21/1-25/1
  • 3 total stops
  • 31h 27m total
  • Maine to London
Search Deals
29/1
  • 29/1
  • 1 total stop
  • 22h 00m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£99 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Maine to London 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 2 January 2026.
Use the filters below to find and compare flights from Maine to London that are best for you.

Fly from

Maine

Fly to

London

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 15/3

20:16-06:55

Nonstop6h 39m

London Heathrow

Tue 17/3

09:20-13:16

Nonstop7h 56m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 20/3

18:40-20:35

1 stop21h 55m

London Heathrow

Wed 25/3

12:05-21:20

1 stop13h 15m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 1/2

19:12-06:55

Nonstop6h 43m

London Heathrow

Wed 11/2

09:20-12:20

Nonstop8h 00m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 4/2

19:12-06:55

Nonstop6h 43m

London Heathrow

Fri 6/2

09:20-12:20

Nonstop8h 00m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 21/2

19:12-06:55

Nonstop6h 43m

London Heathrow

Sat 28/2

09:20-12:19

Nonstop7h 59m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 1/2

19:12-06:55

Nonstop6h 43m

London Heathrow

Mon 16/2

09:20-12:20

Nonstop8h 00m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 15/2

18:40-20:35

1 stop20h 55m

London Heathrow

Thu 19/2

09:00-17:21

2 stops37h 21m

£379

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 23/2

18:40-20:35

1 stop20h 55m

London Heathrow

Fri 27/2

06:35-18:35

1 stop17h 00m

£380

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 14/2

06:00-20:35

1 stop9h 35m

London Heathrow

Tue 17/2

13:45-20:20

1 stop11h 35m

£380

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 19/1

15:40-14:05

2 stops17h 25m

London Stansted

Fri 30/1

08:05-22:37

3 stops19h 32m

£382

Flights are sorted by cheapest return flights first.

Deals found on 31/12

Showing 1-10 of 60 results
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Best time to book a flight from Maine to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, April is the cheapest month in which you can book a flight from Maine to London (average of £437). Flying from Maine to London in December is currently the most expensive (average of £1,092). 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.

How much does it cost for a return flight from Maine to London?

Related info for your journey

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

    JetBlue, United Airlines, and SWISS can get you from Maine to London in just under 6h 39m. Your travel time can differ by up to 15h 16m. The distance between Maine and London is about 3254 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Maine to London one-way?

    £106 is the cheapest one-way deal found within the past few days, from Aegean Airlines. You may also be able to find cheap deals on Pegasus Airlines and Air France, with prices starting from £117 and £147, respectively.

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

    When deciding which route to take from Maine to London consider Boston Logan Intl - London Heathrow, Boston Logan Intl - London Gatwick or Boston Logan Intl - London City as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maine to London 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?

    Currently, April is the cheapest month in which you can book a flight from Maine to London (average of £437). Flying from Maine to London in December is currently the most expensive (average of £1,092). 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?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Slough
Hounslow
Gatwick
Ilford
Wembley
Hayes
Brentford
Colchester
Watford
Crawley
Bedford
Chelmsford
Romford
Eastbourne
Ipswich
Bishop's Stortford
Guildford

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Alternative routes for Maine to London

See prices for flight routes from nearby airports that may be better suited for you.
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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 Maine to London?

When you search for this flight from Maine to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to London from Maine by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to London 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 London become cheaper?

Not ready to book yet? You can track prices for flights from Maine to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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