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Cheap flights from Maine to London from £141

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
11 Jan — 18 Jan1
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 12 December 2025.

Wed 31/1205:20BOS - LHR
1 stop24h 30mUnited Airlines
Tue 13/113:25LHR - BOS
1 stop30h 27mUnited Airlines
Deal found 9/12£376
Thu 11/1218:40BOS - LHR
1 stop20h 55mUnited Airlines
Sun 14/1213:25LHR - BOS
2 stops28h 04mUnited Airlines
Deal found 10/12£377
Wed 10/1220:00BOS - LHR
Nonstop6h 50mVirgin Atlantic
Sun 14/1219:40LHR - BOS
Nonstop7h 35mVirgin Atlantic
Deal found 10/12£378
Tue 30/1219:10BOS - LHR
Nonstop6h 40mDelta
Wed 14/106:20LHR - BOS
1 stop15h 00mDelta
Deal found 9/12£379
Thu 11/1220:00BOS - LHR
Nonstop6h 50mDelta
Mon 15/1208:40LHR - BOS
1 stop15h 15mDelta
Deal found 10/12£379
Wed 31/1219:15BOS - LHR
Nonstop6h 45mFinnair
Mon 19/115:35LHR - BOS
1 stop12h 21mFinnair
Deal found 11/12£380
Wed 31/1219:15BOS - LHR
Nonstop6h 45mFinnair
Fri 9/117:00LHR - BOS
1 stop10h 56mFinnair
Deal found 11/12£381
Thu 11/1219:15BOS - LHR
Nonstop6h 45mFinnair
Mon 15/1217:00LHR - BOS
1 stop10h 54mFinnair
Deal found 11/12£382
Thu 11/1219:15BOS - LHR
Nonstop6h 45mBritish Airways
Sun 14/1211:25LHR - BOS
1 stop13h 25mBritish Airways
Deal found 10/12£382
Tue 30/1219:10BOS - LHR
Nonstop6h 40mDelta
Mon 12/113:05LHR - BOS
Nonstop7h 55mDelta
Deal found 9/12£383
Thu 11/1220:00BOS - LHR
Nonstop6h 50mDelta
Tue 16/1213:05LHR - BOS
Nonstop7h 55mDelta
Deal found 10/12£384
Wed 31/1210:15BOS - LHR
2 stops18h 05mMultiple Airlines
Sun 10/506:00LHR - BOS
1 stop18h 55mMultiple Airlines
Deal found 10/12£385

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 12 December 2025.

Round-trip from

£376

One-way from

£141

Popular in

June

Cheapest in

October

Average price

£539
7/2-14/2
  • 7/2-14/2
  • 5 total stops
  • 42h 32m total
  • Maine to London
Search Deals
2/2
  • 2/2
  • 1 total stop
  • 22h 00m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 2025.
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 - LTN

BOSLTN

Boston Logan Intl

Wed 11/3

20:50-20:50

1 stop20h 00m

London Luton

Wed 18/3

08:00-18:50

1 stop14h 50m

£379

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 14/2

18:40-20:35

1 stop20h 55m

London Heathrow

Thu 19/2

06:35-18:35

1 stop17h 00m

£380

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 30/12

18:40-20:35

1 stop20h 55m

London Heathrow

Mon 12/1

09:00-15:15

2 stops35h 15m

£381

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 18/2

05:35-10:50

1 stop24h 15m

London Heathrow

Sun 22/2

13:25-09:32

1 stop25h 07m

£382

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 26/1

12:08-07:10

2 stops14h 02m

London Heathrow

Tue 3/2

12:05-20:20

1 stop13h 15m

£382

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 21/2

19:15-06:50

Nonstop6h 35m

London Heathrow

Sat 28/2

06:20-13:40

1 stop12h 20m

£385

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 7/1

20:00-07:50

Nonstop6h 50m

London Heathrow

Wed 21/1

09:00-16:20

1 stop12h 20m

£385

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 14/3

20:10-06:50

Nonstop6h 40m

London Heathrow

Sun 22/3

06:30-14:20

1 stop11h 50m

£385

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Sun 15/3

20:50-10:55

1 stop10h 05m

London Gatwick

Tue 24/3

11:55-18:50

1 stop10h 55m

£385

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 25/3

21:00-07:50

Nonstop6h 50m

London Heathrow

Tue 31/3

06:30-13:35

1 stop12h 05m

£385

Flights are sorted by cheapest return flights first.

Deals found on 11/12

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 £440). Flying from Maine to London in December is currently the most expensive (average of £1,099). 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?

    United Airlines, Icelandair, and LEVEL can get you from Maine to London in just under 10h 05m. Your travel time can differ by up to 18h 05m. The distance between Maine and London is about 3272 mi. This flight may include one or multiple stops.

  • 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 £440). Flying from Maine to London in December is currently the most expensive (average of £1,099). 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
Slough
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Watford
Hayes
Crawley
Winchester
Deal
Bedford
Romford
Chichester
Guildford
Ipswich

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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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