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Cheap flights from Maine to London from £159

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Maine to London

Keep the following information in mind while searching for Maine to London flight deals. Data was last updated 16 January 2026.

Round-trip from

£368

One-way from

£159

Popular in

June

Cheapest in

October

Average price

£641
British Airways
  • British Airways
  • 22/4-27/4
  • 2 total stops
  • 33h 25m total
  • Maine to London
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Air Canada
  • Air Canada
  • 22/4
  • 2 total stops
  • 12h 00m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find 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 16 January 2026.

Sun 29/315:35
BOS
-
LHR
1 stop9h 55m
Multiple Airlines
Sat 11/406:55
LHR
-
BOS
1 stop15h 45m
Multiple Airlines
Deal found 15/1£368
Wed 18/221:50
BOS
-
LGW
1 stop15h 00m
SWISS
Wed 4/318:40
LGW
-
BOS
1 stop30h 40m
SWISS
Deal found 15/1£368
Wed 11/220:00
BOS
-
LHR
Nonstop6h 50m
KLM
Wed 18/213:05
LHR
-
BOS
Nonstop7h 55m
KLM
Deal found 14/1£368
Fri 16/116:15
BOS
-
LTN
2 stops19h 00m
Multiple Airlines
Fri 23/105:50
LTN
-
BOS
3 stops21h 47m
Multiple Airlines
Deal found 15/1£368
Thu 12/312:35
BOS
-
LGW
1 stop18h 20m
Icelandair
Wed 18/311:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Deal found 14/1£368
Sun 25/121:15
BOS
-
STN
1 stop12h 35m
Multiple Airlines
Sat 31/112:00
STN
-
BOS
1 stop11h 59m
Multiple Airlines
Deal found 14/1£368
Thu 12/310:15
BOS
-
LHR
1 stop16h 55m
United Airlines
Tue 17/312:05
LHR
-
BOS
1 stop13h 15m
United Airlines
Deal found 13/1£369
Thu 29/119:50
BOS
-
LTN
2 stops15h 10m
Multiple Airlines
Mon 2/206:00
LTN
-
BOS
2 stops16h 50m
Multiple Airlines
Deal found 16/1£369
Thu 5/219:50
BOS
-
LGW
1 stop10h 05m
Icelandair
Sun 8/211:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Deal found 14/1£369
Fri 13/206:00
BOS
-
LHR
1 stop10h 20m
United Airlines
Wed 25/213:45
LHR
-
BOS
1 stop11h 35m
United Airlines
Deal found 13/1£370
Wed 4/217:10
BOS
-
LTN
1 stop10h 25m
Multiple Airlines
Wed 11/206:50
LTN
-
BOS
1 stop12h 05m
Multiple Airlines
Deal found 14/1£370
Thu 29/115:35
BOS
-
LGW
2 stops22h 25m
Iberia
Wed 4/211:45
LGW
-
BOS
1 stop13h 05m
Iberia
Deal found 15/1£370

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 16 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 - LTN

BOSLTN

Boston Logan Intl

Thu 29/1

19:50-16:00

2 stops15h 10m

London Luton

Mon 2/2

06:00-17:50

2 stops16h 50m

£369

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Mon 23/2

15:49-19:00

2 stops22h 11m

London Gatwick

Mon 2/3

19:40-15:15

1 stop24h 35m

£369

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Thu 7/5

20:50-23:20

2 stops21h 30m

London Stansted

Sun 10/5

06:30-21:45

2 stops20h 15m

£369

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 31/1

06:00-21:20

1 stop10h 20m

London Heathrow

Tue 3/2

13:45-20:20

1 stop11h 35m

£370

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Mon 2/3

19:50-14:00

1 stop13h 10m

London Luton

Mon 9/3

08:00-18:50

1 stop14h 50m

£371

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 25/2

17:10-09:50

1 stop11h 40m

London Stansted

Wed 4/3

06:30-13:55

1 stop12h 25m

£371

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 12/2

09:45-05:55

1 stop15h 10m

London Heathrow

Mon 16/2

14:50-14:05

1 stop28h 15m

£371

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Thu 29/1

19:50-16:00

2 stops15h 10m

London Luton

Sun 1/2

08:05-17:50

2 stops14h 45m

£373

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 11/2

19:15-06:50

Nonstop6h 35m

London Heathrow

Mon 16/2

06:30-13:25

1 stop11h 55m

£375

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 16/3

20:10-06:50

Nonstop6h 40m

London Heathrow

Mon 23/3

10:00-19:55

1 stop13h 55m

£376

Flights are sorted by cheapest return flights first.

Deals found on 13/1

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 £444). Flying from Maine to London in December is currently the most expensive (average of £1,098). 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.

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?

    British Airways, United Airlines, and KLM can get you from Maine to London in just under 6h 35m. Your travel time can differ by up to 15h 36m. 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 Eurowings, 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 £444). Flying from Maine to London in December is currently the most expensive (average of £1,098). 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
Gatwick
Hounslow
Wembley
Ilford
Brentford
Hayes
Colchester
Watford
Crawley
Kingston upon Thames
Bedford
Chelmsford
Eastbourne
Romford
Folkestone
Southall

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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

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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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