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Cheap flights from Maine to London from £172

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
7 May — 14 May1
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 7 April 2026.

Sun 26/420:50
BOS
-
STN
2 stops15h 25m
Multiple Airlines
Thu 30/408:15
STN
-
BOS
2 stops18h 30m
Multiple Airlines
Deal found 5/4£414
Mon 6/422:30
BOS
-
LGW
1 stop16h 55m
TAP AIR PORTUGAL
Wed 15/412:05
LGW
-
BOS
1 stop13h 15m
TAP AIR PORTUGAL
Deal found 3/4£419
Mon 6/422:30
BOS
-
LGW
1 stop16h 55m
TAP AIR PORTUGAL
Sun 12/421:15
LGW
-
BOS
1 stop28h 05m
TAP AIR PORTUGAL
Deal found 5/4£422
Sat 2/523:00
BOS
-
LTN
2 stops13h 00m
Multiple Airlines
Sat 9/505:40
LTN
-
BOS
1 stop20h 25m
Multiple Airlines
Deal found 2/4£426
Mon 6/422:30
BOS
-
LGW
1 stop16h 55m
TAP AIR PORTUGAL
Mon 13/410:35
LGW
-
BOS
1 stop14h 45m
TAP AIR PORTUGAL
Deal found 5/4£426
Sat 25/420:50
BOS
-
LHR
2 stops18h 05m
Multiple Airlines
Thu 30/406:40
LHR
-
BOS
2 stops20h 05m
Multiple Airlines
Deal found 6/4£428
Sat 25/420:50
BOS
-
LHR
2 stops19h 30m
Multiple Airlines
Wed 29/406:40
LHR
-
BOS
2 stops17h 10m
Multiple Airlines
Deal found 6/4£429
Mon 20/420:50
BOS
-
STN
2 stops22h 30m
Multiple Airlines
Mon 18/506:30
STN
-
BOS
3 stops31h 35m
Multiple Airlines
Deal found 6/4£430
Sat 2/523:15
BOS
-
LGW
1 stop16h 10m
TAP AIR PORTUGAL
Sun 10/512:05
LGW
-
BOS
1 stop13h 15m
TAP AIR PORTUGAL
Deal found 6/4£434
Mon 27/420:50
BOS
-
LGW
2 stops20h 20m
Multiple Airlines
Mon 4/507:40
LGW
-
BOS
2 stops19h 05m
Multiple Airlines
Deal found 5/4£435
Sat 25/423:00
BOS
-
LGW
3 stops28h 40m
Multiple Airlines
Thu 30/411:00
LGW
-
BOS
2 stops15h 45m
Multiple Airlines
Deal found 6/4£437
Wed 6/523:15
BOS
-
LHR
2 stops18h 40m
TAP AIR PORTUGAL
Tue 12/518:45
LHR
-
BOS
1 stop25h 00m
TAP AIR PORTUGAL
Deal found 6/4£439

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 7 April 2026.

Round-trip from

£414

One-way from

£172

Popular in

July

Cheapest in

October

Average price

£647
26/4-30/4
  • 26/4-30/4
  • 4 total stops
  • 33h 55m total
  • Maine to London
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 18h 20m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£132 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£46 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 7 April 2026.
Use the filters below to find and compare flights from Maine to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 6/9

21:40-11:20

1 stop32h 40m

London Heathrow

Wed 9/9

09:30-14:41

1 stop10h 11m

£486

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Thu 23/4

21:50-09:55

1 stop31h 05m

London Stansted

Wed 6/5

10:50-19:55

1 stop38h 05m

£511

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Thu 23/4

22:50-23:10

1 stop19h 20m

London Gatwick

Thu 30/4

16:35-21:05

1 stop33h 30m

£513

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 4/5

21:50-22:10

1 stop19h 20m

London Stansted

Wed 27/5

06:55-19:55

1 stop18h 00m

£518

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 27/4

21:50-22:10

1 stop19h 20m

London Stansted

Fri 8/5

06:55-19:55

1 stop18h 00m

£547

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 29/4

21:50-22:10

1 stop19h 20m

London Stansted

Thu 7/5

17:35-19:55

1 stop31h 20m

£547

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 29/4

21:50-22:10

1 stop19h 20m

London Stansted

Fri 8/5

06:55-19:55

1 stop18h 00m

£547

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sat 2/5

14:51-08:50

1 stop12h 59m

London Heathrow

Sat 9/5

08:55-00:43

2 stops20h 48m

£548

BangorLondon

BGR - LHR

BGRLHR

Bangor

Sat 26/9

15:00-10:20

1 stop14h 20m

London Heathrow

Sat 10/10

19:45-14:21

2 stops23h 36m

£548

PortlandLondon

PWM - LHR

PWMLHR

Portland

Fri 11/9

14:35-12:05

1 stop16h 30m

London Heathrow

Tue 29/9

08:55-23:59

2 stops20h 04m

£548

Flights are sorted by cheapest return flights first.

Deals found on 3/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

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, Turkish Airlines, and LEVEL can get you from Maine to London in just under 19h 20m. Your travel time can differ by up to 13h 20m. 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.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Hounslow
Gatwick
Luton
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Chelmsford
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford

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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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O'Hare Intl to Stansted flights
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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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