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Cheap flights from Maine to London from £193

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
31 May — 7 Jun1
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 1 May 2026.

Fri 29/520:05
BOS
-
STN
3 stops23h 45m
Multiple Airlines
Tue 2/619:40
STN
-
BOS
3 stops24h 07m
Multiple Airlines
Deal found 26/4£442
Thu 22/1023:00
BOS
-
LGW
1 stop32h 15m
LEVEL
Tue 27/1013:00
LGW
-
BOS
1 stop12h 55m
LEVEL
Deal found 26/4£443
Wed 16/923:00
BOS
-
LGW
1 stop15h 10m
Multiple Airlines
Thu 24/913:00
LGW
-
BOS
1 stop13h 15m
Multiple Airlines
Deal found 26/4£444
Thu 10/923:00
BOS
-
LGW
1 stop30h 15m
LEVEL
Sun 20/913:00
LGW
-
BOS
1 stop14h 05m
LEVEL
Deal found 26/4£449
Thu 15/1023:00
BOS
-
LGW
1 stop19h 10m
LEVEL
Sun 18/1013:00
LGW
-
BOS
1 stop14h 05m
LEVEL
Deal found 26/4£450
Mon 4/520:50
BOS
-
STN
2 stops22h 30m
Multiple Airlines
Tue 12/507:05
STN
-
BOS
2 stops16h 45m
Multiple Airlines
Deal found 26/4£450
Wed 16/923:00
BOS
-
LTN
1 stop14h 05m
Multiple Airlines
Wed 23/912:45
LTN
-
BOS
1 stop13h 30m
Multiple Airlines
Deal found 26/4£452
Wed 16/923:00
BOS
-
STN
1 stop15h 20m
Multiple Airlines
Sun 20/909:15
STN
-
BOS
1 stop17h 50m
Multiple Airlines
Deal found 26/4£452
Fri 4/1219:50
BOS
-
LGW
2 stops16h 05m
Multiple Airlines
Sat 12/1213:00
LGW
-
BOS
1 stop12h 55m
Multiple Airlines
Deal found 26/4£453
Thu 10/923:00
BOS
-
LHR
1 stop16h 05m
LEVEL
Sun 20/909:55
LHR
-
BOS
1 stop17h 10m
LEVEL
Deal found 26/4£454
Thu 17/923:00
BOS
-
LGW
1 stop13h 45m
Multiple Airlines
Thu 24/913:00
LGW
-
BOS
1 stop13h 15m
Multiple Airlines
Deal found 26/4£454
Fri 29/520:05
BOS
-
STN
3 stops23h 45m
Multiple Airlines
Sat 6/620:10
STN
-
BOS
2 stops28h 45m
Multiple Airlines
Deal found 26/4£454

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 1 May 2026.

Round-trip from

£442

One-way from

£193

Popular in

July

Cheapest in

October

Average price

£540
29/5-2/6
  • 29/5-2/6
  • 6 total stops
  • 47h 52m total
  • Maine to London
Search Deals
6/10
  • 6/10
  • 2 total stops
  • 14h 00m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£131 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 1 May 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

Mon 28/9

17:10-08:20

1 stop34h 10m

London Heathrow

Thu 1/10

06:50-16:49

2 stops14h 59m

£491

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sun 10/5

14:38-10:20

1 stop14h 42m

London Heathrow

Sat 16/5

08:20-00:43

1 stop21h 23m

£543

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 13/5

12:50-07:10

1 stop13h 20m

London Heathrow

Wed 20/5

09:20-23:12

1 stop18h 52m

£543

BangorLondon

BGR - LHR

BGRLHR

Bangor

Tue 1/9

15:00-06:45

1 stop10h 45m

London Heathrow

Mon 14/9

06:15-14:23

2 stops37h 08m

£544

BangorLondon

BGR - LHR

BGRLHR

Bangor

Sat 26/9

14:40-13:15

1 stop17h 35m

London Heathrow

Sat 10/10

11:20-14:21

1 stop32h 01m

£548

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 20/8

18:50-10:00

1 stop10h 10m

London Heathrow

Mon 31/8

13:50-19:55

1 stop11h 05m

£553

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Sun 13/9

21:15-13:25

1 stop11h 10m

London Luton

Sun 20/9

09:00-14:55

1 stop10h 55m

£556

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 4/9

19:05-06:45

Nonstop6h 40m

London Heathrow

Fri 11/9

09:55-16:35

1 stop11h 40m

£557

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 17/8

20:45-12:05

1 stop10h 20m

London Heathrow

Sun 23/8

16:20-19:05

Nonstop7h 45m

£565

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 12/7

23:35-09:10

1 stop28h 35m

London Heathrow

Wed 22/7

20:50-21:45

1 stop29h 55m

£568

Flights are sorted by cheapest return flights first.

Deals found on 26/4

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, KLM, and Delta can get you from Maine to London in just under 10h 45m. Your travel time can differ by up to 23h 25m. The distance between Maine and London is about 3067 mi. This flight may include one or multiple stops.

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

    £73 is the cheapest one-way deal found within the past few days, from Ajet. You may also be able to find cheap deals on Air France and Aegean Airlines, with prices starting from £88 and £105, 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.

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
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford
Chelmsford

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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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Los Angeles to London City flights
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Boston to Stansted flights
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Baltimore to Gatwick flights
Reagan-National to Gatwick flights
Orlando to Gatwick flights
O'Hare Intl to Gatwick flights
Philadelphia to Heathrow flights
San Francisco to London City flights
O'Hare Intl to Stansted flights
Boston to Edinburgh flights
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LaGuardia to Stansted flights
O'Hare Intl to London City flights
Seattle to Gatwick flights

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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