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Cheap flights from Maine to London from £168

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
11 May — 18 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 11 April 2026.

Thu 7/523:00
BOS
-
LTN
2 stops13h 00m
Multiple Airlines
Thu 14/505:40
LTN
-
BOS
1 stop20h 25m
Multiple Airlines
Deal found 7/4£419
Mon 27/420:50
BOS
-
LGW
2 stops20h 20m
Multiple Airlines
Mon 4/507:40
LGW
-
BOS
2 stops19h 05m
Multiple Airlines
Deal found 7/4£419
Mon 11/523:15
BOS
-
LGW
1 stop31h 05m
TAP AIR PORTUGAL
Tue 19/521:15
LGW
-
BOS
1 stop28h 05m
TAP AIR PORTUGAL
Deal found 10/4£420
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£421
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£422
Fri 13/1117:35
BOS
-
LHR
2 stops14h 20m
Scandinavian Airlines
Sun 15/1106:40
LHR
-
BOS
2 stops14h 00m
Scandinavian Airlines
Deal found 9/4£423
Mon 20/423:00
BOS
-
LGW
2 stops16h 20m
Multiple Airlines
Wed 29/420:50
LGW
-
BOS
3 stops29h 55m
Multiple Airlines
Deal found 9/4£423
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£423
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£424
Thu 7/511:46
BOS
-
LGW
1 stop17h 14m
Multiple Airlines
Thu 14/513:00
LGW
-
BOS
1 stop13h 05m
Multiple Airlines
Deal found 7/4£425
Thu 30/420:50
BOS
-
LTN
2 stops21h 50m
Multiple Airlines
Mon 4/505:55
LTN
-
BOS
2 stops20h 50m
Multiple Airlines
Deal found 10/4£426
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£427

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 11 April 2026.

Round-trip from

£419

One-way from

£168

Popular in

July

Cheapest in

October

Average price

£637
7/5-14/5
  • 7/5-14/5
  • 3 total stops
  • 33h 25m total
  • Maine to London
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 16h 20m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£142 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£45 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 11 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 - LTN

BOSLTN

Boston Logan Intl

Tue 28/4

20:50-23:45

3 stops21h 55m

London Luton

Wed 13/5

06:15-22:39

3 stops21h 24m

£446

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Sun 26/4

20:50-00:50

3 stops23h 00m

London Stansted

Sun 10/5

06:35-09:45

3 stops32h 10m

£456

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Sat 9/5

22:50-08:50

1 stop29h 00m

London Gatwick

Tue 12/5

07:40-21:05

1 stop18h 25m

£501

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 23/9

21:50-22:10

1 stop19h 20m

London Stansted

Fri 2/10

17:35-19:55

1 stop31h 20m

£538

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

£538

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

£538

PortlandLondon

PWM - LHR

PWMLHR

Portland

Sun 10/5

14:38-08:50

1 stop13h 12m

London Heathrow

Sat 16/5

06:30-00:43

2 stops23h 13m

£539

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 4/5

05:21-07:15

1 stop20h 54m

London Heathrow

Mon 11/5

13:25-23:09

1 stop14h 44m

£544

BangorLondon

BGR - LHR

BGRLHR

Bangor

Sat 26/9

15:00-12:05

1 stop16h 05m

London Heathrow

Sat 10/10

12:25-13:35

2 stops30h 10m

£547

BangorLondon

BGR - LHR

BGRLHR

Bangor

Thu 1/10

15:00-08:50

1 stop12h 50m

London Heathrow

Sun 18/10

11:20-14:21

1 stop32h 01m

£548

Flights are sorted by cheapest return flights first.

Deals found on 8/4

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?

    LEVEL, Turkish Airlines, and Delta can get you from Maine to London in just under 13h 12m. Your travel time can differ by up to 15h 48m. The distance between Maine and London is about 3173 mi. This flight may include one or multiple stops.

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

    £74 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 £106, 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
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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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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