How long does it take to fly to London?

Flight times from Maine to London vary, but if you’re flying out of Portland and flying into London Heathrow Airport (one of the most popular routes), then the duration is 9h 45m on average. Another popular route from Maine to London is flying from Bangor to London Heathrow Airport, which will take roughly 13h 19m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Maine to London?

Delta, KLM, and British Airways are the most popular carriers operating from Maine to London

How many flights depart from Maine to London on average per week?

245 flights are operational weekly from Maine to London as of August 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

When did momondo last update prices for flights from Maine to London?

Prices for flights from Maine to London refresh daily.

How many operators does momondo search for flights from Maine to London?

The number of operators available for flights from Maine to London is 8 as of August 2026.

How old do you have to be to fly from Maine to London?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Maine to London.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£191 Cheap Flights from Maine to London in 2026

Find the cheapest flights from Maine to London

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

17:40 - 10:20BOS Boston Logan Intl-LGW London Gatwick

35h 40m3 stops Kastrup Copenhagen Helsinki-Vantaa Stockholm Arlanda

17:20 - 15:35LGW London Gatwick-BOS Boston Logan Intl

27h 15m3 stops Riga Intl Helsinki-Vantaa Kastrup Copenhagen

£461Multiple Airlines

Sun, 11 Oct - Sun, 18 Oct

22:55 - 10:50BOS Boston Logan Intl-LGW London Gatwick

30h 55m1 stop Barcelona-El Prat

16:30 - 21:05LGW London Gatwick-BOS Boston Logan Intl

33h 35m1 stop Barcelona-El Prat

£461LEVEL

Wed, 30 Sep - Wed, 7 Oct

07:25 - 18:55BOS Boston Logan Intl-LHR London Heathrow

6h 30mdirect

17:35 - 20:05LHR London Heathrow-BOS Boston Logan Intl

7h 30mdirect

£492British Airways

Mon, 12 Oct - Wed, 21 Oct

21:30 - 09:15BOS Boston Logan Intl-LHR London Heathrow

6h 45mdirect

11:40 - 14:20LHR London Heathrow-BOS Boston Logan Intl

7h 40mdirect

£498British Airways

Wed, 11 Nov - Sun, 15 Nov

19:05 - 06:45BOS Boston Logan Intl-LHR London Heathrow

6h 40mdirect

06:30 - 13:19LHR London Heathrow-BOS Boston Logan Intl

11h 49m1 stop Amsterdam Schiphol

£540KLM

Mon, 7 Sep - Wed, 9 Sep

19:05 - 06:45BOS Boston Logan Intl-LHR London Heathrow

6h 40mdirect

06:30 - 13:19LHR London Heathrow-BOS Boston Logan Intl

11h 49m1 stop Amsterdam Schiphol

£540KLM

Sun, 13 Sep - Tue, 15 Sep

21:30 - 09:15BOS Boston Logan Intl-LHR London Heathrow

6h 45mdirect

08:40 - 18:30LHR London Heathrow-BOS Boston Logan Intl

14h 50m1 stop Amsterdam Schiphol

£540Virgin Atlantic

Wed, 16 Sep - Fri, 18 Sep

21:30 - 09:15BOS Boston Logan Intl-LHR London Heathrow

6h 45mdirect

06:30 - 16:35LHR London Heathrow-BOS Boston Logan Intl

15h 05m1 stop Amsterdam Schiphol

£540Virgin Atlantic

Wed, 9 Sep - Fri, 11 Sep

21:30 - 09:15BOS Boston Logan Intl-LHR London Heathrow

6h 45mdirect

08:55 - 15:00LHR London Heathrow-BOS Boston Logan Intl

11h 05m1 stop Paris Charles de Gaulle

£553Air France

Fri, 18 Sep - Sun, 20 Sep

21:45 - 13:45BOS Boston Logan Intl-LHR London Heathrow

11h 00m1 stop Paris Charles de Gaulle

09:40 - 12:19LHR London Heathrow-BOS Boston Logan Intl

7h 39mdirect

£554Air France

Thu, 20 Aug - Sat, 22 Aug

Cheap last-minute flights

Enter your travel dates to find the best prices.

19:10 - 06:45BOS Boston Logan Intl-LHR London Heathrow

6h 35mdirect

18:55 - 21:20LHR London Heathrow-BOS Boston Logan Intl

7h 25mdirect

£565Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

17:10 - 13:00BOS Boston Logan Intl-LHR London Heathrow

14h 50m1 stop Zurich

06:00 - 15:10LHR London Heathrow-BOS Boston Logan Intl

14h 10m1 stop Zurich

£566SWISS

Tue, 11 Aug - Wed, 19 Aug

20:05 - 08:00BOS Boston Logan Intl-LHR London Heathrow

6h 55mdirect

09:15 - 16:10LHR London Heathrow-BOS Boston Logan Intl

11h 55m1 stop Madrid Barajas

£573Iberia

Tue, 11 Aug - Sun, 13 Sep

21:49 - 09:35BOS Boston Logan Intl-LGW London Gatwick

6h 46mdirect

12:20 - 15:17LGW London Gatwick-BOS Boston Logan Intl

7h 57mdirect

£575JetBlue

Tue, 11 Aug - Wed, 19 Aug

21:49 - 09:35BOS Boston Logan Intl-LGW London Gatwick

6h 46mdirect

12:20 - 15:17LGW London Gatwick-BOS Boston Logan Intl

7h 57mdirect

£575JetBlue

Wed, 12 Aug - Wed, 19 Aug

20:05 - 08:00BOS Boston Logan Intl-LHR London Heathrow

6h 55mdirect

11:30 - 19:10LHR London Heathrow-BOS Boston Logan Intl

12h 40m1 stop Madrid Barajas

£587Iberia

Fri, 14 Aug - Fri, 28 Aug

20:05 - 08:00BOS Boston Logan Intl-LHR London Heathrow

6h 55mdirect

10:05 - 12:40LHR London Heathrow-BOS Boston Logan Intl

7h 35mdirect

£587Finnair

Fri, 14 Aug - Fri, 28 Aug

20:05 - 08:00BOS Boston Logan Intl-LHR London Heathrow

6h 55mdirect

18:05 - 23:55LHR London Heathrow-BOS Boston Logan Intl

10h 50m1 stop New York John F Kennedy Intl

£590Finnair

Wed, 12 Aug - Wed, 19 Aug

20:05 - 08:00BOS Boston Logan Intl-LHR London Heathrow

6h 55mdirect

20:10 - 22:35LHR London Heathrow-BOS Boston Logan Intl

7h 25mdirect

£592British Airways

Tue, 11 Aug - Sun, 13 Sep

21:50 - 09:35BOS Boston Logan Intl-LHR London Heathrow

6h 45mdirect

20:10 - 22:35LHR London Heathrow-BOS Boston Logan Intl

7h 25mdirect

£597British Airways

Sat, 15 Aug - Thu, 27 Aug

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Scandinavian Airlines flights from Maine to London

Our best Scandinavian Airlines deals on Maine to London flight tickets

Scandinavian Airlines

21 Sept

BOS17:40Boston Logan Intl

14h 15m

2 stops

LHR12:55London Heathrow

28 Sept

LHR06:40London Heathrow

13h 55m

1 stop

BOS15:35Boston Logan Intl

£467

Scandinavian Airlines

30 Sept

BOS17:40Boston Logan Intl

34h 15m

2 stops

LHR08:55London Heathrow

3 Oct

LHR06:40London Heathrow

13h 55m

1 stop

BOS15:35Boston Logan Intl

£468

Scandinavian Airlines

20 Nov

BOS17:35Boston Logan Intl

17h 50m

2 stops

LHR16:25London Heathrow

22 Nov

LHR06:40London Heathrow

21h 15m

2 stops

BOS22:55Boston Logan Intl

£469

United Airlines flights from Maine to London

Our best United Airlines deals on Maine to London flight tickets

United Airlines

23 Aug

BOS21:40Boston Logan Intl

13h 45m

1 stop

LHR16:25London Heathrow

25 Aug

LHR16:25London Heathrow

30h 15m

1 stop

BOS17:40Boston Logan Intl

£518

United Airlines

19 Aug

BOS19:23Boston Logan Intl

30h 32m

1 stop

LHR06:55London Heathrow

22 Aug

LHR06:50London Heathrow

22h 09m

2 stops

BOS23:59Boston Logan Intl

£519

United Airlines

9 Nov

PWM08:45Portland

18h 40m

1 stop

LHR08:25London Heathrow

11 Nov

LHR06:50London Heathrow

21h 31m

2 stops

PWM23:21Portland

£547

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonLondon

BOS Boston Logan Intl - LGW London Gatwick

BOSLGW

Boston Logan Intl

Sun 11/10

17:40-10:20

3 stops35h 40m

London Gatwick

Sun 18/10

17:20-15:35

3 stops27h 15m

£461

BostonLondon

BOS Boston Logan Intl - LGW London Gatwick

BOSLGW

Boston Logan Intl

Wed 30/9

22:55-10:50

1 stop30h 55m

London Gatwick

Wed 7/10

16:30-21:05

1 stop33h 35m

£461

Fastest return journey

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Mon 12/10

07:25-18:55

Nonstop6h 30m

London Heathrow

Wed 21/10

17:35-20:05

Nonstop7h 30m

£492

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 11/11

21:30-09:15

Nonstop6h 45m

London Heathrow

Sun 15/11

11:40-14:20

Nonstop7h 40m

£498

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Mon 7/9

19:05-06:45

Nonstop6h 40m

London Heathrow

Wed 9/9

06:30-13:19

1 stop11h 49m

£540

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sun 13/9

19:05-06:45

Nonstop6h 40m

London Heathrow

Tue 15/9

06:30-13:19

1 stop11h 49m

£540

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 16/9

21:30-09:15

Nonstop6h 45m

London Heathrow

Fri 18/9

08:40-18:30

1 stop14h 50m

£540

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 9/9

21:30-09:15

Nonstop6h 45m

London Heathrow

Fri 11/9

06:30-16:35

1 stop15h 05m

£540

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Fri 18/9

21:30-09:15

Nonstop6h 45m

London Heathrow

Sun 20/9

08:55-15:00

1 stop11h 05m

£553

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 20/8

21:45-13:45

1 stop11h 00m

London Heathrow

Sat 22/8

09:40-12:19

Nonstop7h 39m

£554

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Maine to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to London?

The cheapest month to fly to London from Maine is in January. Flight prices, which tend to average around £0, are often lower during this time because this is during the off-season. The month of December is another great option to travel to London, with average flight prices from Maine averaging around £518.

Can stopping save me money on Maine to London flights?

You could potentially save up to 26% on your flight if you consider stops on a Maine to London flight.

Cheap Maine to London flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to London

Fastest flight time	6h 30m
Direct flights	Every day
Airports in London	6 airports

The fastest flight from Maine to London takes 6h 30m

Direct flights go from Maine to London every day.

There are 6 airports in London. From Maine there are direct flights to London Heathrow (LHR).

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Frequently asked questions about flying from Maine to London

When did momondo last update prices for flights from Maine to London?
Prices for flights from Maine to London refresh daily.
How many operators does momondo search for flights from Maine to London?
The number of operators available for flights from Maine to London is 8 as of August 2026.
How old do you have to be to fly from Maine to London?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Maine to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Ipswich

Maidstone

Folkestone

Ilford

Hastings

Canterbury

Chichester

Hayes

Guildford

Bedford

Harlow

Colchester

Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Maine to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Maine.

Can I find flights from Maine to London with flexible booking policies on momondo?

Yes. All flights to London from Maine on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Maine to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Maine to London.

I’m not ready to book a flight from Maine to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Maine to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Cheap flights from Maine to London from £191

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to London departing on 26/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Scandinavian Airlines flights from Maine to London

Our best Scandinavian Airlines deals on Maine to London flight tickets

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Our best United Airlines deals on Maine to London flight tickets

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How to get the cheapest flight ticket from Maine to London

What is the cheapest month to fly to London?

Can stopping save me money on Maine to London flights?

What is the cheapest airline that flies from Maine to London?

How many flights depart from Maine to London on average per week?

How long does it take to fly to London?

Cheap Maine to London flight deals and tips

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Frequently asked questions about flying from Maine to London

Travelling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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