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

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

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

200 flights are operational weekly from Maine to London as of June 2026. The most popular departure day for this route is Tue, with 19% of flights per week taking off on this day.

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 40m on average. Another popular route from Maine to London is flying from Bangor to London Heathrow Airport, which will take roughly 14h 09m. Keep in mind that layovers or delays could extend your travel time.

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 9 as of June 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.

£215 Cheap Flights from Maine to London in 2026

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Find the cheapest flights from Maine to London

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

17:25 - 09:30

BOS

LTN

11h 05m

1 stop

13:50 - 18:50

LTN

BOS

10h 00m

1 stop

£529Multiple Airlines

Thu, 20 Aug - Wed, 26 Aug

15:35 - 06:30

BOS

LHR

9h 55m

1 stop

22:00 - 22:38

LHR

BOS

29h 38m

3 stops

£529Multiple Airlines

Fri, 14 Aug - Sun, 16 Aug

20:50 - 14:40

BOS

LGW

12h 50m

1 stop

15:40 - 21:45

LGW

BOS

11h 05m

1 stop

£529Icelandair

Mon, 31 Aug - Wed, 16 Sep

20:50 - 11:55

BOS

LHR

10h 05m

1 stop

13:05 - 18:50

LHR

BOS

10h 45m

1 stop

£530Icelandair

Mon, 31 Aug - Wed, 16 Sep

19:05 - 06:45

BOS

LHR

6h 40mdirect

06:30 - 13:19

LHR

BOS

11h 49m

1 stop

£535KLM

Thu, 3 Sep - Sat, 5 Sep

11:15 - 17:05

BGR

LHR

24h 50m

2 stops

09:00 - 17:04

LHR

BGR

37h 04m

2 stops

£556United Airlines

Sun, 15 Nov - Tue, 17 Nov

11:15 - 17:05

BGR

LHR

24h 50m

2 stops

09:00 - 17:04

LHR

BGR

37h 04m

2 stops

£557United Airlines

Sun, 15 Nov - Tue, 17 Nov

21:05 - 15:15

BOS

LCY

13h 10m

1 stop

07:50 - 16:30

LCY

BOS

12h 40m

1 stop

£564British Airways

Wed, 22 Jul - Wed, 17 Mar

17:40 - 09:00

BOS

LCY

10h 20m

1 stop

09:35 - 16:10

LCY

BOS

11h 35m

1 stop

£567British Airways

Tue, 29 Sep - Tue, 6 Oct

06:00 - 07:15

PWM

LCY

20h 15m

2 stops

09:20 - 00:59

LCY

PWM

20h 39m

2 stops

£8,664KLM

Sun, 19 Jul - Sat, 25 Jul

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Air Canada flights from Maine to London

Our best Air Canada deals on Maine to London flight tickets

Air Canada

4 Jul

BOS15:35Boston Logan Intl

12h 00m

2 stops

LHR08:35London Heathrow

26 Sept

LHR06:50London Heathrow

16h 14m

2 stops

BOS18:04Boston Logan Intl

£625

Air Canada

9 Jul

BOS10:40Boston Logan Intl

14h 55m

2 stops

LHR06:35London Heathrow

14 Aug

LHR09:30London Heathrow

13h 37m

1 stop

BOS18:07Boston Logan Intl

£658

Air Canada

10 Nov

PWM09:10Portland

18h 20m

3 stops

LHR08:30London Heathrow

17 Nov

LHR06:00London Heathrow

22h 23m

3 stops

PWM23:23Portland

£660

British Airways flights from Maine to London

Our best British Airways deals on Maine to London flight tickets

British Airways

8 Oct

BOS19:35Boston Logan Intl

6h 35m

LHR07:10London Heathrow

12 Oct

LHR09:15London Heathrow

11h 55m

1 stop

BOS16:10Boston Logan Intl

£537

British Airways

4 Nov

BOS18:35Boston Logan Intl

6h 40m

LHR06:15London Heathrow

8 Nov

LHR19:10London Heathrow

7h 40m

BOS21:50Boston Logan Intl

£561

British Airways

22 Jul

BOS21:05Boston Logan Intl

13h 10m

1 stop

LCY15:15London City

17 Mar

LCY07:50London City

12h 40m

1 stop

BOS16:30Boston Logan Intl

£564

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Thu 20/8

17:25-09:30

1 stop11h 05m

London Luton

Wed 26/8

13:50-18:50

1 stop10h 00m

£529

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 14/8

15:35-06:30

1 stop9h 55m

London Heathrow

Sun 16/8

22:00-22:38

3 stops29h 38m

£529

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Mon 31/8

20:50-14:40

1 stop12h 50m

London Gatwick

Wed 16/9

15:40-21:45

1 stop11h 05m

£529

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 31/8

20:50-11:55

1 stop10h 05m

London Heathrow

Wed 16/9

13:05-18:50

1 stop10h 45m

£530

Fastest return journey

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 3/9

19:05-06:45

Nonstop6h 40m

London Heathrow

Sat 5/9

06:30-13:19

1 stop11h 49m

£535

BangorLondon

BGR - LHR

BGRLHR

Bangor

Sun 15/11

11:15-17:05

2 stops24h 50m

London Heathrow

Tue 17/11

09:00-17:04

2 stops37h 04m

£556

BangorLondon

BGR - LHR

BGRLHR

Bangor

Sun 15/11

11:15-17:05

2 stops24h 50m

London Heathrow

Tue 17/11

09:00-17:04

2 stops37h 04m

£557

BostonLondon

BOS - LCY

BOSLCY

Boston Logan Intl

Wed 22/7

21:05-15:15

1 stop13h 10m

London City

Wed 17/3

07:50-16:30

1 stop12h 40m

£564

BostonLondon

BOS - LCY

BOSLCY

Boston Logan Intl

Tue 29/9

17:40-09:00

1 stop10h 20m

London City

Tue 6/10

09:35-16:10

1 stop11h 35m

£567

PortlandLondon

PWM - LCY

PWMLCY

Portland

Sun 19/7

06:00-07:15

2 stops20h 15m

London City

Sat 25/7

09:20-00:59

2 stops20h 39m

£8,664

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

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), London Gatwick (LGW).

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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 9 as of June 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

Maidstone

Ipswich

Ilford

Canterbury

Folkestone

Guildford

Hayes

Chichester

Hastings

Bedford

Colchester

Harlow

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 £215

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 20/7. 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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Air Canada flights from Maine to London

Our best Air Canada deals on Maine to London flight tickets

British Airways flights from Maine to London

Our best British Airways 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

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

Fastest flight time

Direct flights

Airports in London

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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Popular flights according to clicks in the last 7 days on momondo

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