How long does it take to fly to London Heathrow Airport?

On average, it takes 9h 50m to fly from Maine to London Heathrow Airport if you fly out of Bangor (the most popular airport in Maine) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Portland and into London Heathrow Airport, then the flight time is around 12h 19m.

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

The number of flights available between Maine and London Heathrow Airport is 196 per week as of May 2026. The most frequent departure day is Sun, with 18% of weekly flights leaving on this day.

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

Prices for flights from Maine to London Heathrow Airport are updated daily.

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

There are 16 operators available for flights from Maine to London Heathrow Airport as of May 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to London Heathrow Airport.

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

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$330 Cheap Flights from Maine to London Heathrow Airport in 2026

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Find the cheapest flights from Maine to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:40 pm - 9:20 am

BOS

LHR

10h 40m

1 stop

7:30 pm - 3:35 pm

LHR

BOS

25h 05m

1 stop

$757Scandinavian Airlines

Fri, Aug 21 - Sun, Aug 23

11:00 pm - 9:35 pm

BOS

LHR

17h 35m

2 stops

1:25 pm - 6:50 pm

LHR

BOS

10h 25m

1 stop

$758Multiple Airlines

Sun, Oct 11 - Fri, Oct 16

12:15 pm - 10:05 am

BGR

LHR

16h 50m

2 stops

9:00 am - 11:23 am

LHR

BGR

31h 23m

2 stops

$758United Airlines

Wed, Nov 11 - Fri, Nov 13

5:06 pm - 10:25 am

PWM

LHR

12h 19m

1 stop

6:50 am - 4:09 pm

LHR

PWM

14h 19m

2 stops

$759United Airlines

Wed, Nov 11 - Fri, Nov 13

8:50 pm - 11:55 am

BOS

LHR

10h 05m

1 stop

1:05 pm - 6:50 pm

LHR

BOS

10h 45m

1 stop

$759Icelandair

Sat, Oct 10 - Sat, Oct 17

6:30 am - 9:20 pm

BGR

LHR

9h 50m

1 stop

11:05 am - 5:04 pm

LHR

BGR

34h 59m

2 stops

$759United Airlines

Mon, Nov 9 - Tue, Nov 10

8:50 pm - 11:55 am

BOS

LHR

10h 05m

1 stop

12:15 pm - 5:50 pm

LHR

BOS

10h 35m

1 stop

$760Icelandair

Sun, Oct 18 - Fri, Nov 6

8:50 pm - 11:55 am

BOS

LHR

10h 05m

1 stop

1:05 pm - 6:50 pm

LHR

BOS

10h 45m

1 stop

$761Icelandair

Sat, Oct 3 - Sat, Oct 10

9:40 pm - 4:25 pm

BOS

LHR

13h 45m

1 stop

12:05 pm - 9:20 pm

LHR

BOS

13h 15m

1 stop

$763SWISS

Thu, Oct 8 - Mon, Oct 26

10:55 pm - 9:10 am

BOS

LHR

29h 15m

1 stop

9:55 am - 9:05 pm

LHR

BOS

16h 10m

1 stop

$764LEVEL

Wed, Jul 15 - Wed, Jul 22

Air Canada flights from Maine to London Heathrow Airport

Our best Air Canada deals on Maine to London Heathrow Airport flight tickets

Air Canada

Sep 4

BOS3:35 pmBoston Logan Intl

13h 25m

1 stop

LHR10:00 amLondon Heathrow

Sep 11

LHR8:40 amLondon Heathrow

14h 27m

2 stops

BOS6:07 pmBoston Logan Intl

$765

Air Canada

Aug 27

BOS3:35 pmBoston Logan Intl

13h 25m

1 stop

LHR10:00 amLondon Heathrow

Sep 2

LHR8:40 amLondon Heathrow

17h 47m

2 stops

BOS9:27 pmBoston Logan Intl

$789

Air Canada

Aug 23

BOS9:35 amBoston Logan Intl

15h 55m

2 stops

LHR6:30 amLondon Heathrow

Aug 30

LHR8:45 amLondon Heathrow

14h 22m

2 stops

BOS6:07 pmBoston Logan Intl

$790

Delta flights from Maine to London Heathrow Airport

Our best Delta deals on Maine to London Heathrow Airport flight tickets

Delta

Aug 25

BOS11:10 pmBoston Logan Intl

6h 30m

LHR10:40 amLondon Heathrow

Sep 7

LHR8:40 amLondon Heathrow

12h 55m

1 stop

BOS4:35 pmBoston Logan Intl

$793

Delta

Aug 15

BOS7:10 pmBoston Logan Intl

6h 35m

LHR6:45 amLondon Heathrow

Aug 29

LHR6:15 amLondon Heathrow

13h 40m

1 stop

BOS2:55 pmBoston Logan Intl

$794

Delta

Sep 2

BOS9:05 amBoston Logan Intl

16h 40m

1 stop

LHR6:45 amLondon Heathrow

Sep 4

LHR9:55 amLondon Heathrow

11h 40m

1 stop

BOS4:35 pmBoston Logan Intl

$798

momondo Fare Finder

Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 8/21

5:40 pm-9:20 am

1 stop10h 40m

London Heathrow

Sun 8/23

7:30 pm-3:35 pm

1 stop25h 05m

$757

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 10/11

11:00 pm-9:35 pm

2 stops17h 35m

London Heathrow

Fri 10/16

1:25 pm-6:50 pm

1 stop10h 25m

$758

BangorLondon

BGR - LHR

BGRLHR

Bangor

Wed 11/11

12:15 pm-10:05 am

2 stops16h 50m

London Heathrow

Fri 11/13

9:00 am-11:23 am

2 stops31h 23m

$758

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 11/11

5:06 pm-10:25 am

1 stop12h 19m

London Heathrow

Fri 11/13

6:50 am-4:09 pm

2 stops14h 19m

$759

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/10

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

Sat 10/17

1:05 pm-6:50 pm

1 stop10h 45m

$759

BangorLondon

BGR - LHR

BGRLHR

Bangor

Mon 11/9

6:30 am-9:20 pm

1 stop9h 50m

London Heathrow

Tue 11/10

11:05 am-5:04 pm

2 stops34h 59m

$759

Quickest round-trip

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 10/18

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

Fri 11/6

12:15 pm-5:50 pm

1 stop10h 35m

$760

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/3

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

Sat 10/10

1:05 pm-6:50 pm

1 stop10h 45m

$761

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 10/8

9:40 pm-4:25 pm

1 stop13h 45m

London Heathrow

Mon 10/26

12:05 pm-9:20 pm

1 stop13h 15m

$763

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 7/15

10:55 pm-9:10 am

1 stop29h 15m

London Heathrow

Wed 7/22

9:55 am-9:05 pm

1 stop16h 10m

$764

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Maine to London Heathrow Airport

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

Airlines

Other information

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

KLM, Delta, and United Airlines are the most popular carriers operating from Maine to London Heathrow

Cheap Maine to London Heathrow Airport flight deals and tips

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

Fastest flight time	6h 30m
Direct flights	Every day

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

Direct flights go from Maine to London Heathrow Airport every day.

Search flight deals

Frequently asked questions about flying from Maine to London Heathrow Airport

When did momondo last update prices for flights from Maine to London Heathrow Airport?
Prices for flights from Maine to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from Maine to London Heathrow Airport?
There are 16 operators available for flights from Maine to London Heathrow Airport as of May 2026.
How old do you have to be to fly from Maine to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Maine to London Heathrow Airport

Compare and see reviews for airlines that fly from Maine to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $757	Free Cancellation	Rating 7.1 11,642 reviews		Search American Airlines flights

Hounslow

Gatwick

Milton Keynes

Luton

Dover

Hayes

Crawley

Croydon

Wembley

Stratford-upon-Avon

Slough

Stansted

Harrow

Dartford

Brentwood

Watford

Ilford

Cobham

Folkestone

Uxbridge

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Maine to London for you.

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Maine.

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.

An easier way to manage your London Heathrow Airport trip

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Cheap flights from Maine to London from $330

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 8/22. 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 Heathrow Airport

Our best Air Canada deals on Maine to London Heathrow Airport flight tickets

Delta flights from Maine to London Heathrow Airport

Our best Delta deals on Maine to London Heathrow Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.

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How to get the cheapest flight ticket from Maine to London Heathrow Airport

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

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

How long does it take to fly to London Heathrow Airport?

Cheap Maine to London Heathrow Airport flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Maine to London Heathrow Airport

Best airlines flying from Maine to London Heathrow Airport

Compare and see reviews for airlines that fly from Maine to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize 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 London

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

Maine flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

Fly your favorite airline to London

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

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