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

Virgin Atlantic, British Airways, and United Airlines are the most popular carriers operating from Maine to London Heathrow

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 207 per week as of September 2026. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.

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

On average, it takes 10h 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 11h 35m.

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 September 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.

$285 Cheap Flights from Maine to London Heathrow Airport in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

5:35 pm - 5:40 pmBOS Boston Logan Intl-LHR London Heathrow

19h 05m1 stop Kastrup Copenhagen

6:40 am - 3:45 pmLHR London Heathrow-BOS Boston Logan Intl

14h 05m1 stop Kastrup Copenhagen

$678Scandinavian Airlines

Sat, Nov 28 - Tue, Dec 1

5:50 pm - 2:35 pmBOS Boston Logan Intl-LHR London Heathrow

15h 45m2 stops Kastrup Copenhagen Oslo Gardermoen

3:35 pm - 4:45 pmLHR London Heathrow-BOS Boston Logan Intl

29h 10m2 stops Oslo Gardermoen Kastrup Copenhagen

$678Scandinavian Airlines

Fri, Oct 23 - Sat, Oct 31

8:00 pm - 1:25 pmBOS Boston Logan Intl-LHR London Heathrow

12h 25m1 stop Madrid Barajas

11:25 am - 6:25 pmLHR London Heathrow-BOS Boston Logan Intl

12h 00m1 stop Madrid Barajas

$678Iberia

Wed, Nov 25 - Wed, Dec 2

10:25 am - 7:10 amBOS Boston Logan Intl-LHR London Heathrow

15h 45m1 stop Montreal Pierre Elliott Trudeau Intl

9:00 am - 9:28 pmLHR London Heathrow-BOS Boston Logan Intl

17h 28m2 stops Halifax Intl Montreal Pierre Elliott Trudeau Intl

$678Air Canada

Wed, Dec 2 - Fri, Dec 11

3:35 pm - 10:00 amBOS Boston Logan Intl-LHR London Heathrow

13h 25m1 stop Montreal Pierre Elliott Trudeau Intl

2:05 pm - 9:26 pmLHR London Heathrow-BOS Boston Logan Intl

12h 21m1 stop Montreal Pierre Elliott Trudeau Intl

$678Air Canada

Wed, Oct 7 - Thu, Oct 15

10:11 pm - 9:55 amBOS Boston Logan Intl-LHR London Heathrow

6h 44mnonstop

9:40 am - 12:20 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$678Virgin Atlantic

Wed, Feb 17 - Wed, Feb 24

6:50 pm - 9:15 amBOS Boston Logan Intl-LHR London Heathrow

9h 25m1 stop Shannon

8:35 pm - 9:45 pmLHR London Heathrow-BOS Boston Logan Intl

29h 10m1 stop Reykjavik Keflavik Intl

$678Multiple Airlines

Sat, Mar 13 - Sun, Mar 21

5:15 pm - 10:10 amBOS Boston Logan Intl-LHR London Heathrow

11h 55m1 stop Dublin

12:15 pm - 5:50 pmLHR London Heathrow-BOS Boston Logan Intl

10h 35m1 stop Reykjavik Keflavik Intl

$678Multiple Airlines

Thu, Nov 19 - Wed, Dec 2

6:35 pm - 6:15 amBOS Boston Logan Intl-LHR London Heathrow

6h 40mnonstop

3:00 pm - 6:25 pmLHR London Heathrow-BOS Boston Logan Intl

32h 25m1 stop Madrid Barajas

$679Iberia

Wed, Nov 25 - Mon, Nov 30

8:15 pm - 6:50 amBOS Boston Logan Intl-LHR London Heathrow

6h 35mnonstop

7:20 pm - 4:05 pmLHR London Heathrow-BOS Boston Logan Intl

25h 45m1 stop Paris Charles de Gaulle

$690Virgin Atlantic

Wed, Oct 28 - Mon, Nov 2

Cheap last minute flights

Enter your travel dates to find the best prices.

5:50 am - 8:35 amBOS Boston Logan Intl-LHR London Heathrow

21h 45m2 stops Montreal Pierre Elliott Trudeau Intl Ottawa

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

15h 35m1 stop Toronto Pearson Intl

$682Air Canada

Wed, Sep 23 - Wed, Sep 30

12:41 pm - 7:15 amBOS Boston Logan Intl-LHR London Heathrow

13h 34m1 stop Newark

9:30 am - 6:14 pmLHR London Heathrow-BOS Boston Logan Intl

13h 44m2 stops Ottawa Toronto Pearson Intl

$684United Airlines

Tue, Sep 22 - Thu, Oct 1

5:10 pm - 7:55 amBOS Boston Logan Intl-LHR London Heathrow

9h 45m1 stop Paris Charles de Gaulle

8:40 am - 2:23 pmLHR London Heathrow-BOS Boston Logan Intl

10h 43m1 stop Amsterdam Schiphol

$684Multiple Airlines

Wed, Sep 23 - Tue, Jan 26

3:35 pm - 6:30 amBOS Boston Logan Intl-LHR London Heathrow

9h 55m1 stop Montreal Pierre Elliott Trudeau Intl

8:30 am - 9:26 pmLHR London Heathrow-BOS Boston Logan Intl

17h 56m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$686Air Canada

Tue, Sep 22 - Wed, Sep 30

5:10 pm - 9:40 pmBOS Boston Logan Intl-LHR London Heathrow

23h 30m1 stop Vienna Intl

7:30 pm - 1:50 pmLHR London Heathrow-BOS Boston Logan Intl

23h 20m1 stop Vienna Intl

$688Austrian Airlines

Tue, Sep 22 - Mon, Sep 28

8:05 pm - 8:00 amBOS Boston Logan Intl-LHR London Heathrow

6h 55mnonstop

9:15 am - 4:10 pmLHR London Heathrow-BOS Boston Logan Intl

11h 55m1 stop Madrid Barajas

$688Iberia

Fri, Sep 25 - Tue, Oct 6

8:05 pm - 8:00 amBOS Boston Logan Intl-LHR London Heathrow

6h 55mnonstop

9:15 am - 4:10 pmLHR London Heathrow-BOS Boston Logan Intl

11h 55m1 stop Madrid Barajas

$688Iberia

Thu, Sep 24 - Tue, Sep 29

5:25 pm - 8:05 amBOS Boston Logan Intl-LHR London Heathrow

9h 40m1 stop Dublin

8:50 am - 2:55 pmLHR London Heathrow-BOS Boston Logan Intl

11h 05m1 stop Dublin

$691Aer Lingus

Fri, Sep 25 - Tue, Sep 29

5:25 pm - 8:05 amBOS Boston Logan Intl-LHR London Heathrow

9h 40m1 stop Dublin

8:50 am - 2:55 pmLHR London Heathrow-BOS Boston Logan Intl

11h 05m1 stop Dublin

$694Aer Lingus

Sat, Sep 26 - Wed, Sep 30

6:00 am - 8:40 pmBOS Boston Logan Intl-LHR London Heathrow

9h 40m1 stop Newark

8:45 am - 3:10 pmLHR London Heathrow-BOS Boston Logan Intl

11h 25m1 stop Zurich

$705United Airlines

Thu, Sep 24 - Thu, Oct 8

Cheap direct flights

Enter your travel dates to find the best prices.

10:11 pm - 9:55 amBOS Boston Logan Intl-LHR London Heathrow

6h 44mnonstop

9:40 am - 12:20 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$678Virgin Atlantic

Wed, Feb 17 - Wed, Feb 24

7:15 pm - 7:00 amBOS Boston Logan Intl-LHR London Heathrow

6h 45mnonstop

5:00 pm - 7:40 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$679Finnair

Tue, Dec 15 - Tue, Dec 22

10:30 pm - 9:15 amBOS Boston Logan Intl-LHR London Heathrow

6h 45mnonstop

5:00 pm - 8:40 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$679British Airways

Mon, Mar 15 - Wed, Mar 24

6:45 pm - 6:25 amBOS Boston Logan Intl-LHR London Heathrow

6h 40mnonstop

7:10 pm - 9:50 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$679British Airways

Tue, Nov 10 - Tue, Nov 17

10:11 pm - 9:55 amBOS Boston Logan Intl-LHR London Heathrow

6h 44mnonstop

9:40 am - 12:27 pmLHR London Heathrow-BOS Boston Logan Intl

7h 47mnonstop

$680Delta

Mon, Jan 4 - Tue, Jan 19

10:11 pm - 9:55 amBOS Boston Logan Intl-LHR London Heathrow

6h 44mnonstop

6:00 pm - 8:40 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$680Delta

Mon, Mar 1 - Wed, Mar 31

7:30 am - 7:00 pmBOS Boston Logan Intl-LHR London Heathrow

6h 30mnonstop

5:00 pm - 7:40 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$680Iberia

Wed, Dec 16 - Wed, Dec 23

7:15 pm - 7:00 amBOS Boston Logan Intl-LHR London Heathrow

6h 45mnonstop

1:10 pm - 4:00 pmLHR London Heathrow-BOS Boston Logan Intl

7h 50mnonstop

$680Iberia

Mon, Dec 28 - Tue, Jan 12

7:30 am - 7:00 pmBOS Boston Logan Intl-LHR London Heathrow

6h 30mnonstop

5:00 pm - 7:40 pmLHR London Heathrow-BOS Boston Logan Intl

7h 40mnonstop

$680Finnair

Tue, Dec 15 - Tue, Dec 22

10:11 pm - 9:55 amBOS Boston Logan Intl-LHR London Heathrow

6h 44mnonstop

5:20 pm - 8:15 pmLHR London Heathrow-BOS Boston Logan Intl

7h 55mnonstop

$690Virgin Atlantic

Thu, Nov 5 - Tue, Nov 17

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Iberia flights from Maine to London Heathrow Airport

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

Iberia

Nov 6

BOS7:15 pmBoston Logan Intl

6h 45m

LHR7:00 amLondon Heathrow

Nov 10

LHR11:25 amLondon Heathrow

11h 35m

1 stop

BOS6:00 pmBoston Logan Intl

$688

Iberia

Sep 29

BOS5:40 pmBoston Logan Intl

10h 50m

1 stop

LHR9:30 amLondon Heathrow

Oct 10

LHR12:20 pmLondon Heathrow

12h 30m

1 stop

BOS7:50 pmBoston Logan Intl

$697

SWISS flights from Maine to London Heathrow Airport

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

SWISS

Sep 25

BOS9:40 pmBoston Logan Intl

19h 05m

1 stop

LHR9:45 pmLondon Heathrow

Sep 30

LHR8:55 amLondon Heathrow

16h 00m

2 stops

BOS7:55 pmBoston Logan Intl

$704

SWISS

Oct 29

BOS10:50 pmBoston Logan Intl

13h 30m

1 stop

LHR4:20 pmLondon Heathrow

Nov 8

LHR12:05 pmLondon Heathrow

13h 15m

1 stop

BOS8:20 pmBoston Logan Intl

$714

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 Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sat 11/28

5:35 pm-5:40 pm

1 stop19h 05m

London Heathrow

Tue 12/1

6:40 am-3:45 pm

1 stop14h 05m

$678

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Fri 10/23

5:50 pm-2:35 pm

2 stops15h 45m

London Heathrow

Sat 10/31

3:35 pm-4:45 pm

2 stops29h 10m

$678

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 11/25

8:00 pm-1:25 pm

1 stop12h 25m

London Heathrow

Wed 12/2

11:25 am-6:25 pm

1 stop12h 00m

$678

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 12/2

10:25 am-7:10 am

1 stop15h 45m

London Heathrow

Fri 12/11

9:00 am-9:28 pm

2 stops17h 28m

$678

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 10/7

3:35 pm-10:00 am

1 stop13h 25m

London Heathrow

Thu 10/15

2:05 pm-9:26 pm

1 stop12h 21m

$678

Quickest round-trip

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 2/17

10:11 pm-9:55 am

Nonstop6h 44m

London Heathrow

Wed 2/24

9:40 am-12:20 pm

Nonstop7h 40m

$678

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sat 3/13

6:50 pm-9:15 am

1 stop9h 25m

London Heathrow

Sun 3/21

8:35 pm-9:45 pm

1 stop29h 10m

$678

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 11/19

5:15 pm-10:10 am

1 stop11h 55m

London Heathrow

Wed 12/2

12:15 pm-5:50 pm

1 stop10h 35m

$678

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 11/25

6:35 pm-6:15 am

Nonstop6h 40m

London Heathrow

Mon 11/30

3:00 pm-6:25 pm

1 stop32h 25m

$679

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 10/28

8:15 pm-6:50 am

Nonstop6h 35m

London Heathrow

Mon 11/2

7:20 pm-4:05 pm

1 stop25h 45m

$690

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

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of December is, on average, the cheapest month to fly to London Heathrow Airport from Maine, with most prices found around $0. If you’re not able to fly to London Heathrow Airport in December, then January is your next best option. Flight prices from Maine to London Heathrow Airport during January average around $0.

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

Best Price Found	$285
Fastest flight time	6h 30m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from Maine in the past 72 hours is $285. The best round-trip flight deal from Maine to London Heathrow Airport found on momondo in the last 72 hours is $678.

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 September 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 7.0 12,077 reviews		Search American Airlines flights

Hounslow

Gatwick

Milton Keynes

Stratford-upon-Avon

Hayes

Luton

Wembley

Dover

Croydon

Richmond

Kingston upon Thames

Stansted

Harrow

Cobham

Watford

Worthing

Slough

Eastbourne

Hook

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

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.

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Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $200

Flights to London Stansted Airportfrom $389

Flights to London City Airportfrom $591

Flights to London Luton Airportfrom $455

Flights to Glasgow Intl Airportfrom $486

Flights to Belfast Intl Airportfrom $624

Flights to London Southend Airportfrom $546

Flights to Belfast City Airportfrom $624

Cheap flights from Maine to London from $285

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 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Maine to London

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Big names and deals

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Iberia flights from Maine to London Heathrow Airport

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

SWISS flights from Maine to London Heathrow Airport

Our best SWISS 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.

See travel insights to London from

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

What is the cheapest month to fly 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

Best Price Found

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

Popular cities in the United Kingdom

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

Maine flight routes

According to popular flight searches on momondo this year

London Heathrow Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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.

Complete your trip to London

Explore popular destinations other users love

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