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

On average, it takes 9h 45m to fly from Maine to London Heathrow Airport if you fly out of Portland (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 Bangor and into London Heathrow Airport, then the flight time is around 9h 50m.

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

JetBlue, United Airlines, and Air Canada are the most popular carriers operating from Maine to London Heathrow

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 2 operators available for flights from Maine to London Heathrow Airport as of November 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.

$301 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

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11:25 am - 8:05 amBGR Bangor-LHR London Heathrow

39h 40m2 stops Newark Zurich

6:50 am - 10:44 amLHR London Heathrow-BGR Bangor

32h 54m2 stops Brussels Bruxelles-National Newark

$770United Airlines

Mon, Feb 15 - Thu, Feb 18

8:49 am - 9:10 amPWM Portland-LHR London Heathrow

19h 21m1 stop Newark

6:50 am - 11:21 pmLHR London Heathrow-PWM Portland

21h 31m2 stops Brussels Bruxelles-National Newark

$771United Airlines

Mon, Nov 16 - Wed, Nov 18

5:08 pm - 7:55 amPWM Portland-LHR London Heathrow

33h 47m1 stop Chicago O'Hare Intl

6:50 am - 7:02 pmLHR London Heathrow-PWM Portland

17h 12m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

$777United Airlines

Sun, Nov 15 - Wed, Nov 18

5:08 pm - 7:55 amPWM Portland-LHR London Heathrow

33h 47m1 stop Chicago O'Hare Intl

6:50 am - 11:21 pmLHR London Heathrow-PWM Portland

21h 31m2 stops Brussels Bruxelles-National Newark

$777United Airlines

Sun, Nov 15 - Wed, Nov 18

6:30 am - 9:30 amPWM Portland-LHR London Heathrow

22h 00m1 stop New York John F Kennedy Intl

12:20 pm - 11:43 pmLHR London Heathrow-PWM Portland

16h 23m1 stop New York John F Kennedy Intl

$781JetBlue

Sun, Nov 15 - Wed, Nov 18

6:30 am - 9:30 amPWM Portland-LHR London Heathrow

22h 00m1 stop New York John F Kennedy Intl

7:25 am - 11:43 pmLHR London Heathrow-PWM Portland

21h 18m1 stop New York John F Kennedy Intl

$781JetBlue

Sun, Nov 15 - Wed, Nov 18

6:30 am - 9:40 pmPWM Portland-LHR London Heathrow

10h 10m1 stop New York John F Kennedy Intl

12:20 pm - 11:43 pmLHR London Heathrow-PWM Portland

16h 23m1 stop New York John F Kennedy Intl

$834JetBlue

Mon, Nov 16 - Wed, Nov 18

12:45 pm - 7:45 amPWM Portland-LHR London Heathrow

14h 00m1 stop Detroit Metropolitan Wayne County

8:40 am - 11:52 pmLHR London Heathrow-PWM Portland

20h 12m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$875Delta

Fri, Nov 27 - Fri, Dec 4

6:00 am - 6:35 amBGR Bangor-LHR London Heathrow

19h 35m1 stop Philadelphia

10:35 am - 5:49 pmLHR London Heathrow-BGR Bangor

12h 14m1 stop Philadelphia

$906American Airlines

Mon, Dec 7 - Mon, Dec 14

7:00 am - 6:35 amBGR Bangor-LHR London Heathrow

18h 35m1 stop Philadelphia

1:10 pm - 10:59 pmLHR London Heathrow-BGR Bangor

14h 49m1 stop Philadelphia

$922American Airlines

Fri, Feb 12 - Wed, Feb 17

Cheap last minute flights

Enter your travel dates to find the best prices.

11:07 am - 6:35 amPWM Portland-LHR London Heathrow

14h 28m1 stop Philadelphia

3:40 pm - 11:53 amLHR London Heathrow-PWM Portland

25h 13m1 stop Chicago O'Hare Intl

$919Multiple Airlines

Thu, Nov 5 - Sun, Nov 15

6:01 am - 7:50 amPWM Portland-LHR London Heathrow

20h 49m1 stop Atlanta Hartsfield-Jackson

6:20 am - 9:00 pmLHR London Heathrow-PWM Portland

19h 40m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$1,016Virgin Atlantic

Wed, Nov 4 - Fri, Nov 6

12:42 pm - 10:30 amPWM Portland-LHR London Heathrow

16h 48m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

11:45 am - 12:10 amLHR London Heathrow-PWM Portland

17h 25m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$1,033Delta

Wed, Nov 4 - Fri, Nov 6

12:42 pm - 7:45 amPWM Portland-LHR London Heathrow

14h 03m1 stop Detroit Metropolitan Wayne County

4:35 pm - 12:10 amLHR London Heathrow-PWM Portland

12h 35m1 stop New York John F Kennedy Intl

$1,058KLM

Wed, Nov 4 - Fri, Nov 6

5:08 pm - 12:00 pmPWM Portland-LHR London Heathrow

13h 52m1 stop Chicago O'Hare Intl

7:40 am - 9:51 pmLHR London Heathrow-PWM Portland

19h 11m1 stop Chicago O'Hare Intl

$2,283Brussels Airlines

Mon, Nov 9 - Sun, Nov 15

11:00 am - 6:20 amBGR Bangor-LHR London Heathrow

14h 20m1 stop Newark

6:00 pm - 10:19 amLHR London Heathrow-BGR Bangor

21h 19m1 stop Newark

$2,283SWISS

Tue, Nov 10 - Mon, Nov 16

11:00 am - 6:20 amBGR Bangor-LHR London Heathrow

14h 20m1 stop Newark

6:00 pm - 10:19 amLHR London Heathrow-BGR Bangor

21h 19m1 stop Newark

$2,283SWISS

Tue, Nov 10 - Wed, Nov 18

9:46 am - 6:40 amPWM Portland-LHR London Heathrow

15h 54m1 stop Washington, D.C. Dulles Intl

7:40 am - 9:48 pmLHR London Heathrow-PWM Portland

19h 08m1 stop Chicago O'Hare Intl

$2,283Multiple Airlines

Mon, Nov 9 - Sat, Nov 14

11:00 am - 9:20 pmBGR Bangor-LHR London Heathrow

29h 20m1 stop Newark

6:00 pm - 10:19 amLHR London Heathrow-BGR Bangor

45h 19m2 stops Toronto Pearson Intl Newark

$2,300United Airlines

Mon, Nov 9 - Wed, Nov 18

6:00 am - 9:20 pmPWM Portland-LHR London Heathrow

10h 20m1 stop Newark

10:25 am - 9:51 pmLHR London Heathrow-PWM Portland

16h 26m1 stop Chicago O'Hare Intl

$2,303United Airlines

Sat, Nov 7 - Thu, Nov 12

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United Airlines flights from Maine to London Heathrow Airport

Our best United Airlines deals on Maine to London Heathrow Airport flight tickets

United Airlines

Feb 15

BGR11:25 amBangor

39h 40m

2 stops

LHR8:05 amLondon Heathrow

Feb 18

LHR6:50 amLondon Heathrow

32h 54m

2 stops

BGR10:44 amBangor

$770

United Airlines

Nov 16

PWM8:49 amPortland

19h 21m

1 stop

LHR9:10 amLondon Heathrow

Nov 18

LHR6:50 amLondon Heathrow

21h 31m

2 stops

PWM11:21 pmPortland

$771

United Airlines

Nov 15

PWM5:08 pmPortland

33h 47m

1 stop

LHR7:55 amLondon Heathrow

Nov 18

LHR6:50 amLondon Heathrow

21h 31m

2 stops

PWM11:21 pmPortland

$777

JetBlue flights from Maine to London Heathrow Airport

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

JetBlue

Nov 12

PWM6:30 amPortland

10h 10m

1 stop

LHR9:40 pmLondon Heathrow

Nov 18

LHR12:20 pmLondon Heathrow

16h 23m

1 stop

PWM11:43 pmPortland

$775

JetBlue

Nov 12

PWM6:30 amPortland

10h 10m

1 stop

LHR9:40 pmLondon Heathrow

Nov 18

LHR7:25 amLondon Heathrow

21h 18m

1 stop

PWM11:43 pmPortland

$776

JetBlue

Nov 15

PWM6:30 amPortland

22h 00m

1 stop

LHR9:30 amLondon Heathrow

Nov 18

LHR7:25 amLondon Heathrow

21h 18m

1 stop

PWM11:43 pmPortland

$781

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

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Mon 2/15

11:25 am-8:05 am

2 stops39h 40m

London Heathrow

Thu 2/18

6:50 am-10:44 am

2 stops32h 54m

$770

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 11/16

8:49 am-9:10 am

1 stop19h 21m

London Heathrow

Wed 11/18

6:50 am-11:21 pm

2 stops21h 31m

$771

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Sun 11/15

5:08 pm-7:55 am

1 stop33h 47m

London Heathrow

Wed 11/18

6:50 am-7:02 pm

2 stops17h 12m

$777

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Sun 11/15

5:08 pm-7:55 am

1 stop33h 47m

London Heathrow

Wed 11/18

6:50 am-11:21 pm

2 stops21h 31m

$777

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Sun 11/15

6:30 am-9:30 am

1 stop22h 00m

London Heathrow

Wed 11/18

12:20 pm-11:43 pm

1 stop16h 23m

$781

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Sun 11/15

6:30 am-9:30 am

1 stop22h 00m

London Heathrow

Wed 11/18

7:25 am-11:43 pm

1 stop21h 18m

$781

Quickest round-trip

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 11/16

6:30 am-9:40 pm

1 stop10h 10m

London Heathrow

Wed 11/18

12:20 pm-11:43 pm

1 stop16h 23m

$834

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Fri 11/27

12:45 pm-7:45 am

1 stop14h 00m

London Heathrow

Fri 12/4

8:40 am-11:52 pm

2 stops20h 12m

$875

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Mon 12/7

6:00 am-6:35 am

1 stop19h 35m

London Heathrow

Mon 12/14

10:35 am-5:49 pm

1 stop12h 14m

$906

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Fri 2/12

7:00 am-6:35 am

1 stop18h 35m

London Heathrow

Wed 2/17

1:10 pm-10:59 pm

1 stop14h 49m

$922

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 January 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 January, then March is your next best option. Flight prices from Maine to London Heathrow Airport during March average around $654.

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	$301
Fastest flight time	6h 30m
Direct flights	None

The best one-way flight to London Heathrow Airport from Maine in the past 72 hours is $301. The best round-trip flight deal from Maine to London Heathrow Airport found on momondo in the last 72 hours is $770.

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

There are no direct flights from Maine to London Heathrow Airport. There are no popular flight routes from Maine to London Heathrow Airport.

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 2 operators available for flights from Maine to London Heathrow Airport as of November 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
United Airlines	PriceFrom $752	Free Cancellation	Rating 7.3 10,461 reviews		Search United Airlines flights
American Airlines	PriceFrom $757	Free Cancellation	Rating 7.0 12,231 reviews		Search American Airlines flights

Hounslow

Gatwick

Croydon

Hayes

Milton Keynes

Luton

Stansted

Kingston upon Thames

Watford

Stratford-upon-Avon

Richmond

Dover

Wembley

Crawley

Worthing

Harrow

Brentford

Canterbury

Hook

Dunstable

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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Flights to London Gatwick Airportfrom $492

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Flights to London City Airportfrom $494

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Flights to Glasgow Intl Airportfrom $550

Flights to Belfast City Airportfrom $659

Flights to Belfast Intl Airportfrom $660

Flights to London Southend Airportfrom $611

Cheap flights from Maine to London from $301

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 11/15. 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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United Airlines flights from Maine to London Heathrow Airport

Our best United Airlines deals on Maine to London Heathrow Airport flight tickets

JetBlue flights from Maine to London Heathrow Airport

Our best JetBlue 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 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

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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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