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

JetBlue, American Airlines, and United Airlines are the most popular carriers operating from Maine to London

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 16h 20m. 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 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.

£242 Cheap Flights from Maine to London in 2026/27

Find the cheapest flights from Maine to London

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05:35 - 10:05PWM Portland-LHR London Heathrow

23h 30m2 stops Newark Brussels Bruxelles-National

09:00 - 23:21LHR London Heathrow-PWM Portland

43h 21m2 stops Halifax Intl Newark

£555United Airlines

Mon, 16 Nov - Wed, 18 Nov

14:05 - 10:50PWM Portland-LHR London Heathrow

15h 45m1 stop Washington, D.C. Dulles Intl

09:00 - 23:21LHR London Heathrow-PWM Portland

19h 21m2 stops Zurich Newark

£555United Airlines

Mon, 16 Nov - Wed, 18 Nov

08:49 - 07:10PWM Portland-LHR London Heathrow

41h 21m2 stops Newark Montreal Pierre Elliott Trudeau Intl

06:50 - 23:21LHR London Heathrow-PWM Portland

21h 31m2 stops Brussels Bruxelles-National Newark

£558United Airlines

Mon, 9 Nov - Thu, 12 Nov

11:00 - 10:25BGR Bangor-LHR London Heathrow

18h 25m1 stop Newark

09:00 - 10:19LHR London Heathrow-BGR Bangor

30h 19m2 stops Zurich Newark

£559United Airlines

Mon, 16 Nov - Wed, 18 Nov

17:08 - 07:55PWM Portland-LHR London Heathrow

33h 47m1 stop Chicago O'Hare Intl

06:50 - 23:21LHR London Heathrow-PWM Portland

21h 31m2 stops Brussels Bruxelles-National Newark

£560United Airlines

Sun, 1 Nov - Wed, 4 Nov

11:00 - 08:25BGR Bangor-LHR London Heathrow

16h 25m1 stop Newark

06:50 - 10:19LHR London Heathrow-BGR Bangor

32h 29m2 stops Brussels Bruxelles-National Newark

£560United Airlines

Mon, 16 Nov - Wed, 18 Nov

05:35 - 10:05PWM Portland-LHR London Heathrow

23h 30m2 stops Newark Brussels Bruxelles-National

09:00 - 23:21LHR London Heathrow-PWM Portland

43h 21m2 stops Halifax Intl Newark

£561United Airlines

Mon, 16 Nov - Wed, 18 Nov

14:05 - 10:50PWM Portland-LHR London Heathrow

15h 45m1 stop Washington, D.C. Dulles Intl

09:00 - 23:21LHR London Heathrow-PWM Portland

19h 21m2 stops Zurich Newark

£561United Airlines

Mon, 16 Nov - Wed, 18 Nov

11:00 - 10:50BGR Bangor-LHR London Heathrow

18h 50m2 stops Newark Washington, D.C. Dulles Intl

09:00 - 10:19LHR London Heathrow-BGR Bangor

30h 19m2 stops Zurich Newark

£563United Airlines

Mon, 16 Nov - Wed, 18 Nov

15:41 - 07:10PWM Portland-LHR London Heathrow

34h 29m2 stops Newark Montreal Pierre Elliott Trudeau Intl

06:50 - 19:02LHR London Heathrow-PWM Portland

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

£565United Airlines

Mon, 23 Nov - Thu, 26 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

16:43 - 06:55BGR Bangor-LHR London Heathrow

33h 12m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

06:50 - 21:39LHR London Heathrow-BGR Bangor

19h 49m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

£565United Airlines

Thu, 1 Oct - Sun, 4 Oct

12:42 - 07:10PWM Portland-LHR London Heathrow

13h 28m1 stop Detroit Metropolitan Wayne County

11:45 - 00:10LHR London Heathrow-PWM Portland

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

£651KLM

Tue, 6 Oct - Tue, 20 Oct

06:00 - 06:30PWM Portland-LHR London Heathrow

19h 30m2 stops Newark Ottawa

06:50 - 23:28LHR London Heathrow-PWM Portland

21h 38m2 stops Brussels Bruxelles-National Newark

£658United Airlines

Mon, 5 Oct - Fri, 9 Oct

16:43 - 11:55BGR Bangor-LHR London Heathrow

14h 12m1 stop Chicago O'Hare Intl

06:50 - 21:39LHR London Heathrow-BGR Bangor

19h 49m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

£659United Airlines

Thu, 1 Oct - Sun, 4 Oct

06:00 - 06:45PWM Portland-LHR London Heathrow

19h 45m1 stop Chicago O'Hare Intl

06:50 - 19:24LHR London Heathrow-PWM Portland

17h 34m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

£659United Airlines

Tue, 6 Oct - Sun, 11 Oct

06:00 - 06:30PWM Portland-LHR London Heathrow

19h 30m2 stops Newark Montreal Pierre Elliott Trudeau Intl

06:50 - 23:59LHR London Heathrow-PWM Portland

22h 09m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

£661United Airlines

Tue, 6 Oct - Sun, 11 Oct

14:05 - 10:30PWM Portland-LHR London Heathrow

15h 25m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

08:40 - 00:10LHR London Heathrow-PWM Portland

20h 30m2 stops Amsterdam Schiphol New York John F Kennedy Intl

£662Delta

Fri, 2 Oct - Tue, 6 Oct

14:09 - 07:15PWM Portland-LHR London Heathrow

12h 06m1 stop Atlanta Hartsfield-Jackson

11:15 - 23:35LHR London Heathrow-PWM Portland

17h 20m1 stop Atlanta Hartsfield-Jackson

£664Virgin Atlantic

Tue, 6 Oct - Tue, 20 Oct

06:00 - 06:45PWM Portland-LHR London Heathrow

19h 45m1 stop Chicago O'Hare Intl

07:30 - 20:22LHR London Heathrow-PWM Portland

17h 52m2 stops Frankfurt am Main Newark

£667United Airlines

Sun, 4 Oct - Tue, 20 Oct

06:00 - 20:40PWM Portland-LHR London Heathrow

9h 40m1 stop Newark

11:05 - 21:54LHR London Heathrow-PWM Portland

15h 49m1 stop Chicago O'Hare Intl

£673United Airlines

Sun, 4 Oct - Tue, 20 Oct

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JetBlue flights from Maine to London

Our best JetBlue deals on Maine to London flight tickets

JetBlue

26 Oct

PWM06:30Portland

11h 10m

1 stop

LHR21:40London Heathrow

2 Nov

LHR08:05London Heathrow

20h 38m

1 stop

PWM23:43Portland

£641

JetBlue

10 Nov

PWM06:30Portland

10h 10m

1 stop

LHR21:40London Heathrow

17 Nov

LHR12:20London Heathrow

16h 23m

1 stop

PWM23:43Portland

£658

JetBlue

11 Oct

PWM06:00Portland

9h 45m

1 stop

LHR20:45London Heathrow

19 Oct

LHR11:55London Heathrow

16h 59m

1 stop

PWM23:54Portland

£747

KLM flights from Maine to London

Our best KLM deals on Maine to London flight tickets

KLM

11 Nov

BGR15:45Bangor

11h 20m

1 stop

LHR08:05London Heathrow

18 Nov

LHR17:50London Heathrow

26h 15m

2 stops

BGR15:05Bangor

£646

KLM

6 Oct

PWM12:42Portland

13h 28m

1 stop

LHR07:10London Heathrow

20 Oct

LHR11:45London Heathrow

17h 25m

2 stops

PWM00:10Portland

£651

KLM

7 Oct

PWM14:09Portland

18h 06m

1 stop

LHR13:15London Heathrow

12 Oct

LHR11:45London Heathrow

17h 25m

2 stops

PWM00:10Portland

£787

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 16/11

05:35-10:05

2 stops23h 30m

London Heathrow

Wed 18/11

09:00-23:21

2 stops43h 21m

£555

Fastest return journey

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 16/11

14:05-10:50

1 stop15h 45m

London Heathrow

Wed 18/11

09:00-23:21

2 stops19h 21m

£555

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 9/11

08:49-07:10

2 stops41h 21m

London Heathrow

Thu 12/11

06:50-23:21

2 stops21h 31m

£558

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Mon 16/11

11:00-10:25

1 stop18h 25m

London Heathrow

Wed 18/11

09:00-10:19

2 stops30h 19m

£559

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Sun 1/11

17:08-07:55

1 stop33h 47m

London Heathrow

Wed 4/11

06:50-23:21

2 stops21h 31m

£560

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Mon 16/11

11:00-08:25

1 stop16h 25m

London Heathrow

Wed 18/11

06:50-10:19

2 stops32h 29m

£560

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 16/11

05:35-10:05

2 stops23h 30m

London Heathrow

Wed 18/11

09:00-23:21

2 stops43h 21m

£561

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 16/11

14:05-10:50

1 stop15h 45m

London Heathrow

Wed 18/11

09:00-23:21

2 stops19h 21m

£561

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Mon 16/11

11:00-10:50

2 stops18h 50m

London Heathrow

Wed 18/11

09:00-10:19

2 stops30h 19m

£563

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 23/11

15:41-07:10

2 stops34h 29m

London Heathrow

Thu 26/11

06:50-19:02

2 stops17h 12m

£565

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 £528.

Can stopping save me money on Maine to London flights?

You could potentially save up to 38% 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

Best price found	£242
Fastest flight time	6h 30m
Direct flights	None

The best one-way flight to London from Maine in the past 72 hours is £242. The best return flight deal from Maine to London found on momondo in the last 72 hours is £555.

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

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

Search flight deals

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 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

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Colchester

Guildford

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 £242

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 10/10. 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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JetBlue flights from Maine to London

Our best JetBlue deals on Maine to London flight tickets

KLM flights from Maine to London

Our best KLM 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 long does it take to fly to London?

Cheap Maine to London flight deals and tips

Best price found

Fastest flight time

Direct flights

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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