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

JetBlue, Virgin Atlantic, and Lufthansa are the most popular carriers operating from Maine to London

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

234 flights are operational weekly from Maine to London as of August 2025. The most popular departure day for this route is Tue, with 16% 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 10h 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 many operators does momondo search for flights from Maine to London?

The number of operators available for flights from Maine to London is 7 as of August 2025.

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.

£128 Cheap Flights from Maine to London in 2025

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Maine to London

Round-trip

One-way

Last minute

Direct

Cheap return flights

20:02 - 11:25BOS-LHR

10h 23m1 stop

08:40 - 15:25LHR-BOS

11h 45m1 stop

£260

Find Deal

Wed, 10 Sep - Fri, 12 Sep

18:30 - 10:10BOS-LHR

10h 40m1 stop

08:40 - 15:25LHR-BOS

11h 45m1 stop

£261Lufthansa

Find Deal

Tue, 9 Sep - Thu, 11 Sep

19:40 - 07:20BOS-LHR

6h 40mdirect

10:50 - 19:50LHR-BOS

14h 00m1 stop

£273British Airways

Find Deal

Wed, 1 Oct - Thu, 2 Oct

18:30 - 09:35BOS-LHR

10h 05m1 stop

09:30 - 14:30LHR-BOS

10h 00m1 stop

£274Air Canada

Find Deal

Mon, 8 Sep - Wed, 10 Sep

20:10 - 07:50BOS-LHR

6h 40mdirect

20:50 - 21:15LHR-BOS

29h 25m1 stop

£275Iberia

Find Deal

Mon, 1 Sep - Tue, 2 Sep

12:15 - 09:35BOS-LHR

16h 20m2 stops

06:50 - 14:30LHR-BOS

12h 40m2 stops

£276Air Canada

Find Deal

Mon, 22 Sep - Wed, 24 Sep

20:05 - 07:50BOS-LHR

6h 45mdirect

18:45 - 19:50LHR-BOS

30h 05m1 stop

£278Iberia

Find Deal

Wed, 3 Sep - Thu, 4 Sep

19:40 - 07:20BOS-LHR

6h 40mdirect

06:15 - 15:00LHR-BOS

13h 45m1 stop

£280British Airways

Find Deal

Mon, 22 Sep - Wed, 24 Sep

18:30 - 09:35BOS-LHR

10h 05m1 stop

08:40 - 15:25LHR-BOS

11h 45m1 stop

£290United Airlines

Find Deal

Tue, 14 Oct - Thu, 16 Oct

19:12 - 10:40BOS-LHR

10h 28m1 stop

08:40 - 15:25LHR-BOS

11h 45m1 stop

£293United Airlines

Find Deal

Wed, 3 Sep - Fri, 5 Sep

Virgin Atlantic flights from Maine to London

Our best Virgin Atlantic deals on Maine to London flight tickets

Virgin Atlantic

10 Sept

BOS22:45Boston Logan Intl

6h 45m

LHR10:30London Heathrow

12 Sept

LHR09:55London Heathrow

13h 30m

1 stop

BOS18:25Boston Logan Intl

£315

Find similar

Virgin Atlantic

11 Aug

BOS20:15Boston Logan Intl

6h 50m

LHR08:05London Heathrow

20 Aug

LHR16:05London Heathrow

11h 54m

1 stop

BOS22:59Boston Logan Intl

£326

Find similar

Virgin Atlantic

11 Aug

BOS22:45Boston Logan Intl

6h 45m

LHR10:30London Heathrow

20 Aug

LHR18:15London Heathrow

7h 45m

BOS21:00Boston Logan Intl

£328

Find similar

Delta flights from Maine to London

Our best Delta deals on Maine to London flight tickets

Delta

21 Aug

BOS20:15Boston Logan Intl

6h 50m

LHR08:05London Heathrow

2 Sept

LHR09:55London Heathrow

11h 35m

1 stop

BOS16:30Boston Logan Intl

£378

Find similar

Delta

21 Aug

BOS09:59Boston Logan Intl

19h 16m

1 stop

LHR10:15London Heathrow

26 Aug

LHR06:30London Heathrow

16h 55m

1 stop

BOS18:25Boston Logan Intl

£382

Find similar

Delta

11 Aug

BOS22:45Boston Logan Intl

6h 45m

LHR10:30London Heathrow

20 Aug

LHR18:15London Heathrow

7h 45m

BOS21:00Boston Logan Intl

£383

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/9

20:02-11:25

1 stop10h 23m

London Heathrow

Fri 12/9

08:40-15:25

1 stop11h 45m

£260

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 9/9

18:30-10:10

1 stop10h 40m

London Heathrow

Thu 11/9

08:40-15:25

1 stop11h 45m

£261

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 1/10

19:40-07:20

Nonstop6h 40m

London Heathrow

Thu 2/10

10:50-19:50

1 stop14h 00m

£273

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 8/9

18:30-09:35

1 stop10h 05m

London Heathrow

Wed 10/9

09:30-14:30

1 stop10h 00m

£274

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 1/9

20:10-07:50

Nonstop6h 40m

London Heathrow

Tue 2/9

20:50-21:15

1 stop29h 25m

£275

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 22/9

12:15-09:35

2 stops16h 20m

London Heathrow

Wed 24/9

06:50-14:30

2 stops12h 40m

£276

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 3/9

20:05-07:50

Nonstop6h 45m

London Heathrow

Thu 4/9

18:45-19:50

1 stop30h 05m

£278

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 22/9

19:40-07:20

Nonstop6h 40m

London Heathrow

Wed 24/9

06:15-15:00

1 stop13h 45m

£280

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 14/10

18:30-09:35

1 stop10h 05m

London Heathrow

Thu 16/10

08:40-15:25

1 stop11h 45m

£290

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 3/9

19:12-10:40

1 stop10h 28m

London Heathrow

Fri 5/9

08:40-15:25

1 stop11h 45m

£293

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 £476, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Maine averaging around £544.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £528. Flights in the morning are often more expensive, with an average ticket price of £558.

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	£128
Fastest flight time	6h 30m
Direct flights	Every day
Airports in London	5 airports

The best one-way flight to London from Maine in the past 72 hours is £128. The best return flight deal from Maine to London found on momondo in the last 72 hours is £260.

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

Direct flights go from Maine to London every day.

There are 5 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW)

Search flight deals

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 7 as of August 2025.
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

Milton Keynes

Luton

Slough

Maidstone

Southend-on-Sea

Canterbury

Gatwick

Ipswich

Ilford

Guildford

Colchester

Dartford

Hounslow

Worthing

Dover

Chelmsford

Hayes

Winchester

Bedford

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.