What airlines fly to London?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to London from Maine according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London?

If you’re flying from a popular airport in Maine, such as Portland or Bangor, and flying into London, then you can expect flight times to average 9h 35m and 10h 20m, respectively.

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

JetBlue, TAP AIR PORTUGAL, and Virgin Atlantic are the most popular carriers operating from Maine to London

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

The number of flights available between Maine and London is 260 per week as of August 2025. The most frequent departure day is Tue, with 15% of weekly flights leaving on this day.

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

Prices for flights from Maine to London are updated daily.

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

There are 19 operators available for flights from Maine to London 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 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.

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

The necessary travel and health documents for your London 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.

$172 Cheap Flights from Maine to London in 2025

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Find the cheapest flights from Maine to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:02 pm - 11:25 amBOS-LHR

10h 23m1 stop

8:40 am - 3:25 pmLHR-BOS

11h 45m1 stop

$350Lufthansa

Find Deal

Tue, Sep 9 - Thu, Sep 11

6:28 am - 5:50 amBOS-LHR

18h 22m1 stop

8:55 am - 11:25 amLHR-BOS

7h 30mnonstop

$365British Airways

Find Deal

Wed, Oct 22 - Thu, Oct 23

7:25 pm - 7:00 amBOS-LHR

6h 35mnonstop

6:50 pm - 8:55 pmLHR-BOS

31h 05m1 stop

$368Iberia

Find Deal

Tue, Nov 25 - Wed, Nov 26

8:05 pm - 7:50 amBOS-LHR

6h 45mnonstop

8:50 pm - 9:15 pmLHR-BOS

29h 25m1 stop

$369Iberia

Find Deal

Wed, Sep 24 - Thu, Sep 25

6:55 pm - 7:30 amBOS-LHR

31h 35m1 stop

6:00 am - 9:20 pmLHR-BOS

19h 20m1 stop

$371

Find Deal

Sat, Oct 25 - Tue, Oct 28

6:30 pm - 6:30 amBOS-LHR

31h 00m1 stop

6:00 am - 3:25 pmLHR-BOS

14h 25m1 stop

$372

Find Deal

Sat, Sep 13 - Tue, Sep 16

6:30 pm - 9:35 amBOS-LHR

10h 05m1 stop

8:40 am - 3:25 pmLHR-BOS

11h 45m1 stop

$388United Airlines

Find Deal

Tue, Oct 14 - Thu, Oct 16

7:12 pm - 10:40 amBOS-LHR

10h 28m1 stop

8:40 am - 3:25 pmLHR-BOS

11h 45m1 stop

$393United Airlines

Find Deal

Tue, Sep 2 - Thu, Sep 4

7:55 pm - 7:10 amBOS-LHR

30h 15m2 stops

6:50 am - 2:52 pmLHR-BOS

13h 02m2 stops

$398Air Canada

Find Deal

Mon, Nov 24 - Thu, Nov 27

3:40 pm - 7:10 amBOS-LHR

10h 30m1 stop

9:00 am - 5:50 pmLHR-BOS

13h 50m1 stop

$408Air Canada

Find Deal

Thu, Nov 6 - Sun, Nov 9

British Airways flights from Maine to London

Our best British Airways deals on Maine to London flight tickets

British Airways

Oct 22

BOS6:28 amBoston Logan Intl

18h 22m

1 stop

LHR5:50 amLondon Heathrow

Oct 23

LHR8:55 amLondon Heathrow

7h 30m

BOS11:25 amBoston Logan Intl

$365

Find similar

British Airways

Sep 26

BOS7:40 pmBoston Logan Intl

6h 40m

LHR7:20 amLondon Heathrow

Sep 28

LHR6:10 amLondon Heathrow

18h 40m

1 stop

BOS7:50 pmBoston Logan Intl

$366

Find similar

British Airways

Oct 1

BOS7:40 pmBoston Logan Intl

6h 40m

LHR7:20 amLondon Heathrow

Oct 2

LHR10:50 amLondon Heathrow

14h 00m

1 stop

BOS7:50 pmBoston Logan Intl

$367

Find similar

Iberia flights from Maine to London

Our best Iberia deals on Maine to London flight tickets

Iberia

Nov 25

BOS7:25 pmBoston Logan Intl

6h 35m

LHR7:00 amLondon Heathrow

Nov 26

LHR6:50 pmLondon Heathrow

31h 05m

1 stop

BOS8:55 pmBoston Logan Intl

$368

Find similar

Iberia

Sep 24

BOS8:05 pmBoston Logan Intl

6h 45m

LHR7:50 amLondon Heathrow

Sep 25

LHR8:50 pmLondon Heathrow

29h 25m

1 stop

BOS9:15 pmBoston Logan Intl

$369

Find similar

Iberia

Sep 1

BOS8:10 pmBoston Logan Intl

6h 40m

LHR7:50 amLondon Heathrow

Sep 2

LHR6:45 pmLondon Heathrow

25h 15m

1 stop

BOS3:00 pmBoston Logan Intl

$373

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 9/9

8:02 pm-11:25 am

1 stop10h 23m

London Heathrow

Thu 9/11

8:40 am-3:25 pm

1 stop11h 45m

$350

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/22

6:28 am-5:50 am

1 stop18h 22m

London Heathrow

Thu 10/23

8:55 am-11:25 am

Nonstop7h 30m

$365

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 11/25

7:25 pm-7:00 am

Nonstop6h 35m

London Heathrow

Wed 11/26

6:50 pm-8:55 pm

1 stop31h 05m

$368

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 9/24

8:05 pm-7:50 am

Nonstop6h 45m

London Heathrow

Thu 9/25

8:50 pm-9:15 pm

1 stop29h 25m

$369

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/25

6:55 pm-7:30 am

1 stop31h 35m

London Heathrow

Tue 10/28

6:00 am-9:20 pm

1 stop19h 20m

$371

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 9/13

6:30 pm-6:30 am

1 stop31h 00m

London Heathrow

Tue 9/16

6:00 am-3:25 pm

1 stop14h 25m

$372

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 10/14

6:30 pm-9:35 am

1 stop10h 05m

London Heathrow

Thu 10/16

8:40 am-3:25 pm

1 stop11h 45m

$388

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 9/2

7:12 pm-10:40 am

1 stop10h 28m

London Heathrow

Thu 9/4

8:40 am-3:25 pm

1 stop11h 45m

$393

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 11/24

7:55 pm-7:10 am

2 stops30h 15m

London Heathrow

Thu 11/27

6:50 am-2:52 pm

2 stops13h 02m

$398

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 11/6

3:40 pm-7:10 am

1 stop10h 30m

London Heathrow

Sun 11/9

9:00 am-5:50 pm

1 stop13h 50m

$408

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

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 $677, 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 $729.

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

The cheapest day to depart from Maine to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $788. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $936. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Maine at noon is the least expensive time of day to depart. momondo users have found prices as low as $827 when looking at flights departing at noon. Flights to London are more costly in the afternoon, with an average ticket price of $869. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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	$172
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 $172. The best round-trip flight deal from Maine to London found on momondo in the last 72 hours is $350.

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 are updated daily.
How many operators does momondo search for flights from Maine to London?
There are 19 operators available for flights from Maine to London 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 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.
What documentation or ID do you need to fly to London?
The necessary travel and health documents for your London 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

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $586	Free Cancellation	Rating 7.2 2,916 reviews	Search JetBlue flights
United Airlines	PriceFrom $648	Free Cancellation	Rating 7.4 8,920 reviews	Search United Airlines flights
American Airlines	PriceFrom $802	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $825	Free Cancellation	Rating 8.0 7,979 reviews	Search Delta flights

Gatwick

Hounslow

Dover

Slough

Luton

Guildford

Milton Keynes

Dartford

Crawley

Hayes

Chelmsford

Stansted

Ilford

Brentwood

Colchester

Folkestone

Watford

Canterbury

Richmond

Wembley

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. momondo enables you to select and highlight flights to London from Maine with this policy.

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?

Yes momondo offers price alerts on flights to London from Maine. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.