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

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

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

The number of flights available between London and Maine is 189 per week as of May 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.

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

Prices for flights from London to Maine refresh daily.

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

The number of operators available for flights from London to Maine is 10 as of May 2026.

How old do you have to be to fly from London to Maine?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Maine.

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

The required travel and health documents for your Maine trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Maine. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$463 Cheap Flights from London to Maine in 2026

1 adult

0 bags

Find the cheapest flights from London to Maine

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:15 am - 5:22 pm

LHR

BOS

14h 07m

1 stop

6:05 am - 8:45 pm

BOS

LHR

9h 40m

1 stop

$642JetBlue

Fri, Jul 3 - Thu, Jul 16

3:40 pm - 9:45 pm

LGW

BOS

11h 05m

1 stop

11:00 pm - 2:40 pm

BOS

LGW

10h 40m

1 stop

$642Icelandair

Tue, Sep 29 - Tue, Oct 6

9:15 am - 7:10 pm

LHR

BOS

14h 55m

1 stop

9:20 pm - 2:55 pm

BOS

LHR

12h 35m

1 stop

$643Iberia

Fri, Jul 17 - Sun, Aug 30

6:15 pm - 9:45 pm

LTN

BOS

32h 30m

1 stop

10:55 pm - 10:40 pm

BOS

LTN

18h 45m

1 stop

$643Multiple Airlines

Sat, Jul 11 - Wed, Jul 29

3:40 pm - 9:45 pm

LGW

BOS

11h 05m

1 stop

8:50 pm - 11:45 am

BOS

LGW

9h 55m

1 stop

$643Icelandair

Thu, Jun 4 - Mon, Jul 6

12:05 pm - 8:20 pm

LGW

BOS

13h 15m

1 stop

7:00 pm - 8:35 pm

BOS

LGW

21h 35m

2 stops

$644TAP AIR PORTUGAL

Mon, Oct 19 - Mon, Oct 26

9:00 am - 2:55 pm

LTN

BOS

10h 55m

1 stop

5:25 pm - 11:25 am

BOS

LTN

13h 00m

1 stop

$644Multiple Airlines

Sun, May 17 - Sun, May 24

9:15 pm - 8:20 pm

LGW

BOS

28h 05m

1 stop

6:00 pm - 9:50 am

BOS

LGW

10h 50m

1 stop

$645TAP AIR PORTUGAL

Fri, May 15 - Wed, Nov 4

4:30 pm - 1:40 pm

LHR

BOS

26h 10m

1 stop

5:05 pm - 9:40 am

BOS

LHR

11h 35m

1 stop

$645ITA Airways

Fri, Sep 11 - Wed, Oct 7

11:30 am - 7:50 pm

LGW

BOS

13h 20m

1 stop

5:40 pm - 10:50 am

BOS

LGW

12h 10m

1 stop

$650Iberia

Tue, Jul 14 - Mon, Aug 17

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SWISS flights from London to Maine

Our best SWISS deals on London to Maine flight tickets

SWISS

Sep 2

LCY9:15 amLondon City

10h 55m

1 stop

BOS3:10 pmBoston Logan Intl

Sep 15

BOS9:40 pmBoston Logan Intl

9h 55m

1 stop

LCY12:35 pmLondon City

$694

SWISS

Sep 30

LCY9:15 amLondon City

10h 55m

1 stop

BOS3:10 pmBoston Logan Intl

Oct 13

BOS9:40 pmBoston Logan Intl

9h 55m

1 stop

LCY12:35 pmLondon City

$696

SWISS

Sep 29

LCY9:15 amLondon City

10h 55m

1 stop

BOS3:10 pmBoston Logan Intl

Oct 6

BOS9:40 pmBoston Logan Intl

9h 55m

1 stop

LCY12:35 pmLondon City

$698

TAP AIR PORTUGAL flights from London to Maine

Our best TAP AIR PORTUGAL deals on London to Maine flight tickets

TAP AIR PORTUGAL

May 9

LGW12:05 pmLondon Gatwick

13h 15m

1 stop

BOS8:20 pmBoston Logan Intl

May 11

BOS11:15 pmBoston Logan Intl

31h 05m

1 stop

LGW11:20 amLondon Gatwick

$643

TAP AIR PORTUGAL

Oct 19

LGW12:05 pmLondon Gatwick

13h 15m

1 stop

BOS8:20 pmBoston Logan Intl

Oct 26

BOS7:00 pmBoston Logan Intl

21h 35m

2 stops

LGW8:35 pmLondon Gatwick

$644

TAP AIR PORTUGAL

May 15

LGW9:15 pmLondon Gatwick

28h 05m

1 stop

BOS8:20 pmBoston Logan Intl

Nov 4

BOS6:00 pmBoston Logan Intl

10h 50m

1 stop

LGW9:50 amLondon Gatwick

$647

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 7/3

8:15 am-5:22 pm

1 stop14h 07m

Boston Logan Intl

Thu 7/16

6:05 am-8:45 pm

1 stop9h 40m

$642

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 9/29

3:40 pm-9:45 pm

1 stop11h 05m

Boston Logan Intl

Tue 10/6

11:00 pm-2:40 pm

1 stop10h 40m

$642

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 7/17

9:15 am-7:10 pm

1 stop14h 55m

Boston Logan Intl

Sun 8/30

9:20 pm-2:55 pm

1 stop12h 35m

$643

LondonBoston

LTN - BOS

LTNBOS

London Luton

Sat 7/11

6:15 pm-9:45 pm

1 stop32h 30m

Boston Logan Intl

Wed 7/29

10:55 pm-10:40 pm

1 stop18h 45m

$643

Quickest round-trip

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 6/4

3:40 pm-9:45 pm

1 stop11h 05m

Boston Logan Intl

Mon 7/6

8:50 pm-11:45 am

1 stop9h 55m

$643

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Mon 10/19

12:05 pm-8:20 pm

1 stop13h 15m

Boston Logan Intl

Mon 10/26

7:00 pm-8:35 pm

2 stops21h 35m

$644

LondonBoston

LTN - BOS

LTNBOS

London Luton

Sun 5/17

9:00 am-2:55 pm

1 stop10h 55m

Boston Logan Intl

Sun 5/24

5:25 pm-11:25 am

1 stop13h 00m

$644

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Fri 5/15

9:15 pm-8:20 pm

1 stop28h 05m

Boston Logan Intl

Wed 11/4

6:00 pm-9:50 am

1 stop10h 50m

$645

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 9/11

4:30 pm-1:40 pm

1 stop26h 10m

Boston Logan Intl

Wed 10/7

5:05 pm-9:40 am

1 stop11h 35m

$645

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 7/14

11:30 am-7:50 pm

1 stop13h 20m

Boston Logan Intl

Mon 8/17

5:40 pm-10:50 am

1 stop12h 10m

$650

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 London to Maine

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 Maine?

The cheapest month to fly to Maine from London is in October. Flight prices, which tend to average around $162, are often lower during this time because this is during the off-season. If you aren’t able to travel to Maine during the month of October, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $193.

Cheap London to Maine flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Maine

Fastest flight time	7h 25m
Direct flights	Every day
Airports in Maine	49 airports

The fastest flight from London to Maine takes 7h 25m

Direct flights go from London to Maine every day.

There are 49 airports in Maine. From London there are direct flights to Boston Logan Intl (BOS).

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Frequently asked questions about flying from London to Maine

When did momondo last update prices for flights from London to Maine?
Prices for flights from London to Maine refresh daily.
How many operators does momondo search for flights from London to Maine?
The number of operators available for flights from London to Maine is 10 as of May 2026.
How old do you have to be to fly from London to Maine?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Maine.
What documentation or ID do you need to fly to Maine?
The required travel and health documents for your Maine trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Maine. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from London to Maine?

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 Maine from London.

Can I find flights from London to Maine with flexible booking policies on momondo?

momondo does allow users to show only those flights to Maine from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Maine?

momondo helps you find the best flight between London and Maine by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Maine right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Maine from London. 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.