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

British Airways, United Airlines, and Finnair 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 211 per week as of March 2026. The most frequent departure day is Mon, with 15% 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 9 as of March 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.

$376 Cheap Flights from London to Maine in 2026

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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.

2:30 pm - 4:55 pm

LHR

BOS

7h 25mnonstop

9:50 pm - 9:35 am

BOS

LHR

6h 45mnonstop

$499British Airways

Mon, Apr 20 - Mon, May 4

2:25 pm - 4:50 pm

LHR

BOS

7h 25mnonstop

9:50 pm - 9:35 am

BOS

LHR

6h 45mnonstop

$500British Airways

Tue, Apr 21 - Tue, May 5

12:05 pm - 8:20 pm

LGW

BOS

13h 15m

1 stop

6:05 pm - 9:45 am

BOS

LGW

10h 40m

1 stop

$501TAP AIR PORTUGAL

Wed, Apr 22 - Tue, May 5

10:35 am - 8:20 pm

LGW

BOS

14h 45m

1 stop

6:05 pm - 9:45 am

BOS

LGW

10h 40m

1 stop

$508TAP AIR PORTUGAL

Tue, Apr 21 - Tue, May 5

9:30 am - 4:22 pm

LHR

BOS

11h 52m

1 stop

6:00 am - 8:40 pm

BOS

LHR

9h 40m

1 stop

$509United Airlines

Wed, Apr 22 - Wed, May 6

4:30 pm - 1:40 pm

LHR

BOS

26h 10m

1 stop

5:05 pm - 9:40 am

BOS

LHR

11h 35m

1 stop

$516ITA Airways

Mon, Apr 20 - Mon, Apr 27

3:40 pm - 9:45 pm

LGW

BOS

11h 05m

1 stop

11:00 pm - 2:40 pm

BOS

LGW

10h 40m

1 stop

$520Icelandair

Fri, Aug 21 - Wed, Aug 26

1:05 pm - 9:45 pm

LHR

BOS

13h 40m

1 stop

8:50 pm - 11:55 am

BOS

LHR

10h 05m

1 stop

$524Icelandair

Sat, Apr 18 - Sat, May 2

7:25 pm - 1:40 pm

LCY

BOS

23h 15m

2 stops

5:05 pm - 9:15 pm

BOS

LCY

23h 10m

2 stops

$623ITA Airways

Mon, Apr 20 - Mon, Apr 27

12:00 pm - 7:43 pm

LHR

BGR

12h 43m

1 stop

7:40 am - 8:30 am

BGR

LHR

19h 50m

2 stops

$863United Airlines

Wed, Apr 29 - Wed, May 6

Icelandair flights from London to Maine

Our best Icelandair deals on London to Maine flight tickets

Icelandair

Aug 21

LGW3:40 pmLondon Gatwick

11h 05m

1 stop

BOS9:45 pmBoston Logan Intl

Aug 26

BOS11:00 pmBoston Logan Intl

10h 40m

1 stop

LGW2:40 pmLondon Gatwick

$520

Icelandair

Apr 20

LGW3:40 pmLondon Gatwick

11h 05m

1 stop

BOS9:45 pmBoston Logan Intl

Apr 27

BOS8:50 pmBoston Logan Intl

9h 55m

1 stop

LGW11:45 amLondon Gatwick

$526

Icelandair

Apr 13

LHR9:25 pmLondon Heathrow

26h 25m

1 stop

BOS6:50 pmBoston Logan Intl

May 18

BOS8:50 pmBoston Logan Intl

10h 05m

1 stop

LHR11:55 amLondon Heathrow

$535

TAP AIR PORTUGAL flights from London to Maine

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

TAP AIR PORTUGAL

Aug 19

LGW12:05 pmLondon Gatwick

13h 15m

1 stop

BOS8:20 pmBoston Logan Intl

Aug 29

BOS6:05 pmBoston Logan Intl

10h 40m

1 stop

LGW9:45 amLondon Gatwick

$535

TAP AIR PORTUGAL

Aug 19

LGW12:05 pmLondon Gatwick

13h 15m

1 stop

BOS8:20 pmBoston Logan Intl

Sep 1

BOS6:05 pmBoston Logan Intl

10h 40m

1 stop

LGW9:45 amLondon Gatwick

$536

TAP AIR PORTUGAL

Apr 15

LGW12:05 pmLondon Gatwick

13h 15m

1 stop

BOS8:20 pmBoston Logan Intl

Apr 22

BOS11:15 pmBoston Logan Intl

16h 15m

1 stop

LGW8:30 pmLondon Gatwick

$559

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/20

2:30 pm-4:55 pm

Nonstop7h 25m

Boston Logan Intl

Mon 5/4

9:50 pm-9:35 am

Nonstop6h 45m

$499

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 4/21

2:25 pm-4:50 pm

Nonstop7h 25m

Boston Logan Intl

Tue 5/5

9:50 pm-9:35 am

Nonstop6h 45m

$500

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Wed 4/22

12:05 pm-8:20 pm

1 stop13h 15m

Boston Logan Intl

Tue 5/5

6:05 pm-9:45 am

1 stop10h 40m

$501

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 4/21

10:35 am-8:20 pm

1 stop14h 45m

Boston Logan Intl

Tue 5/5

6:05 pm-9:45 am

1 stop10h 40m

$508

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 4/22

9:30 am-4:22 pm

1 stop11h 52m

Boston Logan Intl

Wed 5/6

6:00 am-8:40 pm

1 stop9h 40m

$509

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/20

4:30 pm-1:40 pm

1 stop26h 10m

Boston Logan Intl

Mon 4/27

5:05 pm-9:40 am

1 stop11h 35m

$516

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Fri 8/21

3:40 pm-9:45 pm

1 stop11h 05m

Boston Logan Intl

Wed 8/26

11:00 pm-2:40 pm

1 stop10h 40m

$520

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 4/18

1:05 pm-9:45 pm

1 stop13h 40m

Boston Logan Intl

Sat 5/2

8:50 pm-11:55 am

1 stop10h 05m

$524

LondonBoston

LCY - BOS

LCYBOS

London City

Mon 4/20

7:25 pm-1:40 pm

2 stops23h 15m

Boston Logan Intl

Mon 4/27

5:05 pm-9:15 pm

2 stops23h 10m

$623

LondonBangor

LHR - BGR

LHRBGR

London Heathrow

Wed 4/29

12:00 pm-7:43 pm

1 stop12h 43m

Bangor

Wed 5/6

7:40 am-8:30 am

2 stops19h 50m

$863

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 $694, 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 February is also cheap. Prices for this month can be found on momondo for an average of $696.

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).

Search flight deals

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 9 as of March 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.