How does KAYAK find such low prices on flights from Maine to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to London. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Maine is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Maine to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Maine with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$215 CHEAP FLIGHTS from Maine to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$493

Overall average: $595

British Airways

Wed 3/4Tue 3/17

BOS - LHR • Non-stop

Cheapest non-stop

$493

Typical prices: $567-$722

British Airways

Wed 3/4Wed 3/18

BOS - LHR • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to London!

Flight Deals

Cheap Flights from Maine to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Maine to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Maine to London

Wed, Mar 4 - Tue, Mar 17

7:15 pm - 7:00 am

BOS

LHR

6h 45mnonstop

5:05 pm - 8:45 pm

LHR

BOS

7h 40mnonstop

$493British Airways

Fri, Apr 24 - Thu, Apr 30

5:40 pm - 1:45 pm

BOS

LTN

15h 05m

1 stop

8:00 am - 4:10 pm

LTN

BOS

13h 10m

1 stop

$493Multiple Airlines

Sun, Feb 8 - Tue, Feb 17

10:10 pm - 5:50 pm

BOS

LGW

14h 40m

1 stop

6:40 pm - 8:20 pm

LGW

BOS

30h 40m

1 stop

$493SWISS

Tue, Feb 24 - Tue, Mar 3

9:50 pm - 12:55 pm

BOS

LCY

10h 05m

1 stop

1:30 pm - 8:20 pm

LCY

BOS

11h 50m

1 stop

$493SWISS

Sat, Jan 31 - Sat, Feb 7

4:15 pm - 11:35 am

BOS

STN

14h 20m

2 stops

9:45 pm - 3:57 pm

STN

BOS

23h 12m

2 stops

$493Multiple Airlines

Thu, Mar 5 - Tue, Mar 24

11:35 am - 10:55 am

BOS

LGW

18h 20m

1 stop

11:55 am - 11:35 am

LGW

BOS

27h 40m

1 stop

$495Icelandair

Fri, Feb 13 - Tue, Feb 17

6:00 am - 9:20 pm

BOS

LHR

10h 20m

1 stop

12:05 pm - 8:20 pm

LHR

BOS

13h 15m

1 stop

$496United Airlines

Thu, Mar 5 - Tue, Mar 24

11:35 am - 10:55 am

BOS

LGW

18h 20m

1 stop

11:55 am - 11:35 am

LGW

BOS

27h 40m

1 stop

$497Icelandair

Wed, Feb 4 - Sun, Feb 15

8:00 pm - 7:50 am

BOS

LHR

6h 50mnonstop

11:45 am - 6:55 pm

LHR

BOS

12h 10m

1 stop

$497Virgin Atlantic

Sat, Apr 25 - Tue, Apr 28

7:33 pm - 6:55 am

PWM

LHR

30h 22m

1 stop

6:50 am - 10:22 am

LHR

PWM

32h 32m

2 stops

$530United Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$215

Best time to beat the crowds with an average 2% drop in price.

Most popular time to fly and prices are also 5% lower on average.

Flight from Boston to London Gatwick Airport

How does KAYAK find such low prices on flights from Maine to London?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Maine is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Maine to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Maine with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to London?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Hounslow

Slough

Hayes

Wembley

Richmond

Luton

Ilford

Crawley

Watford

Guildford

Eastbourne

Kingston upon Thames

Colchester

St. Albans

Ipswich

Twickenham

Bedford

Barnet

Harrow

Hastings

Everything you need to know for your flight to London

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Cabin class types available on flights to Maine

First Class flights to London

Business Class flights to London

Prem Econ Class flights to London

Economy Class flights to London

$216 Find Cheap Flights from Maine to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

Everything you should know

Cheap Flights from Maine to London

Recent round-trip flight deals from Maine to London

Recent one-way flight deals from Maine to London

Recent last minute flight deals from Maine to London

Recent direct flight deals from Maine to London

Good to know

FAQs for booking flights from Maine to London

How does KAYAK find such low prices on flights from Maine to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maine to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Maine is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Maine to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Maine with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near London?

Everything you need to know for your flight to London

Cabin class types available on flights to Maine

Complete your trip to London with a hotel stay or car rental

Find direct flights for London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London