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>

$224 CHEAP FLIGHTS from Maine to London

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

...and more

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41.299.237 searches in the past 7 days on KAYAK

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Cheapest round-trip

$486

Overall average: $636

Icelandair

Fri 5/1Mon 5/4

BOS - LHR • 1 stop

Cheapest non-stop

$502

Typical prices: $488-$726

JetBlue

Thu 8/13Fri 8/28

BOS - LGW • 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

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

Fri, May 1 - Mon, May 4

11:00 pm - 8:20 pm

BOS

LHR

16h 20m

1 stop

9:25 pm - 6:50 pm

LHR

BOS

26h 25m

1 stop

$486Icelandair

Wed, Feb 25 - Tue, Mar 10

7:50 pm - 10:55 am

BOS

LGW

10h 05m

1 stop

11:55 am - 6:50 pm

LGW

BOS

10h 55m

1 stop

$486Icelandair

Tue, Mar 3 - Sun, Mar 8

10:45 am - 9:50 am

BOS

STN

18h 05m

2 stops

6:30 am - 1:10 pm

STN

BOS

35h 40m

2 stops

$486Multiple Airlines

Fri, Mar 20 - Mon, Mar 23

1:00 pm - 8:55 am

BOS

LTN

15h 55m

2 stops

1:50 pm - 7:35 pm

LTN

BOS

33h 45m

2 stops

$487Multiple Airlines

Fri, May 8 - Mon, May 18

8:50 pm - 11:55 am

BOS

LHR

10h 05m

1 stop

9:25 pm - 6:50 pm

LHR

BOS

26h 25m

1 stop

$487Icelandair

Sat, Feb 28 - Sat, Mar 7

1:00 pm - 10:35 am

BOS

LGW

16h 35m

2 stops

6:55 pm - 1:10 pm

LGW

BOS

23h 15m

2 stops

$487Multiple Airlines

Thu, Mar 5 - Mon, Mar 16

7:25 pm - 9:15 am

BOS

LHR

8h 50m

1 stop

10:00 am - 5:50 pm

LHR

BOS

11h 50m

1 stop

$489Aer Lingus

Thu, Mar 5 - Wed, Mar 11

7:25 pm - 9:15 am

BOS

LHR

8h 50m

1 stop

10:00 am - 5:50 pm

LHR

BOS

11h 50m

1 stop

$490Aer Lingus

Thu, Apr 30 - Fri, May 8

10:45 pm - 9:45 am

BOS

LGW

30h 00m

1 stop

9:15 pm - 2:45 pm

LGW

BOS

22h 30m

2 stops

$490TAP AIR PORTUGAL

Mon, Apr 6 - Wed, Apr 8

5:45 pm - 5:55 pm

BOS

LCY

19h 10m

1 stop

9:15 am - 11:59 pm

LCY

BOS

19h 44m

2 stops

$517Lufthansa

Useful Info

Low season	January
High season	April
Cheapest flight	$224

Best time to beat the crowds with an average 14% drop in price.

Flight from Boston to London Heathrow 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

Wembley

Hayes

Richmond

Luton

Ilford

Crawley

Watford

Guildford

Eastbourne

Kingston upon Thames

Colchester

St. Albans

Ipswich

Bedford

Twickenham

Barnet

Harrow

Maidenhead

Everything you need to know for your flight to London

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Complete your trip

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Origins

Other airports

Cabin class types available on flights to Maine

First Class flights to London

Business Class flights to London

Premium Economy Class flights to London

Economy Class flights to London

$224 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