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 return 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>

£145 CHEAP FLIGHTS from Maine to London

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

...and more

Travellers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

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Cheapest return fare

£376

Overall average: £431

Virgin Atlantic

Sat 17/1Fri 23/1

BOS - LHR • Direct

Cheapest one-way flight

£145

Typical prices: £219-£324

Virgin Atlantic

Thu 22/1

BOS - LHR • Direct

Start a new search

KAYAK searches hundreds 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 return 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 return flight deals from Maine to London

Sat, 17 Jan - Fri, 23 Jan

20:00 - 07:50

BOS

LHR

6h 50mdirect

13:05 - 16:00

LHR

BOS

7h 55mdirect

£376Virgin Atlantic

Sat, 17 Jan - Sat, 31 Jan

22:40 - 12:00

BOS

LTN

32h 20m1 stop

09:20 - 20:55

LTN

BOS

16h 35m1 stop

£377Multiple Airlines

Fri, 23 Jan - Mon, 9 Mar

19:12 - 06:55

BOS

LHR

6h 43mdirect

09:20 - 13:16

LHR

BOS

7h 56mdirect

£377JetBlue

Mon, 12 Jan - Thu, 15 Jan

22:40 - 15:25

BOS

LGW

11h 45m1 stop

11:45 - 19:50

LGW

BOS

13h 05m1 stop

£377Iberia

Mon, 12 Jan - Wed, 14 Jan

20:40 - 17:40

BOS

LCY

16h 00m2 stops

13:30 - 20:00

LCY

BOS

11h 30m1 stop

£377Multiple Airlines

Mon, 12 Jan - Tue, 20 Jan

19:12 - 06:55

BOS

LHR

6h 43mdirect

09:20 - 12:16

LHR

BOS

7h 56mdirect

£378JetBlue

Tue, 14 Apr - Tue, 21 Apr

22:45 - 20:25

BOS

LGW

16h 40m2 stops

10:35 - 20:05

LGW

BOS

14h 30m1 stop

£378TAP AIR PORTUGAL

Sat, 28 Mar - Sat, 4 Apr

19:25 - 08:05

BOS

LHR

8h 40m1 stop

09:50 - 15:30

LHR

BOS

10h 40m1 stop

£379Aer Lingus

Thu, 8 Jan - Sat, 7 Feb

22:45 - 20:40

BOS

LGW

16h 55m2 stops

16:35 - 14:35

LGW

BOS

27h 00m1 stop

£380TAP AIR PORTUGAL

Thu, 15 Jan - Mon, 11 May

19:25 - 09:15

BOS

LHR

8h 50m1 stop

09:50 - 15:30

LHR

BOS

10h 40m1 stop

£383Aer Lingus

Useful Info

Low season	January
High season	April
Cheapest flight	£145

Best time to beat the crowds (9% less expensive on average)

Most popular time to fly (1% more expensive on average)

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 return 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.

Gatwick

Milton Keynes

Eastbourne

Hounslow

Luton

Southend-on-Sea

Slough

Winchester

Croydon

Stansted

Folkestone

Chichester

Maidstone

Colchester

Chelmsford

Crawley

Richmond

Bedford

Watford

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

Return flight deals

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

£145 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 return 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 - Cheap tickets from Maine to London

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 return 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.

Travelling 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 hire

Find direct flights for London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight