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>

$206 CHEAP FLIGHTS from Maine to London Heathrow (LHR)

LHR

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

...and more

Travelers love KAYAK

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

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

Cheapest round-trip

$489

Overall average: $623

Multiple Airlines

Fri 11/14Mon 11/17

BOS - LHR • 1 stop

Cheapest non-stop

$490

Typical prices: $411-$660

JetBlue

Wed 1/28Mon 2/2

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

Fri, Nov 14 - Mon, Nov 17

9:50 pm - 1:00 pmBOS-LHR

10h 10m1 stop

6:50 am - 2:52 pmLHR-BOS

13h 02m2 stops

$489Multiple Airlines

Find Deal

Sun, Nov 9 - Tue, Nov 18

8:00 pm - 7:50 amBOS-LHR

6h 50mnonstop

8:25 pm - 6:55 pmLHR-BOS

27h 30m1 stop

$490Virgin Atlantic

Find Deal

Fri, Jan 9 - Fri, Jan 16

7:25 pm - 9:15 amBOS-LHR

8h 50m1 stop

10:00 am - 4:50 pmLHR-BOS

11h 50m1 stop

$491Aer Lingus

Find Deal

Thu, Nov 13 - Sun, Nov 16

9:50 pm - 11:15 amBOS-LHR

32h 25m1 stop

9:00 am - 5:50 pmLHR-BOS

13h 50m1 stop

$492United Airlines

Find Deal

Sun, Nov 9 - Fri, Nov 14

7:50 pm - 7:30 pmBOS-LHR

18h 40m1 stop

12:15 pm - 5:50 pmLHR-BOS

10h 35m1 stop

$493Icelandair

Find Deal

Sun, Nov 9 - Fri, Nov 14

11:55 pm - 11:25 amBOS-LHR

6h 30mnonstop

11:45 am - 6:55 pmLHR-BOS

12h 10m1 stop

$494Virgin Atlantic

Find Deal

Wed, Nov 26 - Tue, Dec 2

7:50 pm - 10:50 amBOS-LHR

10h 00m1 stop

8:35 pm - 5:50 pmLHR-BOS

26h 15m1 stop

$495Icelandair

Find Deal

Wed, Nov 19 - Sun, Nov 23

10:15 am - 7:10 amBOS-LHR

15h 55m1 stop

9:00 am - 8:00 pmLHR-BOS

16h 00m1 stop

$497United Airlines

Find Deal

Fri, Dec 5 - Tue, Dec 9

7:12 pm - 6:55 amBOS-LHR

6h 43mnonstop

9:20 am - 12:12 pmLHR-BOS

7h 52mnonstop

$504JetBlue

Find Deal

Wed, Mar 18 - Fri, Apr 3

7:54 pm - 6:55 amBOS-LHR

7h 01mnonstop

8:25 am - 11:23 amLHR-BOS

7h 58mnonstop

$520JetBlue

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$206

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly with an average 18% increase 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

Salisbury

Ilford

Crawley

Guildford

Watford

Kingston upon Thames

Eastbourne

Colchester

Northampton

Ipswich

St. Albans

Swindon

Harrow

Bedford

Everything you need to know for your flight to London

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

London (LHR)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

LHR

$206 Find Cheap Flights from Maine to London

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

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 Maine to London flights

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

Information on your arrival and departure airports

Cabin class types available on flights to London

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 Maine

Choose which airport to fly into in London