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>

$154 CHEAP FLIGHTS from Maine to London

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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

Mon, Oct 13 - Fri, Oct 17

5:05 pm - 11:25 amBOS-LHR

13h 20m1 stop

8:40 am - 3:25 pmLHR-BOS

11h 45m1 stop

$271SWISS

Find Deal

Tue, Oct 14 - Fri, Oct 17

5:40 pm - 8:55 amBOS-LHR

34h 15m2 stops

6:40 am - 3:35 pmLHR-BOS

13h 55m1 stop

$320Scandinavian Airlines

Find Deal

Mon, Aug 25 - Wed, Aug 27

6:30 pm - 9:20 amBOS-LHR

9h 50m1 stop

8:40 am - 3:25 pmLHR-BOS

11h 45m1 stop

$347Lufthansa

Find Deal

Mon, Aug 25 - Wed, Aug 27

6:40 pm - 6:30 amBOS-LHR

30h 50m1 stop

6:40 pm - 7:55 pmLHR-BOS

30h 15m1 stop

$354

Find Deal

Mon, Aug 25 - Thu, Aug 28

6:40 pm - 6:30 amBOS-LHR

30h 50m1 stop

6:00 am - 3:25 pmLHR-BOS

14h 25m1 stop

$365

Find Deal

Sun, Sep 21 - Mon, Sep 22

7:25 pm - 7:05 amBOS-LHR

6h 40mnonstop

7:25 pm - 9:15 pmLHR-BOS

30h 50m1 stop

$369Iberia

Find Deal

Tue, Nov 4 - Thu, Nov 6

3:40 pm - 11:20 amBOS-LHR

14h 40m2 stops

9:00 am - 5:50 pmLHR-BOS

13h 50m1 stop

$376Air Canada

Find Deal

Sun, Sep 21 - Mon, Sep 22

4:30 pm - 2:55 pmBOS-LHR

17h 25m1 stop

7:25 pm - 9:15 pmLHR-BOS

30h 50m1 stop

$383Iberia

Find Deal

Mon, Sep 29 - Wed, Oct 1

3:15 pm - 9:35 amBOS-LHR

13h 20m1 stop

8:40 am - 5:55 pmLHR-BOS

14h 15m2 stops

$389Air Canada

Find Deal

Wed, Nov 19 - Fri, Nov 21

4:15 pm - 5:40 pmBOS-LCY

20h 25m1 stop

9:55 am - 6:35 pmLCY-BOS

13h 40m2 stops

$518Lufthansa

Find Deal

Useful Info

Low season	January
High season	April
Cheapest flight	$154

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly and prices are also 11% lower 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 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.

Ilford

Deal

Southall

St. Albans

Folkestone

Barnet

Bishop's Stortford

Ascot

Ely

Enfield

Rye

Edgware

Weybridge

Alton

Woodstock

Dorking

Beaconsfield

Hatfield

Burford

Epsom

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

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

$154 Find Cheap Flights from Maine to London

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

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