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

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 Heathrow Airport. 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 Heathrow Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

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 Heathrow Airport 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 Heathrow Airport?

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 Heathrow Airport 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>

$152 CHEAP FLIGHTS from Maine to London Heathrow (LHR)

LHR

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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

Fri, Nov 14 - Sun, Nov 16

5:35 pm - 6:30 pmBOS-LHR

19h 55m2 stops

1:55 pm - 3:50 pmLHR-BOS

30h 55m2 stops

$338Scandinavian Airlines

Find Deal

Fri, Nov 14 - Sun, Nov 16

5:35 pm - 4:00 pmBOS-LHR

17h 25m1 stop

1:55 pm - 3:50 pmLHR-BOS

30h 55m2 stops

$341Scandinavian Airlines

Find Deal

Tue, Sep 2 - Wed, Sep 3

8:10 pm - 7:50 amBOS-LHR

6h 40mnonstop

8:50 pm - 9:15 pmLHR-BOS

29h 25m1 stop

$448Iberia

Find Deal

Wed, Sep 3 - Thu, Sep 4

8:10 pm - 7:50 amBOS-LHR

6h 40mnonstop

3:50 pm - 3:00 pmLHR-BOS

28h 10m1 stop

$453Iberia

Find Deal

Wed, Jul 9 - Tue, Aug 19

8:50 pm - 11:55 amBOS-LHR

10h 05m1 stop

9:55 am - 9:15 pmLHR-BOS

16h 20m1 stop

$460

Find Deal

Mon, Jul 7 - Tue, Aug 19

8:50 pm - 11:55 amBOS-LHR

10h 05m1 stop

9:55 am - 9:15 pmLHR-BOS

16h 20m1 stop

$461

Find Deal

Fri, Sep 19 - Sun, Sep 21

8:02 pm - 11:25 amBOS-LHR

10h 23m1 stop

8:45 am - 7:55 pmLHR-BOS

16h 10m1 stop

$472United Airlines

Find Deal

Fri, Nov 21 - Sat, Nov 29

10:45 pm - 9:35 pmBOS-LHR

17h 50m1 stop

6:30 pm - 2:30 pmLHR-BOS

25h 00m1 stop

$477TAP AIR PORTUGAL

Find Deal

Wed, Nov 26 - Sun, Nov 30

6:05 pm - 11:25 amBOS-LHR

12h 20m1 stop

6:00 am - 8:10 pmLHR-BOS

19h 10m1 stop

$479TAP AIR PORTUGAL

Find Deal

Fri, Sep 26 - Sun, Sep 28

5:05 pm - 4:25 pmBOS-LHR

18h 20m1 stop

9:30 am - 9:30 amLHR-BOS

29h 00m1 stop

$491United Airlines

Find Deal

Useful Info

Low season	February
High season	July
Cheapest flight	$152

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly with an average 22% increase in price.

Flight from Boston to London Heathrow Airport

How does KAYAK find such low prices on flights from Maine to London Heathrow Airport?
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 Heathrow Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to London Heathrow Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?
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 Heathrow Airport 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 Heathrow Airport?
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 Heathrow Airport 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

Chipping Campden

Barnet

Bishop's Stortford

Enfield

Ascot

Ely

Rye

Edgware

Weybridge

Woodstock

Alton

Dorking

Christchurch

Hatfield

Beaconsfield

Everything you need to know for your flight to London

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Origins

Other airports

Information on your arrival and departure airports

London Heathrow Airport (LHR)

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

LHR

$152 Find Cheap Flights from Maine to London Heathrow Airport

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

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 Heathrow Airport flights

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

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 Heathrow Airport.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

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 Heathrow Airport 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 Heathrow Airport?

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 Heathrow Airport 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