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.

$330 CHEAP FLIGHTS from Maine to London

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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

Recent round-trip flight deals from Maine to London

Tue, Feb 23 - Thu, Feb 25

3:14 pm - 10:25 amPWM Portland-LHR London Heathrow

14h 11m1 stop Newark

6:50 am - 11:25 pmLHR London Heathrow-PWM Portland

21h 35m2 stops Brussels Bruxelles-National Newark

$763United Airlines

Tue, Feb 23 - Thu, Feb 25

3:13 pm - 10:25 amPWM Portland-LHR London Heathrow

14h 12m1 stop Newark

6:50 am - 11:25 pmLHR London Heathrow-PWM Portland

21h 35m2 stops Brussels Bruxelles-National Newark

$763United Airlines

Mon, Feb 15 - Thu, Feb 18

11:25 am - 8:05 amBGR Bangor-LHR London Heathrow

39h 40m2 stops Newark Zurich

7:40 am - 10:44 amLHR London Heathrow-BGR Bangor

32h 04m2 stops Chicago O'Hare Intl Newark

$764United Airlines

Sun, Apr 18 - Wed, Apr 21

4:10 pm - 7:25 amBGR Bangor-LHR London Heathrow

34h 15m2 stops Newark Halifax Intl

6:50 am - 10:04 pmLHR London Heathrow-BGR Bangor

20h 14m2 stops Brussels Bruxelles-National Newark

$768United Airlines

Fri, Dec 4 - Fri, Dec 11

4:00 pm - 7:15 amPWM Portland-LHR London Heathrow

10h 15m1 stop New York John F Kennedy Intl

10:00 am - 11:52 pmLHR London Heathrow-PWM Portland

18h 52m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$877Delta

Sun, Dec 6 - Sun, Dec 13

4:00 pm - 8:05 amPWM Portland-LHR London Heathrow

11h 05m1 stop New York John F Kennedy Intl

8:40 am - 12:21 amLHR London Heathrow-PWM Portland

20h 41m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$877Delta

Sat, Dec 5 - Sat, Dec 12

3:45 pm - 10:30 amBGR Bangor-LHR London Heathrow

13h 45m1 stop New York John F Kennedy Intl

4:25 pm - 3:05 pmLHR London Heathrow-BGR Bangor

27h 40m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$877KLM

Thu, Dec 3 - Thu, Dec 10

6:00 am - 6:35 amBGR Bangor-LHR London Heathrow

19h 35m1 stop Philadelphia

1:10 pm - 11:07 pmLHR London Heathrow-BGR Bangor

14h 57m1 stop Philadelphia

$906American Airlines

Sat, Feb 13 - Wed, Feb 17

10:28 am - 6:35 amBGR Bangor-LHR London Heathrow

15h 07m1 stop Philadelphia

10:35 am - 5:26 pmLHR London Heathrow-BGR Bangor

11h 51m1 stop Philadelphia

$923American Airlines

Sun, Apr 18 - Wed, Apr 21

6:27 pm - 10:20 amBGR Bangor-LHR London Heathrow

10h 53m1 stop Philadelphia

12:00 pm - 11:51 pmLHR London Heathrow-BGR Bangor

16h 51m1 stop Philadelphia

$928American Airlines

Recent last minute flight deals from Maine to London

Thu, Nov 12 - Wed, Nov 18

6:30 am - 9:40 pmPWM Portland-LHR London Heathrow

10h 10m1 stop New York John F Kennedy Intl

12:20 pm - 11:43 pmLHR London Heathrow-PWM Portland

16h 23m1 stop New York John F Kennedy Intl

$845JetBlue

Thu, Nov 12 - Wed, Nov 18

5:50 am - 8:35 pmPWM Portland-LHR London Heathrow

9h 45m1 stop Newark

9:00 am - 11:21 pmLHR London Heathrow-PWM Portland

19h 21m2 stops Zurich Newark

$875United Airlines

Thu, Nov 12 - Wed, Nov 18

11:00 am - 6:20 amBGR Bangor-LHR London Heathrow

14h 20m1 stop Newark

9:00 am - 10:19 amLHR London Heathrow-BGR Bangor

30h 19m2 stops Zurich Newark

$881United Airlines

Thu, Nov 12 - Wed, Nov 18

3:45 pm - 10:45 amBGR Bangor-LHR London Heathrow

14h 00m2 stops New York John F Kennedy Intl Amsterdam Schiphol

5:50 pm - 3:05 pmLHR London Heathrow-BGR Bangor

26h 15m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$884KLM

Thu, Nov 12 - Wed, Nov 18

8:49 am - 9:00 pmPWM Portland-LHR London Heathrow

31h 11m2 stops Newark Halifax Intl

1:00 pm - 11:21 pmLHR London Heathrow-PWM Portland

39h 21m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$886Air Canada

Thu, Nov 12 - Wed, Nov 18

6:00 am - 7:50 amBGR Bangor-LHR London Heathrow

20h 50m1 stop Philadelphia

10:35 am - 10:59 pmLHR London Heathrow-BGR Bangor

17h 24m1 stop Philadelphia

$906American Airlines

Tue, Nov 10 - Thu, Nov 12

9:46 am - 7:10 amPWM Portland-LHR London Heathrow

16h 24m2 stops Washington, D.C. Dulles Intl Montreal Pierre Elliott Trudeau Intl

6:00 am - 11:21 pmLHR London Heathrow-PWM Portland

22h 21m3 stops Zurich Toronto Pearson Intl Newark

$911Multiple Airlines

Tue, Nov 10 - Thu, Nov 12

6:30 am - 9:40 pmPWM Portland-LHR London Heathrow

10h 10m1 stop New York John F Kennedy Intl

7:25 am - 11:43 pmLHR London Heathrow-PWM Portland

21h 18m1 stop New York John F Kennedy Intl

$913JetBlue

Tue, Nov 10 - Thu, Nov 12

8:49 am - 6:30 amPWM Portland-LHR London Heathrow

16h 41m3 stops Newark Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

6:00 am - 11:21 pmLHR London Heathrow-PWM Portland

22h 21m3 stops Zurich Toronto Pearson Intl Newark

$919Air Canada

Tue, Nov 10 - Thu, Nov 12

2:05 pm - 11:40 amPWM Portland-LHR London Heathrow

16h 35m1 stop Atlanta Hartsfield-Jackson

11:30 am - 12:19 amLHR London Heathrow-PWM Portland

17h 49m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$1,016Multiple Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$330

Best time to beat the crowds with an average 36% drop in price.

Most popular time to fly with an average 4% increase in price.

Flight from Portland 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

Hayes

Slough

Richmond

Wembley

Luton

Ilford

Eastbourne

Kingston upon Thames

Guildford

Crawley

Bedford

Watford

Harrow

Ipswich

Folkestone

St. Albans

Colchester

Woodbridge

Maidstone

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$330 Find Cheap Flights from Maine to London - Compare and Save

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

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High season

Cheapest flight

FAQs for booking flights from Maine to London

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Complete your trip to London with a hotel stay or car rental

Cabin class types available on flights to Maine

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