Find flights
Deals
When to book
FAQs

Cheap flights from Maine to London Heathrow Airport from £161

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
16 Mar — 23 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Maine to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Maine to Heathrow
Explore the most affordable flight options available from Maine to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 February 2026.

Sun 15/218:40
BOS
-
LHR
1 stop20h 55m
Multiple Airlines
Mon 23/209:05
LHR
-
BOS
1 stop34h 00m
Multiple Airlines
Deal found 13/2£357
Fri 8/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Tue 26/521:25
LHR
-
BOS
1 stop29h 20m
Icelandair
Deal found 13/2£357
Fri 16/1017:40
BOS
-
LHR
1 stop14h 55m
Scandinavian Airlines
Sun 18/1009:55
LHR
-
BOS
2 stops34h 40m
Scandinavian Airlines
Deal found 13/2£358
Sat 28/219:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Tue 31/309:50
LHR
-
BOS
1 stop10h 50m
Aer Lingus
Deal found 13/2£359
Thu 5/319:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Wed 11/310:00
LHR
-
BOS
1 stop11h 50m
Aer Lingus
Deal found 13/2£360
Wed 18/221:50
BOS
-
LHR
1 stop10h 10m
SWISS
Wed 25/220:05
LHR
-
BOS
1 stop28h 55m
SWISS
Deal found 12/2£360
Sun 29/323:00
BOS
-
LHR
1 stop16h 20m
Icelandair
Fri 1/513:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Deal found 10/2£361
Sun 8/320:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Thu 12/310:00
LHR
-
BOS
1 stop11h 50m
Aer Lingus
Deal found 12/2£362
Sat 28/219:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Thu 5/310:00
LHR
-
BOS
1 stop11h 50m
Aer Lingus
Deal found 11/2£362
Fri 20/315:35
BOS
-
LHR
1 stop11h 35m
Multiple Airlines
Tue 24/306:00
LHR
-
BOS
1 stop13h 05m
Multiple Airlines
Deal found 10/2£363
Tue 14/420:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Sun 19/413:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Deal found 10/2£364
Sun 15/321:40
BOS
-
LHR
1 stop14h 10m
Lufthansa
Wed 25/311:10
LHR
-
BOS
1 stop12h 25m
Lufthansa
Deal found 12/2£365

Find flight deals from Maine to Heathrow

Keep the following information in mind while searching for Maine to Heathrow flight deals. Data was last updated 14 February 2026.

Round-trip from

£357

One-way from

£161

Popular in

July

Cheapest in

October

Average price

£494
Icelandair
  • Icelandair
  • 25/2-1/3
  • 2 total stops
  • 44h 55m total
  • Maine to London
Search Deals
United Airlines
  • United Airlines
  • 12/5
  • 2 total stops
  • 16h 36m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Maine to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 February 2026.
Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.

Fly from

Maine

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 7/3

18:40-20:35

1 stop20h 55m

London Heathrow

Thu 12/3

13:45-21:20

1 stop11h 35m

£374

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 12/3

07:05-20:35

1 stop9h 30m

London Heathrow

Thu 19/3

13:45-21:20

1 stop11h 35m

£375

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 15/3

15:35-07:10

1 stop11h 35m

London Heathrow

Wed 18/3

09:00-21:20

1 stop16h 20m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 6/3

18:30-11:05

1 stop11h 35m

London Heathrow

Tue 10/3

09:00-21:20

1 stop16h 20m

£377

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 26/2

19:15-06:50

Nonstop6h 35m

London Heathrow

Mon 2/3

06:20-13:30

1 stop12h 10m

£381

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 10/3

20:10-06:50

Nonstop6h 40m

London Heathrow

Mon 16/3

06:20-14:30

1 stop12h 10m

£381

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 9/3

20:10-06:50

Nonstop6h 40m

London Heathrow

Mon 16/3

06:20-14:30

1 stop12h 10m

£381

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 28/2

19:15-06:50

Nonstop6h 35m

London Heathrow

Fri 6/3

06:20-13:30

1 stop12h 10m

£382

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 5/3

20:00-07:50

Nonstop6h 50m

London Heathrow

Mon 9/3

06:30-14:20

1 stop11h 50m

£382

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 28/2

18:55-06:30

Nonstop6h 35m

London Heathrow

Wed 4/3

11:40-14:20

Nonstop7h 40m

£387

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 56 results
1
2
3
...
6

Best time to book a flight from Maine to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Maine with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Maine to London Heathrow Airport

What is the cheapest month to book a flight from Maine to London Heathrow Airport?

Currently, April is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £438). Flying from Maine to London Heathrow Airport in December is currently the most expensive (average of £1,080). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Maine to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from Maine to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Maine to London Heathrow Airport?

    Airlines like United Airlines, Delta, and American Airlines fly from Maine to London Heathrow Airport in about 10h 43m. The time it takes to get you to your destination can typically vary by up to 10h 12m. Maine and London Heathrow Airport are separated by a distance of 3067 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Maine to London Heathrow Airport?

    The most popular flight routes from Maine to London Heathrow Airport are Boston Logan Intl - London Heathrow, Bangor - London Heathrow and Portland - London Heathrow.

  • Can I find deals for flights from Maine to Heathrow that include hotel bookings?

    Yes. In addition to deals on Maine to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Maine to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maine to Heathrow.

  • Can I find deals for business class flights from Maine to Heathrow?

    Yes. Cheapflights offers flight deals from Maine to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Maine to London Heathrow Airport?

    Currently, April is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £438). Flying from Maine to London Heathrow Airport in December is currently the most expensive (average of £1,080). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Ipswich
Swindon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Maine to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
Boston to Heathrow flights
John F Kennedy Intl to Gatwick flights
Dulles Intl to Heathrow flights
Los Angeles to Heathrow flights
LaGuardia to Heathrow flights
Newark to Gatwick flights
O'Hare Intl to Heathrow flights
John F Kennedy Intl to London City flights
San Francisco to Heathrow flights
John F Kennedy Intl to Stansted flights
Dallas/Fort Worth to Heathrow flights
Baltimore to Heathrow flights
Seattle to Heathrow flights
LaGuardia to Gatwick flights
Boston to Gatwick flights
Miami to Heathrow flights
Atlanta to Heathrow flights
Hobby to Heathrow flights
Orlando to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Boston to London City flights
Los Angeles to Gatwick flights
Dulles Intl to London City flights
Denver to Heathrow flights
Newark to London City flights
Newark to Stansted flights
Boston to Stansted flights
Newark to Luton flights
George Bush Intcntl to Heathrow flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
O'Hare Intl to Gatwick flights
Los Angeles to Stansted flights
Minneapolis to Heathrow flights
San Francisco to Gatwick flights
Reagan-National to Gatwick flights
O'Hare Intl to London City flights
Dallas/Fort Worth to Gatwick flights
Los Angeles to London City flights
Tampa to Heathrow flights
O'Hare Intl to Stansted flights
Charlotte to Heathrow flights
San Francisco to London City flights
Orlando to Gatwick flights
Seattle to Gatwick flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Maine to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Maine today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Maine to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Maine to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Maine to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Maine shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Maine to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.