£322 Find Cheap Flights from London Heathrow Airport to Maine

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Maine departing on 30/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Maine.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Maine.
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Cheap Flights from Heathrow to Maine

Cheapest return prices found by our users on KAYAK in the last 72 hours
Boston
Boston2 stops£422
Bangor
Bangor2 stops£618
Boston
Boston2 stops£422
Bangor
Bangor2 stops£618

Book Cheap Heathrow to Maine Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Maine 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.

Recent return flight deals from Heathrow to Maine

Mon, 12 Jan - Mon, 19 Jan
United Airlines Logo
07:30 - 17:14
LHR
-
BOS
14h 44m2 stops
United Airlines Logo
12:08 - 06:40
BOS
-
LHR
13h 32m2 stops
£422United Airlines
Sun, 11 Jan - Sun, 18 Jan
Scandinavian Airlines Logo
06:40 - 15:50
LHR
-
BOS
14h 10m2 stops
Scandinavian Airlines Logo
17:35 - 16:00
BOS
-
LHR
17h 25m1 stop
£423Scandinavian Airlines
Sat, 7 Feb - Sun, 15 Feb
British Airways Logo
06:15 - 15:15
LHR
-
BOS
14h 00m1 stop
British Airways Logo
18:55 - 06:30
BOS
-
LHR
6h 35mdirect
£424British Airways
Mon, 26 Jan - Mon, 2 Feb
United Airlines Logo
06:50 - 18:32
LHR
-
BOS
16h 42m2 stops
United Airlines Logo
19:28 - 11:05
BOS
-
LHR
10h 37m1 stop
£425United Airlines
Sat, 24 Jan - Mon, 9 Feb
Scandinavian Airlines Logo
17:30 - 15:50
LHR
-
BOS
27h 20m2 stops
Scandinavian Airlines Logo
17:35 - 16:00
BOS
-
LHR
17h 25m1 stop
£425Scandinavian Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
06:50 - 14:52
LHR
-
BOS
13h 02m2 stops
Multiple Airlines Logo
15:35 - 07:10
BOS
-
LHR
10h 35m1 stop
£426Multiple Airlines
Wed, 28 Jan - Wed, 4 Feb
British Airways Logo
11:25 - 19:50
LHR
-
BOS
13h 25m1 stop
British Airways Logo
07:30 - 19:00
BOS
-
LHR
6h 30mdirect
£428British Airways
Mon, 12 Jan - Mon, 19 Jan
Multiple Airlines Logo
10:15 - 22:54
LHR
-
PWM
17h 39m1 stop
Multiple Airlines Logo
12:40 - 07:50
PWM
-
LHR
14h 10m1 stop
£539Multiple Airlines
Mon, 12 Jan - Mon, 19 Jan
American Airlines Logo
13:30 - 22:54
LHR
-
PWM
14h 24m2 stops
American Airlines Logo
12:46 - 07:50
PWM
-
LHR
14h 04m2 stops
£559American Airlines
Tue, 6 Jan - Tue, 13 Jan
KLM Logo
16:35 - 15:54
LHR
-
BGR
28h 19m1 stop
KLM Logo
13:07 - 08:05
BGR
-
LHR
13h 58m1 stop
£877KLM
Booking Insights

KAYAK's insights & trends for Heathrow to Maine flights

Get data-powered insights and trends into flights from Heathrow to Maine to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London Heathrow Airport to Maine?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Maine, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Maine is February, when tickets cost £401 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of return tickets is £557 and £548 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Maine?

The average price of all round-trip flights from London Heathrow Airport to Maine clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Maine on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from London Heathrow Airport to Maine. For your return ticket, we recommend flying on a Monday and avoiding Saturdays for the best deals.

How far in advance should I book a flight from London Heathrow Airport to Maine?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Maine, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London Heathrow Airport to Maine, you should book around 2 weeks before departure, which saves you about 33% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Maine

Low seasonFebruary
Cheapest flight£322
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flight from London Heathrow Airport to Boston

FAQs - booking Maine flights

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

    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 London Heathrow Airport to Maine.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Maine is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Maine?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Maine with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Maine?

    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 from London Heathrow Airport to Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Maine?

    The cheapest time of day to fly to Maine is generally in the afternoon, when retur flights cost £497 on average. Morning departures are around 3% more expensive than evening flights, on average. The most expensive time of day to fly to Maine is generally at night, which is peak travel time and where the average cost of a ticket is £683.

Reviews of the top 5 airlines flying from Heathrow to Maine

 
See real verified KAYAK customer reviews for airlines flying from London to Maine. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Maine? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1430 reviews
7.2Food
7.1Entertainment
7.8Boarding
7.6Comfort
8.4Crew
Airline reviews

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

8.0 ExcellentKevin, Nov 2025
AMS - BOD
Read more KLM reviews

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Staff on board was excellent. Positive upbeat helpful- like it used to be.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

The food is terrible. The same pasta or chicken with bad taste and presentation

United have really come back. Airport and boarding process is clear and good, app and information also very good

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

Qatar Airways only had spicy meals on the menu in economy class. You might want to get food in the airport before boarding.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Friendly crew. Poor food service maybe due to full flight. All in all, you get what you pay for.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

Everything you need to know for your flight from Heathrow to Maine

Information on your arrival and departure airports