£128 Find Cheap Flights from London 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 London to Maine departing on 15/9. 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

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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Best Maine Flight Deals from London

Cheapest return prices found by our users on KAYAK in the last 72 hours
Portland
Portland1 stop£592
Bangor
Bangor2 stops£499
Portland
Portland1 stop£592
Bangor
Bangor2 stops£499

Cheap Flights from London to Maine

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

Fri, 8 Aug - Fri, 15 Aug
JetBlue Logo
08:25 - 11:04LHR-BOS
7h 39mdirect
JetBlue Logo
13:59 - 09:30BOS-LHR
14h 31m1 stop
£162JetBlue
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Fri, 8 Aug - Wed, 13 Aug
JetBlue Logo
08:25 - 11:04LHR-BOS
7h 39mdirect
JetBlue Logo
18:40 - 06:30BOS-LHR
6h 50mdirect
£199JetBlue
Find Deal
Tue, 2 Sep - Mon, 8 Sep
JetBlue Logo
12:10 - 15:03LGW-BOS
7h 53mdirect
JetBlue Logo
21:48 - 09:35BOS-LGW
6h 47mdirect
£200JetBlue
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Mon, 10 Nov - Sat, 15 Nov
 Logo
10:10 - 20:55LGW-BOS
15h 45m1 stop
 Logo
22:40 - 18:50BOS-LGW
15h 10m1 stop
Mon, 8 Sep - Mon, 15 Sep
KLM Logo
06:30 - 13:40LHR-BOS
12h 10m1 stop
KLM Logo
20:15 - 08:05BOS-LHR
6h 50mdirect
£320KLM
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Mon, 1 Dec - Sat, 13 Dec
Icelandair Logo
11:55 - 17:45LGW-BOS
10h 50m1 stop
Icelandair Logo
20:00 - 10:55BOS-LGW
9h 55m1 stop
£324Icelandair
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Sun, 31 Aug - Sun, 7 Sep
Icelandair Logo
15:40 - 11:35LGW-BOS
24h 55m1 stop
Icelandair Logo
23:35 - 11:45BOS-LGW
31h 10m1 stop
£325Icelandair
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Mon, 10 Nov - Sat, 22 Nov
United Airlines Logo
07:40 - 18:02LHR-BOS
15h 22m2 stops
United Airlines Logo
10:25 - 07:10BOS-LHR
15h 45m2 stops
£331United Airlines
Find Deal
Fri, 12 Sep - Sat, 20 Sep
United Airlines Logo
08:40 - 19:55LHR-BOS
16h 15m1 stop
United Airlines Logo
18:30 - 09:35BOS-LHR
10h 05m1 stop
£332United Airlines
Find Deal
Sat, 30 Aug - Sat, 6 Sep
Finnair Logo
08:00 - 20:36LHR-PWM
17h 36m2 stops
Finnair Logo
12:27 - 07:45PWM-LHR
14h 18m2 stops
£650Finnair
Find Deal
Booking Insights

KAYAK's insights & trends for London to Maine flights

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

How much is a round-trip flight from London to Maine?

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 to Maine is September, when tickets cost £540 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of return tickets is £832 and £766 respectively.


Good to know - Cheap tickets from London to Maine

Low seasonFebruary
High seasonJuly
Cheapest flight£128
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (9% more expensive on average)
Flight from London Gatwick Airport to Boston

FAQs - booking Maine flights

  • How does KAYAK find such low prices on flights from London 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 to Maine.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London 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 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 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 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 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 evening, when retur flights cost £752 on average. Morning departures are around 25% more expensive than evening flights, on average. The most expensive time of day to fly to Maine is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £1,135.

Reviews of the top 5 airlines flying from London 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 London 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.
7.8
KLMOverall score based on 1374 reviews
7.7Comfort
7.8Boarding
7.3Food
8.4Crew
7.1Entertainment
Airline reviews

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

6.0 GoodKathleen P, Jun 2025EDI - AMS
Read more KLM reviews

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

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.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

More racist flight attandants maybe because i sm an attracticted darkskin latino man but once again bad flight attamdants they ignored me the whole flight even the woman sitting next to me notice how rude they were towards me i really never want to fly united or american airlines they alawsys have the rudesslt and racist flight attandants

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

flight cancelled after 2 delays. left us sitting in JFK at 1am. no customer service to assist rebooking.

To not have food or proper snacks on a 5 hour flight was the worst.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

Spend hours delayed with no food, water anything sitting on the aieplane with no ability to eat or use the restroom. My entire experience was the absolute worst. I will never fly jet Blue again.

It would have been nice if they had offered more than one set of snacks

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

You get what you pay for with JetBlue. Every little thing costs more, you are nickel and dimed until the end. Entertainment doesn’t function. Flight attendants do the bare minimum.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

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

Cabin class types available on flights to Maine

Cabin classes available on flights to Maine. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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