£343 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 19/5. 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Maine, as well as popular online travel agencies
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Flight Deals

Cheap Flights from London to Maine

Cheapest return prices found by our users on KAYAK in the last 72 hours
Portland
Portland1 stop£538
Bangor
Bangor2 stops£692
Portland
Portland1 stop£538
Bangor
Bangor2 stops£692

Book Cheap London to Maine Plane Tickets

 
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

Tue, 8 Sep - Tue, 29 Sep
ITA Airways Logo
16:30 - 13:40
LHR
-
BOS
26h 10m
1 stop
ITA Airways Logo
17:05 - 09:40
BOS
-
LHR
11h 35m
1 stop
£457ITA Airways
Mon, 1 Jun - Mon, 8 Jun
Multiple Airlines Logo
21:50 - 14:45
LTN
-
BOS
21h 55m
2 stops
Multiple Airlines Logo
16:45 - 21:05
BOS
-
LTN
23h 20m
2 stops
£458Multiple Airlines
Thu, 14 May - Thu, 12 Nov
LEVEL Logo
13:35 - 21:05
LGW
-
BOS
12h 30m
1 stop
LEVEL Logo
22:40 - 14:40
BOS
-
LGW
11h 00m
1 stop
£458LEVEL
Tue, 1 Sep - Mon, 7 Sep
Icelandair Logo
13:05 - 18:50
LHR
-
BOS
10h 45m
1 stop
Icelandair Logo
23:00 - 20:20
BOS
-
LHR
16h 20m
1 stop
£459Icelandair
Tue, 7 Jul - Wed, 15 Jul
LEVEL Logo
16:50 - 21:05
LGW
-
BOS
33h 15m
1 stop
LEVEL Logo
22:55 - 10:15
BOS
-
LGW
30h 20m
1 stop
£460LEVEL
Tue, 1 Sep - Thu, 10 Sep
Icelandair Logo
13:05 - 21:45
LHR
-
BOS
13h 40m
1 stop
Icelandair Logo
20:50 - 11:55
BOS
-
LHR
10h 05m
1 stop
£463Icelandair
Fri, 15 May - Mon, 2 Nov
JetBlue Logo
08:15 - 18:16
LHR
-
BOS
15h 01m
1 stop
JetBlue Logo
19:10 - 06:55
BOS
-
LHR
6h 45mdirect
£466JetBlue
Wed, 27 May - Wed, 3 Jun
JetBlue Logo
08:15 - 23:58
LHR
-
PWM
20h 43m
1 stop
JetBlue Logo
14:37 - 20:45
PWM
-
LHR
25h 08m
1 stop
£538JetBlue
Sat, 19 Sep - Wed, 30 Sep
United Airlines Logo
09:00 - 23:12
LHR
-
BGR
19h 12m
2 stops
United Airlines Logo
12:05 - 09:20
BGR
-
LHR
16h 15m
1 stop
£693United Airlines
Sat, 19 Sep - Wed, 30 Sep
United Airlines Logo
12:00 - 23:12
LHR
-
BGR
16h 12m
1 stop
United Airlines Logo
12:05 - 08:20
BGR
-
LHR
15h 15m
1 stop
£716United Airlines
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 return flight from London to Maine?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Maine departing in May.

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 October, when tickets cost £119 (return) on average. On the other hand, the most expensive months are January and April, when the average cost of return tickets is £545 and £536 respectively.

Good to know - Cheap tickets from London to Maine

Low seasonFebruary
Cheapest flight£343
Best time to beat the crowds (34% less expensive on average)
Most popular time to fly and prices are also 25% lower on average.
Flight from London City 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.

Reviews of the top 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.
7.4
United AirlinesOverall score based on 9684 reviews
6.6Food
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

10.0 ExcellentEirene, May 2026
YYZ - EWR
Read more United Airlines reviews

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Seats were not super comfortable and food was not good at all. If I had a chance I would definitely fly a different airline. Of course they are better than any budget airline, but not by much.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Flight crew was super friendly and helpful. Food was frequent and honestly pretty good. Plenty of on-board entertainment. Economy seats are super cramped for such a long flight, but the crew allowed people to get up and stretch, and kids could wander with their parents, so we all made it work. Overall a very good experience.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Right now I’m still in Jamaica waiting on a flight to New York which I should be in New York from the 30th and I’m here in Jamaica

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Boarding was done extremely poorly, with huge crowds gate loiterers blocking people from boarding, multiple lines of people trying to merge into one line. One of the male flight attendants who was doing drink service was not happy about having to let a passenger back to their seat and was unnecessarily sassy about it. I thought he was pretty entitled and not a great ambassador for JetBlue

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

I purchased ticket so our daughter ( a minor) can sit next to her mother. No help at gate after kayak insisted that this could be done. She ended sitting by herself

Flight was as expected. But it was delayed an hour. Also, my luggage got damaged. So that sucked especially since the damage made navigating the airport difficult. Walking to get ground transportation is sooo far away now and my checked bag was difficult to carry.

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.