£349 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 27/9. 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, 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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Cheap Flights from Heathrow to Maine

Cheapest return prices found by our users on KAYAK in the last 72 hours
Portland
Portland1 stop£552
Bangor
Bangor2 stops£633
Portland
Portland1 stop£552
Bangor
Bangor2 stops£633

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

Thu, 25 Jun - Wed, 1 Jul
British Airways Logo
11:30 - 19:45
LHR
-
BOS
13h 15m
1 stop
British Airways Logo
20:00 - 21:40
BOS
-
LHR
20h 40m
1 stop
£482British Airways
Sat, 18 Jul - Sat, 1 Aug
Lufthansa Logo
08:30 - 15:40
LHR
-
BOS
12h 10m
1 stop
Lufthansa Logo
19:27 - 10:40
BOS
-
LHR
10h 13m
1 stop
£483Lufthansa
Thu, 16 Jul - Thu, 23 Jul
British Airways Logo
10:05 - 12:35
LHR
-
BOS
7h 30mdirect
British Airways Logo
19:40 - 07:10
BOS
-
LHR
6h 30mdirect
£484British Airways
Mon, 17 Aug - Wed, 26 Aug
United Airlines Logo
08:40 - 19:55
LHR
-
BOS
16h 15m
1 stop
United Airlines Logo
11:00 - 05:55
BOS
-
LHR
13h 55m
1 stop
£485United Airlines
Fri, 7 Aug - Fri, 14 Aug
United Airlines Logo
12:10 - 19:55
LHR
-
BOS
12h 45m
1 stop
United Airlines Logo
19:23 - 10:40
BOS
-
LHR
10h 17m
1 stop
£485United Airlines
Sun, 28 Jun - Fri, 10 Jul
Lufthansa Logo
07:25 - 17:40
LHR
-
BOS
15h 15m
1 stop
Lufthansa Logo
20:05 - 20:45
BOS
-
LHR
19h 40m
1 stop
£486Lufthansa
Thu, 23 Jul - Mon, 27 Jul
American Airlines Logo
11:30 - 19:50
LHR
-
BOS
13h 20m
1 stop
American Airlines Logo
19:40 - 07:10
BOS
-
LHR
6h 30mdirect
£488American Airlines
Wed, 8 Jul - Mon, 13 Jul
JetBlue Logo
08:15 - 00:16
LHR
-
PWM
21h 01m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£552JetBlue
Wed, 8 Jul - Mon, 13 Jul
JetBlue Logo
08:15 - 00:16
LHR
-
PWM
21h 01m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£578JetBlue
Tue, 8 Sep - Tue, 22 Sep
Finnair Logo
18:05 - 15:41
LHR
-
BGR
26h 36m
2 stops
Finnair Logo
06:30 - 07:40
BGR
-
LHR
20h 10m
1 stop
£633Finnair
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.

How much is a return flight from London Heathrow Airport 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 Heathrow Airport to Maine departing in July.

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 July, when tickets cost £144 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is £737 and £725 respectively.

Find deals

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

Low seasonJanuary
Cheapest flight£349
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (12% 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.

Reviews of the top airline 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.
7.4
United AirlinesOverall score based on 9830 reviews
8.1Crew
7.1Entertainment
7.3Comfort
6.6Food
7.7Boarding
Airline reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

2.0 MediocreAnonymous, Jun 2026
ORD - BHM
Read more United Airlines reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

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

Information on your arrival and departure airports

London Heathrow Airport (LHR)