Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Maine to London from £145

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to London departing on 22/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Maine to London

Cheap return flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
20:00 - 07:50
BOS
-
LHR
6h 50mdirect
Virgin Atlantic Logo
13:05 - 16:00
LHR
-
BOS
7h 55mdirect
£376Virgin Atlantic
Sa, 17 Jan - Fr, 23 Jan
JetBlue Logo
19:12 - 06:55
BOS
-
LHR
6h 43mdirect
JetBlue Logo
09:20 - 13:16
LHR
-
BOS
7h 56mdirect
£377JetBlue
Fr, 23 Jan - Mo, 9 Mrz
JetBlue Logo
19:12 - 06:55
BOS
-
LHR
6h 43mdirect
JetBlue Logo
09:20 - 12:16
LHR
-
BOS
7h 56mdirect
£378JetBlue
Mo, 12 Jan - Di, 20 Jan
Multiple Airlines Logo
18:40 - 20:35
BOS
-
LHR
20h 55m1 stop
Multiple Airlines Logo
19:15 - 18:35
LHR
-
BOS
28h 20m1 stop
£378Multiple Airlines
Di, 6 Jan - Di, 13 Jan
Aer Lingus Logo
19:25 - 08:05
BOS
-
LHR
8h 40m1 stop
Aer Lingus Logo
09:50 - 15:30
LHR
-
BOS
10h 40m1 stop
£379Aer Lingus
Sa, 28 Mrz - Sa, 4 Apr
Multiple Airlines Logo
19:34 - 10:40
BOS
-
LHR
10h 06m1 stop
Multiple Airlines Logo
13:45 - 19:55
LHR
-
BOS
11h 10m1 stop
£380Multiple Airlines
So, 26 Apr - Mi, 13 Mai
British Airways Logo
19:15 - 07:00
BOS
-
LHR
6h 45mdirect
British Airways Logo
19:10 - 21:55
LHR
-
BOS
7h 45mdirect
£382British Airways
Fr, 9 Jan - Di, 13 Jan
Aer Lingus Logo
19:25 - 09:15
BOS
-
LHR
8h 50m1 stop
Aer Lingus Logo
09:50 - 15:30
LHR
-
BOS
10h 40m1 stop
£383Aer Lingus
Do, 15 Jan - Mo, 11 Mai
Delta Logo
16:34 - 06:50
BGR
-
LHR
33h 16m2 stops
Delta Logo
06:30 - 12:25
LHR
-
BGR
34h 55m2 stops
£465Delta
So, 11 Jan - Mo, 19 Jan
Delta Logo
12:20 - 09:20
PWM
-
LHR
16h 00m2 stops
Delta Logo
10:00 - 00:20
LHR
-
PWM
19h 20m2 stops
£474Delta
Mo, 12 Jan - Mo, 19 Jan

British Airways flights from Maine to London Heathrow Airport

Our best British Airways deals on Maine to London Heathrow Airport flight tickets
British Airways
31 Dec
BOS19:15Boston Logan Intl
6h 45m
LHR07:00London Heathrow
15 Jan
LHR13:30London Heathrow
7h 45m
BOS16:15Boston Logan Intl
£376
Find similar
British Airways
8 Jan
BOS19:15Boston Logan Intl
6h 45m
LHR07:00London Heathrow
11 Jan
LHR19:10London Heathrow
7h 45m
BOS21:55Boston Logan Intl
£382
Find similar
British Airways
26 Apr
BOS21:55Boston Logan Intl
6h 45m
LHR09:40London Heathrow
3 May
LHR11:00London Heathrow
7h 35m
BOS13:35Boston Logan Intl
£393
Find similar

KLM flights from Maine to London Heathrow Airport

Our best KLM deals on Maine to London Heathrow Airport flight tickets
KLM
31 Dec
BOS20:00Boston Logan Intl
6h 50m
LHR07:50London Heathrow
9 Jan
LHR09:40London Heathrow
7h 50m
BOS12:30Boston Logan Intl
£384
Find similar
KLM
31 Dec
BOS17:00Boston Logan Intl
10h 05m
1 stop
LHR08:05London Heathrow
9 Jan
LHR09:40London Heathrow
7h 50m
BOS12:30Boston Logan Intl
£388
Find similar
KLM
19 Mar
BOS15:50Boston Logan Intl
12h 00m
1 stop
LHR07:50London Heathrow
22 Mar
LHR06:30London Heathrow
11h 50m
1 stop
BOS14:20Boston Logan Intl
£390
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Maine to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 16 Dezember 2025.
Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sa 17/1

20:00-07:50

Nonstop6h 50m

London Heathrow

Fr 23/1

13:05-16:00

Nonstop7h 55m

£376

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fr 23/1

19:12-06:55

Nonstop6h 43m

London Heathrow

Mo 9/3

09:20-13:16

Nonstop7h 56m

£377

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mo 12/1

19:12-06:55

Nonstop6h 43m

London Heathrow

Di 20/1

09:20-12:16

Nonstop7h 56m

£378

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Di 6/1

18:40-20:35

1 stop20h 55m

London Heathrow

Di 13/1

19:15-18:35

1 stop28h 20m

£378

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sa 28/3

19:25-08:05

1 stop8h 40m

London Heathrow

Sa 4/4

09:50-15:30

1 stop10h 40m

£379

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

So 26/4

19:34-10:40

1 stop10h 06m

London Heathrow

Mi 13/5

13:45-19:55

1 stop11h 10m

£380

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fr 9/1

19:15-07:00

Nonstop6h 45m

London Heathrow

Di 13/1

19:10-21:55

Nonstop7h 45m

£382

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Do 15/1

19:25-09:15

1 stop8h 50m

London Heathrow

Mo 11/5

09:50-15:30

1 stop10h 40m

£383

BangorLondon

BGR - LHR

BGRLHR

Bangor

So 11/1

16:34-06:50

2 stops33h 16m

London Heathrow

Mo 19/1

06:30-12:25

2 stops34h 55m

£465

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mo 12/1

12:20-09:20

2 stops16h 00m

London Heathrow

Mo 19/1

10:00-00:20

2 stops19h 20m

£474

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Maine to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, October is the cheapest month to fly from Maine to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £404. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Maine averaging around £431.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Maine is on a Monday. momondo users have found tickets for Monday departures for as low as £481. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £590.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Maine to London Heathrow Airport in the evening for as low as £508. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £547 on average. Flights to London Heathrow Airport from Maine in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to London Heathrow Airport from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £475 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Maine for as low as £443 on momondo.

Cheap Maine to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to London Heathrow Airport

Fastest flight time

6h 30m

Direct flights

Every day
The fastest flight from Maine to London Heathrow Airport takes 6h 30m
Direct flights go from Maine to London Heathrow Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Maine to London Heathrow Airport?

    Prices for flights from Maine to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from Maine to London Heathrow Airport?

  • How old do you have to be to fly from Maine to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Maine to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Swindon
Stratford-upon-Avon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Poole
Guildford
Swanage
Hayes
Chelmsford
Dover
Worthing

Why use momondo?

Why should I use momondo to find a flight deal from Maine to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Maine to London for you.

Can I find flights from Maine to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Maine which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Maine to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Maine to London.

I’m not ready to book a flight from Maine to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Maine to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Do 15/1
Do 22/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London