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Cheap flights from Maine to London from £129

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 21/8. 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
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Cheap return flights

Austrian Airlines Logo
17:10 - 21:40BOS-LHR
23h 30m1 stop
Austrian Airlines Logo
10:25 - 13:50LHR-BOS
32h 25m1 stop
£208Austrian Airlines
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ons, 1 okt - sön, 5 okt
Lufthansa Logo
18:30 - 09:35BOS-LHR
10h 05m1 stop
Lufthansa Logo
08:40 - 15:25LHR-BOS
11h 45m1 stop
£262Lufthansa
Find Deal
mån, 22 sep - ons, 24 sep
Logo
18:30 - 10:10BOS-LHR
10h 40m1 stop
Logo
06:50 - 14:30LHR-BOS
12h 40m2 stops
£264
Find Deal
mån, 22 sep - ons, 24 sep
Logo
18:30 - 11:25BOS-LHR
11h 55m1 stop
Logo
06:50 - 14:30LHR-BOS
12h 40m2 stops
£265
Find Deal
mån, 22 sep - ons, 24 sep
British Airways Logo
19:40 - 07:20BOS-LHR
6h 40mdirect
British Airways Logo
06:10 - 15:00LHR-BOS
13h 50m1 stop
£275British Airways
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fre, 19 sep - sön, 21 sep
Iberia Logo
20:05 - 07:50BOS-LHR
6h 45mdirect
Iberia Logo
20:50 - 21:15LHR-BOS
29h 25m1 stop
£276Iberia
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sön, 7 sep - mån, 8 sep
British Airways Logo
16:30 - 07:45BOS-LHR
10h 15m1 stop
British Airways Logo
06:10 - 15:00LHR-BOS
13h 50m1 stop
£278British Airways
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fre, 5 sep - sön, 7 sep
Air Canada Logo
12:15 - 09:35BOS-LHR
16h 20m2 stops
Air Canada Logo
06:50 - 14:30LHR-BOS
12h 40m2 stops
£278Air Canada
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mån, 22 sep - ons, 24 sep
Iberia Logo
16:30 - 07:45BOS-LHR
10h 15m1 stop
Iberia Logo
20:50 - 21:15LHR-BOS
29h 25m1 stop
£280Iberia
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sön, 7 sep - mån, 8 sep
Air Canada Logo
18:40 - 07:10BOS-LHR
31h 30m1 stop
Air Canada Logo
06:50 - 14:52LHR-BOS
13h 02m2 stops
£294Air Canada
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mån, 3 nov - tors, 6 nov

British Airways flights from Maine to London Heathrow Airport

Our best British Airways deals on Maine to London Heathrow Airport flight tickets
British Airways
19 Sept
BOS19:40Boston Logan Intl
6h 40m
LHR07:20London Heathrow
21 Sept
LHR06:10London Heathrow
13h 50m
1 stop
BOS15:00Boston Logan Intl
£275
Find similar
British Airways
5 Sept
BOS16:30Boston Logan Intl
10h 15m
1 stop
LHR07:45London Heathrow
7 Sept
LHR06:10London Heathrow
13h 50m
1 stop
BOS15:00Boston Logan Intl
£278
Find similar
British Airways
22 Sept
BOS22:00Boston Logan Intl
6h 35m
LHR09:35London Heathrow
24 Sept
LHR06:15London Heathrow
18h 35m
1 stop
BOS19:50Boston Logan Intl
£281
Find similar

TAP AIR PORTUGAL flights from Maine to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Maine to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
22 Sept
BOS22:40Boston Logan Intl
18h 20m
1 stop
LHR22:00London Heathrow
14 Dec
LHR06:00London Heathrow
19h 10m
1 stop
BOS20:10Boston Logan Intl
£318
Find similar
TAP AIR PORTUGAL
9 Oct
BOS22:25Boston Logan Intl
14h 20m
1 stop
LHR17:45London Heathrow
15 Oct
LHR06:00London Heathrow
13h 20m
1 stop
BOS14:20Boston Logan Intl
£320
Find similar
TAP AIR PORTUGAL
22 Oct
BOS22:40Boston Logan Intl
15h 10m
1 stop
LHR18:50London Heathrow
9 Nov
LHR08:15London Heathrow
16h 55m
1 stop
BOS20:10Boston Logan Intl
£320
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 7 augusti 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

ons 1/10

17:10-21:40

1 stop23h 30m

London Heathrow

sön 5/10

10:25-13:50

1 stop32h 25m

£208

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mån 22/9

18:30-09:35

1 stop10h 05m

London Heathrow

ons 24/9

08:40-15:25

1 stop11h 45m

£262

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mån 22/9

18:30-10:10

1 stop10h 40m

London Heathrow

ons 24/9

06:50-14:30

2 stops12h 40m

£264

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mån 22/9

18:30-11:25

1 stop11h 55m

London Heathrow

ons 24/9

06:50-14:30

2 stops12h 40m

£265

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

fre 19/9

19:40-07:20

Nonstop6h 40m

London Heathrow

sön 21/9

06:10-15:00

1 stop13h 50m

£275

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

sön 7/9

20:05-07:50

Nonstop6h 45m

London Heathrow

mån 8/9

20:50-21:15

1 stop29h 25m

£276

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

fre 5/9

16:30-07:45

1 stop10h 15m

London Heathrow

sön 7/9

06:10-15:00

1 stop13h 50m

£278

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mån 22/9

12:15-09:35

2 stops16h 20m

London Heathrow

ons 24/9

06:50-14:30

2 stops12h 40m

£278

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

sön 7/9

16:30-07:45

1 stop10h 15m

London Heathrow

mån 8/9

20:50-21:15

1 stop29h 25m

£280

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mån 3/11

18:40-07:10

1 stop31h 30m

London Heathrow

tors 6/11

06:50-14:52

2 stops13h 02m

£294

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, April 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 £541. The month of May is another great option to travel to London Heathrow Airport, with average flight prices from Maine averaging around £563.

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

Best price found

£129

Fastest flight time

6h 30m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Maine in the past 72 hours is £129. The best return flight deal from Maine to London Heathrow Airport found on momondo in the last 72 hours is £208.
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
Slough
Northampton
Maidstone
Southend-on-Sea
Swindon
Canterbury
Gatwick
Stratford-upon-Avon
Ipswich
Ilford
Guildford
Colchester
Dartford
Swanage
Hounslow
Worthing
Dover

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

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