Cheap flights from Maine to London Heathrow Airport from £148

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
9 ott — 16 ott1
1 adult
1 adult, Economy

Cheap flight deals from Maine to Heathrow

Keep the following information in mind while searching for Maine to Heathrow flight deals. Data was last updated 9 settembre 2025.

Round-trip from

£334

One-way from

£148

Popular in

July

Cheapest in

October

Average price

£584
SWISS
  • SWISS
  • 19/10-21/10
  • 3 total stops
  • 31h 15m total
  • Maine to London
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 11/10
  • 1 total stop
  • 30h 35m total
  • Maine to London
Highest demand for flights based on searches. 17% potential increase in price (£101 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Maine to Heathrow

Cheapest flights from Maine to Heathrow
Explore the most affordable flight options available from Maine to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 settembre 2025.

dom 19/1017:05BOS - LHR
1 stop13h 20mSWISS
mar 21/1007:00LHR - BOS
2 stops17h 55mSWISS
Deal found 8/9£334
lun 6/1023:00BOS - LHR
1 stop29h 10mLEVEL
mer 22/1020:50LHR - BOS
1 stop29h 25mLEVEL
Deal found 7/9£335
ven 17/1022:00BOS - LHR
1 stop12h 40mMultiple Airlines
dom 19/1006:00LHR - BOS
1 stop14h 25mMultiple Airlines
Deal found 7/9£336
gio 13/1117:35BOS - LHR
2 stops41h 50mScandinavian Airlines
dom 16/1106:40LHR - BOS
2 stops14h 10mScandinavian Airlines
Deal found 7/9£338
mar 23/920:50BOS - LHR
1 stop9h 35mVirgin Atlantic
mar 7/1009:40LHR - BOS
Nonstop7h 45mVirgin Atlantic
Deal found 7/9£339
gio 13/1122:45BOS - LHR
1 stop13h 45mTAP AIR PORTUGAL
sab 22/1112:25LHR - BOS
1 stop12h 45mTAP AIR PORTUGAL
Deal found 7/9£340
mer 12/1118:05BOS - LHR
1 stop12h 20mTAP AIR PORTUGAL
dom 16/1112:25LHR - BOS
1 stop12h 45mTAP AIR PORTUGAL
Deal found 8/9£341
mer 1/1017:50BOS - LHR
1 stop10h 50mMultiple Airlines
ven 3/1007:00LHR - BOS
2 stops13h 25mMultiple Airlines
Deal found 7/9£342
mar 4/1118:05BOS - LHR
1 stop13h 35mTAP AIR PORTUGAL
dom 9/1112:25LHR - BOS
1 stop12h 45mTAP AIR PORTUGAL
Deal found 8/9£342
lun 13/1018:35BOS - LHR
1 stop9h 30mAer Lingus
ven 31/1010:00LHR - BOS
1 stop11h 50mAer Lingus
Deal found 8/9£343
mer 19/1118:05BOS - LHR
1 stop12h 20mTAP AIR PORTUGAL
mar 2/1206:00LHR - BOS
1 stop13h 35mTAP AIR PORTUGAL
Deal found 7/9£344
mer 15/1020:05BOS - LHR
2 stops13h 35mMultiple Airlines
ven 17/1007:00LHR - BOS
2 stops13h 25mMultiple Airlines
Deal found 6/9£345

Cheapflights Fare Finder

 
Customise your flight search to find flights from Maine to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 9 settembre 2025.
Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.

Fly from

Maine

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mer 1/10

20:15-08:05

Nonstop6h 50m

London Heathrow

mar 14/10

06:15-20:20

1 stop19h 05m

£353

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mer 29/10

21:00-07:50

Nonstop6h 50m

London Heathrow

ven 14/11

09:00-16:20

1 stop12h 20m

£353

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar 10/2

18:55-06:30

Nonstop6h 35m

London Heathrow

gio 26/2

19:10-21:55

Nonstop7h 45m

£359

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

dom 21/9

20:10-07:50

Nonstop6h 40m

London Heathrow

mar 30/9

08:55-11:15

Nonstop7h 20m

£359

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

ven 17/10

17:40-08:55

2 stops34h 15m

London Heathrow

lun 20/10

07:05-15:35

2 stops13h 30m

£363

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

ven 10/10

20:15-08:05

Nonstop6h 50m

London Heathrow

mer 5/11

06:20-16:20

1 stop15h 00m

£364

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

sab 4/10

22:45-10:30

Nonstop6h 45m

London Heathrow

mer 15/10

09:00-20:20

1 stop16h 20m

£364

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

ven 3/10

19:05-06:45

Nonstop6h 40m

London Heathrow

gio 9/10

11:30-20:25

1 stop13h 55m

£364

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

gio 6/11

20:00-07:50

Nonstop6h 50m

London Heathrow

mar 11/11

06:20-16:20

1 stop15h 00m

£364

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

gio 2/10

19:05-06:45

Nonstop6h 40m

London Heathrow

mar 14/10

11:30-20:20

1 stop13h 50m

£364

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 46 results
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Best time to book a flight from Maine to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Maine with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Maine to London Heathrow Airport

What is the cheapest month to book a flight from Maine to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £112). Flying from Maine to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ME to LHR?

Find hourly flight availability from Maine to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 settembre 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maine to London Heathrow Airport as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Maine to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Maine to London Heathrow Airport?

    Airlines like Delta, British Airways, and Finnair fly from Maine to London Heathrow Airport in about 6h 35m. The time it takes to get you to your destination is usually consistent. Maine and London Heathrow Airport are separated by a distance of 3254 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from Maine to London Heathrow Airport one-way?

    £165 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on JetBlue and KLM, with prices starting from £165 and £339, respectively.

  • What are the most popular routes from Maine to London Heathrow Airport?

  • Can I find deals for flights from Maine to Heathrow that include hotel bookings?

    Yes. In addition to deals on Maine to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Maine to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maine to Heathrow.

  • Can I find deals for business class flights from Maine to Heathrow?

    Yes. Cheapflights offers flight deals from Maine to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Maine to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £112). Flying from Maine to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Winchester
Chichester
Ipswich
Swindon
Dartford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Maine to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

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How does Cheapflights help users find flights from Maine to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Maine today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Maine to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Maine to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Maine to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Maine shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Maine to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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