How long is the flight from Maine to London Heathrow Airport?

Airlines like United Airlines and Delta fly from Maine to London Heathrow Airport in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 3h 06m. Maine and London Heathrow Airport are separated by a distance of 3173 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

£89 is the cheapest one-way deal found within the past few days, from Air France. You may also be able to find cheap deals on Aegean Airlines and Eurowings, with prices starting from £97 and £148, respectively.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

The most popular flight routes from Maine to London Heathrow Airport are Boston Logan Intl - London Heathrow, Bangor - London Heathrow and Portland - London Heathrow.

What are the most popular airlines that fly from Maine to London Heathrow Airport?

Before booking your flight from Maine to London Heathrow Airport check out the most popular airlines for this route: MEA, Turkish Airlines or Air France.

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

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.

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.

£247+ Cheap Flights from Maine to London Heathrow Airport

Cheap flight deals from Maine to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 November 2026.

Thu 12/1106:30 -

1 stop10h 10m

Wed 18/1112:20 -

1 stop16h 23m

Deal found 5/11£633

Thu 12/1105:50 -

1 stop9h 45m

Wed 18/1109:00 -

2 stops19h 21m

Deal found 5/11£655

Sat 5/1206:00 -

1 stop19h 20m

Sat 12/1212:05 -

2 stops16h 19m

Deal found 7/11£656

Fri 4/1216:00 -

1 stop10h 15m

Fri 11/1210:00 -

2 stops18h 52m

Deal found 6/11£657

Sat 5/1215:45 -

1 stop13h 45m

Sat 12/1216:25 -

2 stops27h 40m

Deal found 5/11£657

Sun 15/1105:50 -

2 stops20h 20m

Thu 19/1109:00 -

2 stops19h 21m

Deal found 8/11£659

Tue 17/1114:05 -

2 stops14h 05m

Mon 23/1112:05 -

2 stops16h 16m

Deal found 8/11£660

Thu 12/1111:00 -

1 stop14h 20m

Wed 18/1109:00 -

2 stops30h 19m

Deal found 5/11£660

Wed 18/1115:45 -

2 stops13h 45m

Wed 2/1220:25 -

2 stops23h 40m

Deal found 8/11£660

Thu 12/1115:45 -

2 stops14h 00m

Wed 18/1117:50 -

2 stops26h 15m

Deal found 5/11£662

Thu 3/1211:23 -

2 stops18h 27m

Thu 10/1212:05 -

2 stops27h 34m

Deal found 4/11£663

Thu 12/1108:49 -

2 stops31h 11m

Wed 18/1113:00 -

2 stops39h 21m

Deal found 5/11£663

Best flights from Maine to Heathrow
Discover carefully curated flight deals from Maine to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Tue 23/215:14 -

1 stop14h 11m

Thu 25/206:50 -

2 stops21h 35m

Deal found 7/11£571

Sun 6/1216:00 -

1 stop11h 05m

Sun 13/1208:40 -

2 stops20h 41m

Deal found 6/11£657

Mon 15/211:25 -

2 stops39h 40m

Thu 18/206:50 -

2 stops32h 54m

Deal found 6/11£576

Fri 4/1212:49 -

2 stops16h 41m

Fri 11/1208:40 -

2 stops20h 41m

Deal found 6/11£660

Tue 8/1206:00 -

1 stop10h 20m

Fri 11/1213:00 -

2 stops35h 25m

Deal found 6/11£664

Tue 12/106:00 -

1 stop20h 15m

Tue 19/108:40 -

2 stops19h 00m

Deal found 8/11£667

Thu 21/115:14 -

1 stop12h 56m

Wed 27/106:50 -

2 stops19h 13m

Deal found 9/11£666

Thu 21/106:00 -

2 stops20h 55m

Wed 27/106:30 -

2 stops21h 56m

Deal found 8/11£670

Tue 2/211:30 -

1 stop17h 55m

Tue 9/209:00 -

2 stops30h 44m

Deal found 5/11£669

Mon 19/406:00 -

1 stop20h 25m

Wed 28/406:15 -

2 stops20h 46m

Deal found 8/11£675

Thu 10/1216:00 -

1 stop11h 05m

Tue 22/1211:35 -

1 stop16h 32m

Deal found 4/11£678

Thu 8/408:00 -

2 stops18h 25m

Tue 13/406:50 -

2 stops20h 14m

Deal found 5/11£706

Tue 8/1212:49 -

2 stops14h 16m

Fri 11/1210:00 -

2 stops18h 52m

Deal found 6/11£679

Thu 10/1216:00 -

1 stop12h 25m

Sun 20/1217:20 -

2 stops24h 16m

Deal found 4/11£682

Thu 8/406:00 -

1 stop19h 20m

Tue 13/406:30 -

2 stops20h 31m

Deal found 5/11£705

Find flight deals from Maine to Heathrow

Round-trip from	£571
One-way from	£247
Popular in	July
Cheapest in	February
Average price	£647

United Airlines
23/2-25/2
3 total stops
35h 47m total
Maine to London

Search Deals

United Airlines
31/3-31/12
1 total stop
10h 25m total
Maine to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£90 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Wed 31/3

06:00-21:25

1 stop10h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£247

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Wed 10/3

06:00-06:25

1 stop19h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Wed 31/3

06:00-07:25

1 stop20h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

Fastest return journey

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Mon 15/3

17:51-07:50

1 stop9h 59m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Wed 31/3

06:30-08:30

2 stops21h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 23/11

14:05-09:00

1 stop13h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£260

BangorLondon

BGR Bangor - LHR London Heathrow

BGRLHR

Bangor

Thu 26/11

06:23-06:40

2 stops19h 17m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£260

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 23/11

05:30-05:55

2 stops19h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£260

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Mon 23/11

08:49-06:30

3 stops16h 41m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£267

PortlandLondon

PWM Portland - LHR London Heathrow

PWMLHR

Portland

Tue 23/2

15:14-10:25

1 stop14h 11m

London Heathrow

Thu 25/2

06:50-23:25

2 stops21h 35m

£571

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 24 resultsSorted by cheapest first

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.

PWM-LHR

BGR-LHR

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

USME-LHR

PWM-LHR

BGR-LHR

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Maine to London Heathrow Airport?
Airlines like United Airlines and Delta fly from Maine to London Heathrow Airport in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 3h 06m. Maine and London Heathrow Airport are separated by a distance of 3173 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Maine to London Heathrow Airport one-way?
£89 is the cheapest one-way deal found within the past few days, from Air France. You may also be able to find cheap deals on Aegean Airlines and Eurowings, with prices starting from £97 and £148, respectively.
What are the most popular routes from Maine to London Heathrow Airport?
The most popular flight routes from Maine to London Heathrow Airport are Boston Logan Intl - London Heathrow, Bangor - London Heathrow and Portland - London Heathrow.
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.

See more FAQs

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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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Cheap flights from Maine to London Heathrow Airport from £247

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Maine to Heathrow

Cheapest flights from Maine to HeathrowExplore 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 November 2026.

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 November 2026.

Best flights from Maine to HeathrowDiscover carefully curated flight deals from Maine to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Discover carefully curated flight deals from Maine to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Last-minute flights from Maine to HeathrowDiscover last-minute flight deals from Maine to Heathrow. Data last updated 9 November 2026 and is based on user searches.

Discover last-minute flight deals from Maine to Heathrow. Data last updated 9 November 2026 and is based on user searches.

One-way flights from Maine to HeathrowSearch for one-way flight options from Maine to Heathrow. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.

Search for one-way flight options from Maine to Heathrow. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.

Find flight deals from Maine to Heathrow

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Best time to book a flight from Maine to Heathrow

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Related info for your journey

How long is the flight from Maine to London Heathrow Airport?

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

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?

How can I find direct flights from Maine to Heathrow?

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

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Maine to Heathrow

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

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Maine to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 November 2026.

Maine and Heathrow flights

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

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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 November 2026.

Best flights from Maine to Heathrow
Discover carefully curated flight deals from Maine to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Last-minute flights from Maine to Heathrow
Discover last-minute flight deals from Maine to Heathrow. Data last updated 9 November 2026 and is based on user searches.

One-way flights from Maine to Heathrow
Search for one-way flight options from Maine to Heathrow. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.