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

Airlines like KLM, United Airlines, and Delta fly from Maine to London Heathrow Airport in about 6h 35m. The time it takes to get you to your destination can typically vary by up to 15h. Maine and London Heathrow Airport are separated by a distance of 3254 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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, Portland - London Heathrow and Bangor - 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.

£203+ Cheap Flights from Maine to London Heathrow Airport

Cheap flight deals from Maine to Heathrow

Enter your travel dates to find the best prices.

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Best

Direct

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 14 September 2026.

Mon 30/1119:50 -

1 stop10h 00m

Fri 4/1220:35 -

1 stop26h 15m

Deal found 12/9£376

Wed 11/1121:20 -

1 stop9h 05m

Wed 18/1108:50 -

1 stop10h 05m

Deal found 12/9£460

Mon 30/1119:50 -

2 stops14h 45m

Fri 4/1207:50 -

2 stops15h 00m

Deal found 12/9£480

Thu 1/1017:40 -

1 stop19h 00m

Mon 12/1021:05 -

2 stops23h 30m

Deal found 11/9£494

Thu 12/1121:20 -

1 stop13h 15m

Tue 17/1112:10 -

1 stop11h 55m

Deal found 12/9£497

Thu 22/1017:50 -

1 stop19h 40m

Mon 26/1021:05 -

2 stops23h 40m

Deal found 13/9£503

Thu 12/1107:30 -

Nonstop6h 30m

Tue 17/1110:45 -

1 stop12h 40m

Deal found 12/9£506

Tue 22/918:50 -

1 stop10h 10m

Wed 30/908:30 -

2 stops17h 56m

Deal found 13/9£507

Wed 7/1020:05 -

Nonstop6h 55m

Wed 14/1014:00 -

1 stop14h 59m

Deal found 11/9£508

Wed 7/1015:35 -

1 stop9h 55m

Mon 12/1011:05 -

2 stops34h 41m

Deal found 12/9£509

Fri 6/1118:45 -

Nonstop6h 40m

Tue 10/1111:25 -

1 stop11h 35m

Deal found 11/9£509

Mon 2/1119:50 -

1 stop10h 00m

Sat 7/1112:15 -

1 stop10h 35m

Deal found 12/9£510

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 14 September 2026.

Wed 11/1120:00 -

Nonstop6h 50m

Sun 15/1108:40 -

1 stop10h 33m

Deal found 11/9£528

Sat 3/1018:25 -

1 stop21h 35m

Sat 10/1016:25 -

1 stop30h 15m

Deal found 13/9£531

Thu 29/1020:15 -

Nonstop6h 35m

Wed 11/1112:55 -

Nonstop7h 55m

Deal found 10/9£534

Thu 1/1020:05 -

Nonstop6h 55m

Thu 8/1020:10 -

Nonstop7h 25m

Deal found 10/9£540

Sat 13/318:00 -

1 stop22h 35m

Sat 20/306:00 -

1 stop13h 40m

Deal found 9/9£546

Sun 10/117:35 -

2 stops23h 00m

Wed 20/113:55 -

2 stops55h 00m

Deal found 10/9£548

Sun 31/122:11 -

Nonstop6h 44m

Sun 7/206:20 -

1 stop13h 00m

Deal found 13/9£534

Wed 16/1219:10 -

Nonstop6h 40m

Wed 30/1208:40 -

1 stop10h 40m

Deal found 10/9£535

Mon 16/1111:00 -

1 stop16h 25m

Wed 18/1106:50 -

2 stops32h 29m

Deal found 13/9£554

Wed 7/1016:47 -

2 stops14h 18m

Wed 14/1006:30 -

2 stops22h 40m

Deal found 10/9£549

Wed 7/1020:25 -

1 stop9h 20m

Sun 11/1006:30 -

1 stop11h 45m

Deal found 9/9£551

Mon 16/1115:41 -

2 stops13h 24m

Wed 18/1109:10 -

2 stops17h 41m

Deal found 13/9£571

Tue 3/1116:15 -

1 stop10h 00m

Thu 12/1115:50 -

1 stop13h 29m

Deal found 11/9£551

Sun 4/1019:05 -

Nonstop6h 40m

Thu 15/1016:20 -

1 stop11h 48m

Deal found 9/9£559

Fri 6/1120:00 -

Nonstop6h 50m

Sat 14/1108:40 -

1 stop10h 33m

Deal found 11/9£565

Fri 23/1016:10 -

1 stop13h 10m

Fri 6/1114:45 -

2 stops29h 45m

Deal found 10/9£588

Fri 23/1016:10 -

1 stop10h 05m

Thu 5/1114:45 -

2 stops29h 45m

Deal found 11/9£588

Sun 25/1016:15 -

1 stop10h 05m

Sun 1/1110:50 -

1 stop15h 10m

Deal found 10/9£588

Sat 16/114:35 -

1 stop24h 35m

Sat 13/306:30 -

2 stops14h 43m

Deal found 12/9£594

Tue 8/1219:10 -

Nonstop6h 40m

Thu 14/108:40 -

1 stop10h 43m

Deal found 13/9£602

Thu 1/1016:15 -

1 stop10h 00m

Sun 18/1008:20 -

1 stop12h 10m

Deal found 13/9£625

Sat 26/916:15 -

1 stop11h 35m

Sat 10/1008:20 -

1 stop12h 10m

Deal found 12/9£625

Find flight deals from Maine to Heathrow

Round-trip from	£376
One-way from	£203
Popular in	July
Cheapest in	December
Average price	£554

Icelandair
30/11-4/12
2 total stops
36h 15m total
Maine to London

Search Deals

Icelandair
13/10-31/12
1 total stop
10h 05m total
Maine to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£94 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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

Fastest return journey

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 11/11

19:15-06:50

Nonstop6h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 3/12

19:10-06:50

Nonstop6h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£218

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 7/10

15:35-10:00

1 stop13h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£220

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 10/12

19:10-06:50

Nonstop6h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 29/10

15:41-10:50

2 stops15h 09m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 15/10

13:35-10:40

2 stops16h 05m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 12/11

13:29-09:10

2 stops14h 41m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sat 17/10

13:35-10:40

2 stops16h 05m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Mon 9/11

08:00-07:50

1 stop18h 50m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sat 14/11

13:37-07:20

2 stops12h 43m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£221

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 48 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.

BOS-LHR

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

BOS-LHR

PWM-LHR

BGR-LHR

How much does it cost for a return flight from Maine to London Heathrow Airport?

Airfare is below average for this route at the moment.

Maine to London Heathrow Airport flights typically cost between £686 and £866 in November.
The cheapest return price found within the last 5 days was £546 on Delta (10 Nov–24 Nov).

Related info for your journey

How long is the flight from Maine to London Heathrow Airport?
Airlines like KLM, United Airlines, and Delta fly from Maine to London Heathrow Airport in about 6h 35m. The time it takes to get you to your destination can typically vary by up to 15h. Maine and London Heathrow Airport are separated by a distance of 3254 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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, Portland - London Heathrow and Bangor - 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 £203

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/10. 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 14 September 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 14 September 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 14 September 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 14 September 2026.

Direct flights from Maine to HeathrowExplore direct flight options from Maine to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 September 2026.

Explore direct flight options from Maine to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 September 2026.

Last-minute flights from Maine to HeathrowDiscover last-minute flight deals from Maine to Heathrow. Data last updated 14 September 2026 and is based on user searches.

Discover last-minute flight deals from Maine to Heathrow. Data last updated 14 September 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 14 September 2026.

Search for one-way flight options from Maine to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 September 2026.

Find flight deals from Maine to Heathrow

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Use the filters below to find and compare flights from Maine to London Heathrow Airport that are best for you.

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.

Cheapflights Insights

How much does it cost for a return flight from Maine to London Heathrow Airport?

Airfare is below average for this route at the moment.

Maine to London Heathrow Airport flights typically cost between £686 and £866 in November.The cheapest return price found within the last 5 days was £546 on Delta (10 Nov–24 Nov).

Related info for your journey

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

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

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Alternative routes for Maine to Heathrow

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Complete your trip

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Other flights to Heathrow

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

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

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 14 September 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 14 September 2026.

Direct flights from Maine to Heathrow
Explore direct flight options from Maine to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 September 2026.

Last-minute flights from Maine to Heathrow
Discover last-minute flight deals from Maine to Heathrow. Data last updated 14 September 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 14 September 2026.

Maine to London Heathrow Airport flights typically cost between £686 and £866 in November.
The cheapest return price found within the last 5 days was £546 on Delta (10 Nov–24 Nov).