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Heathrow

$244+ Cheap flights from Maine to Heathrow (LHR)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$559
(oojo)

One-way from

$244
(Air France)

Popular in

June

Cheapest in

November

Average price

$751
Provider with most accurate pricing for Portland-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Portland-London (LON) flights.
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From Maine to London Heathrow
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One-way flight from Maine to London Heathrow
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Highest demand for flights based on searches. 17% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 28, 2025.

This oojo deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/238:50 pmBOS - LHR
1 stop18h 30mIcelandair
Sat 5/109:25 pmLHR - BOS
1 stop19h 10mIcelandair
Deal found 3/27$559
This oojo deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:40 pmBOS - LHR
1 stop19h 50mScandinavian Airlines
Tue 8/266:40 amLHR - BOS
1 stop13h 55mScandinavian Airlines
Deal found 3/28$560
This Gotogate deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/206:10 pmBOS - LHR
1 stop21h 50mMultiple Airlines
Mon 4/288:25 pmLHR - BOS
1 stop26h 15mMultiple Airlines
Deal found 3/27$562
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:15 amBOS - LHR
Nonstop6h 30mBritish Airways
Sun 9/285:35 pmLHR - BOS
Nonstop7h 35mBritish Airways
Deal found 3/27$565
This Cheapflightsfares deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:04 pmBOS - LHR
1 stop9h 41mIberia
Wed 10/152:40 pmLHR - BOS
Nonstop7h 30mIberia
Deal found 3/28$569
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/287:00 amBOS - LHR
1 stop20h 10mUnited Airlines
Mon 3/319:30 amLHR - BOS
2 stops32h 24mUnited Airlines
Deal found 3/26$573
This Air Canada deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:40 pmBOS - LHR
2 stops15h 10mAir Canada
Wed 5/78:40 amLHR - BOS
2 stops14h 29mAir Canada
Deal found 3/27$576
This JetBlue deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/26:26 pmBOS - LHR
Nonstop7h 04mJetBlue
Thu 5/88:25 amLHR - BOS
Nonstop7h 31mJetBlue
Deal found 3/28$578
This Finnair deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/18:15 pmBOS - LHR
Nonstop6h 35mFinnair
Sun 4/68:55 amLHR - BOS
Nonstop7h 15mFinnair
Deal found 3/27$579
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/309:40 pmBOS - LHR
1 stop15h 10mSWISS
Tue 4/81:45 pmLHR - BOS
1 stop11h 10mSWISS
Deal found 3/27$585
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/210:45 pmBOS - LHR
Nonstop6h 45mDelta
Sun 5/1112:45 pmLHR - BOS
Nonstop7h 55mDelta
Deal found 3/28$588
This Lufthansa deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/158:05 pmBOS - LHR
1 stop16h 00mLufthansa
Thu 4/247:25 amLHR - BOS
1 stop15h 15mLufthansa
Deal found 3/27$595

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated March 28, 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

Wed 4/23

8:50 pm-8:20 pm

1 stop18h 30m

London Heathrow

Sat 5/3

9:25 pm-11:35 am

1 stop19h 10m

$558

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 4/23

6:10 pm-9:00 pm

1 stop21h 50m

London Heathrow

Sat 5/10

1:45 pm-7:55 pm

1 stop11h 10m

$559

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 4/26

5:30 pm-10:30 am

1 stop12h 00m

London Heathrow

Tue 5/13

9:15 am-7:50 pm

1 stop15h 35m

$562

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/27

9:40 pm-11:25 am

1 stop32h 45m

London Heathrow

Wed 4/30

9:00 am-5:40 pm

1 stop13h 40m

$563

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 5/1

10:20 am-6:35 am

2 stops15h 15m

London Heathrow

Mon 5/12

6:50 am-2:32 pm

2 stops12h 42m

$564

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/6

10:45 pm-10:30 am

Nonstop6h 45m

London Heathrow

Fri 4/11

6:15 pm-9:00 pm

Nonstop7h 45m

$568

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 5/11

7:25 pm-7:05 am

Nonstop6h 40m

London Heathrow

Sun 5/18

5:00 pm-10:49 pm

1 stop10h 49m

$569

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 4/29

7:25 am-6:55 pm

Nonstop6h 30m

London Heathrow

Sun 5/4

8:55 am-11:10 am

Nonstop7h 15m

$578

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 4/30

7:00 pm-6:45 am

Nonstop6h 45m

London Heathrow

Sun 5/11

12:45 pm-3:40 pm

Nonstop7h 55m

$588

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 4/15

8:05 pm-5:05 pm

1 stop16h 00m

London Heathrow

Wed 4/23

9:00 am-5:40 pm

1 stop13h 40m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 60 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 round-trip 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, November is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of $661). Flying from Maine to London Heathrow Airport in June is currently the most expensive (average of $1,115). 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 March 28, 2025.

When flying from Maine to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated March 28, 2025.
To help decide which airline to fly from Maine to London, see what other customers have to say about Delta, KLM and Azores Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Azores Airlines
7.6
Good
63 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,896 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    For one-way options, check prices for Air France. According to our data, you can fly for as low as $244. Users have also found prices from $245 and $253 on Icelandair and TAP AIR PORTUGAL, respectively.

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

    Most travelers choose Boston Logan Intl - London Heathrow, Portland - London Heathrow or Bangor - London Heathrow when deciding on the best route 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 vacation 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, November is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of $661). Flying from Maine to London Heathrow Airport in June is currently the most expensive (average of $1,115). 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

Traveling to a place near Maine?

Book flights to Maine if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Northampton
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
Boston to Heathrow flights
Newark to Gatwick flights
Baltimore to Heathrow flights
San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Newark to London City flights
Seattle to Heathrow flights
Stewart to Stansted flights
Boston to Gatwick flights
Atlanta to Heathrow flights
Miami to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Dulles Intl to London City flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
Hobby to Heathrow flights
Los Angeles to London City flights
Denver to Heathrow flights
Baltimore to Gatwick flights
Boston to London City flights
Orlando to Heathrow flights
Reagan-National to Gatwick flights
San Francisco to Gatwick flights
George Bush Intcntl to Heathrow flights
San Francisco to London City flights
Philadelphia to Heathrow flights
Sky Harbor Intl to Heathrow flights
O'Hare Intl to Gatwick flights
Austin to Heathrow flights
Boston to Stansted flights
O'Hare Intl to London City flights
Baltimore to Stansted flights
John F Kennedy Intl to Luton flights
Tampa to Heathrow flights
Los Angeles to Gatwick flights
Seattle to Gatwick flights
Minneapolis to Heathrow flights
Orlando to Gatwick flights
Charlotte to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Raleigh to Heathrow flights

Top 4 airlines flying from Maine to Heathrow

Discover the top 4 airlines that operate flights from Maine to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$586Average$678FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$611Average$845FlexibilityNo cancel feeOn-time69%
DeltaCheapest$765Average$994FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$810Average$895FlexibilityNo cancel feeOn-time71%
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