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Heathrow

$248+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
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 abril 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$563
(Mytrip)

One-way from

$248
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$753
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. 18% potential increase in price ($202 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/110:40 amBOS - LHR
1 stop14h 55mMultiple Airlines
mié. 5/216:00 amLHR - BOS
1 stop12h 50mMultiple Airlines
Deal found 4/17$563
This oojo deal was found by Cheapflights users on 4/17. 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.
mié. 5/78:50 pmBOS - LHR
1 stop18h 30mIcelandair
lun. 5/129:25 pmLHR - BOS
1 stop29h 35mIcelandair
Deal found 4/17$564
This oojo deal was found by Cheapflights users on 4/17. 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.
lun. 9/155:40 pmBOS - LHR
1 stop23h 00mScandinavian Airlines
lun. 9/226:40 amLHR - BOS
1 stop13h 55mScandinavian Airlines
Deal found 4/17$566
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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.
mar. 11/2510:00 pmBOS - LHR
Nonstop6h 30mIberia
vie. 11/2811:25 amLHR - BOS
Nonstop7h 35mIberia
Deal found 4/16$568
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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.
vie. 9/197:15 amBOS - LHR
Nonstop6h 30mBritish Airways
vie. 9/268:55 amLHR - BOS
Nonstop7h 20mBritish Airways
Deal found 4/17$569
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
jue. 5/85:05 pmBOS - LHR
1 stop13h 20mSWISS
jue. 5/158:40 amLHR - BOS
1 stop11h 45mSWISS
Deal found 4/17$576
This United Airlines deal was found by Cheapflights users on 4/17. 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.
vie. 4/256:00 amBOS - LHR
1 stop9h 40mUnited Airlines
vie. 5/21:45 pmLHR - BOS
1 stop11h 10mUnited Airlines
Deal found 4/17$577
This Air Canada deal was found by Cheapflights users on 4/17. 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.
vie. 9/193:20 pmBOS - LHR
1 stop13h 40mAir Canada
dom. 9/286:50 amLHR - BOS
2 stops12h 41mAir Canada
Deal found 4/17$582
This JetBlue deal was found by Cheapflights users on 4/17. 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.
jue. 4/246:26 pmBOS - LHR
Nonstop7h 04mJetBlue
mié. 5/218:25 amLHR - BOS
Nonstop7h 31mJetBlue
Deal found 4/17$583
This Delta deal was found by Cheapflights users on 4/16. 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.
vie. 8/157:10 pmBOS - LHR
Nonstop6h 35mDelta
sáb. 8/239:40 amLHR - BOS
Nonstop7h 35mDelta
Deal found 4/16$592
This Finnair deal was found by Cheapflights users on 4/17. 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.
vie. 4/258:00 pmBOS - LHR
1 stop10h 05mFinnair
vie. 5/28:10 pmLHR - BOS
Nonstop7h 20mFinnair
Deal found 4/17$600
This Austrian Airlines deal was found by Cheapflights users on 4/16. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/317:00 pmBOS - LHR
1 stop15h 05mAustrian Airlines
sáb. 11/89:05 amLHR - BOS
1 stop33h 35mAustrian Airlines
Deal found 4/16$605

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 abril 17, 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

lun. 5/12

12:15 pm-10:00 am

2 stops16h 45m

London Heathrow

lun. 5/19

6:50 am-2:32 pm

2 stops12h 42m

$563

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mié. 5/7

8:50 pm-8:20 pm

1 stop18h 30m

London Heathrow

dom. 5/11

9:25 pm-10:00 pm

1 stop29h 35m

$564

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

jue. 5/8

7:25 am-6:55 pm

Nonstop6h 30m

London Heathrow

mié. 5/21

10:50 am-7:50 pm

1 stop14h 00m

$573

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

vie. 5/2

10:20 am-6:30 am

1 stop15h 10m

London Heathrow

jue. 5/8

8:40 am-5:57 pm

2 stops14h 17m

$574

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

jue. 5/8

8:15 pm-8:05 am

Nonstop6h 50m

London Heathrow

mié. 5/21

6:15 pm-9:00 pm

Nonstop7h 45m

$576

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

vie. 4/25

6:00 am-8:40 pm

1 stop9h 40m

London Heathrow

vie. 5/2

1:45 pm-7:55 pm

1 stop11h 10m

$577

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

dom. 5/11

7:25 pm-7:05 am

Nonstop6h 40m

London Heathrow

dom. 5/18

8:55 am-11:10 am

Nonstop7h 15m

$581

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar. 4/29

8:00 pm-7:50 am

Nonstop6h 50m

London Heathrow

dom. 5/4

8:55 am-11:10 am

Nonstop7h 15m

$583

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

vie. 4/25

6:26 pm-6:30 am

Nonstop7h 04m

London Heathrow

vie. 5/2

8:25 am-10:56 am

Nonstop7h 31m

$585

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

jue. 5/1

8:15 pm-8:05 am

Nonstop6h 50m

London Heathrow

lun. 5/5

9:40 am-12:15 pm

Nonstop7h 35m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 49 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 $1,110). 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 abril 17, 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 abril 17, 2025.
To help decide which airline to fly from Maine to London, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
1,327 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
7.6
Good
775 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
7.5
Good
65 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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 Icelandair. According to our data, you can fly for as low as $248. Users have also found prices from $303 and $312 on Delta 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, Bangor - London Heathrow or Portland - 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 $1,110). 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
Hayes
Hounslow
Thornton Heath
Luton
Horley
Wembley
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Borehamwood
Folkestone
Ilford
Broadway
Aylesbury

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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.
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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 abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$586Average$678FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$611Average$847FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$786Average$886FlexibilityNo cancel feeOn-time71%
DeltaCheapest$789Average$994FlexibilityNo cancel feeOn-timeN/A

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