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$206+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$472
(Expedia)

One-way from

$206
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$810
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 ($206 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This SWISS deal was found by Cheapflights users on 2/19. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/259:55 pmBOS - LHR
2 stops18h 30mSWISS
dom. 3/21:45 pmLHR - BOS
1 stop11h 35mSWISS
Deal found 2/19$454
This Expedia deal was found by Cheapflights users on 2/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/77:00 amBOS - LHR
1 stop19h 10mMultiple Airlines
dom. 3/96:00 amLHR - BOS
1 stop13h 10mMultiple Airlines
Deal found 2/18$472
This CrystalTravel deal was found by Cheapflights users on 2/19. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/68:50 pmBOS - LHR
1 stop10h 05mIcelandair
sáb. 4/129:25 pmLHR - BOS
1 stop19h 10mIcelandair
Deal found 2/19$473
This Justfly.com deal was found by Cheapflights users on 2/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/2212:55 pmBOS - LHR
2 stops14h 15mAir Canada
mié. 3/269:00 amLHR - BOS
1 stop12h 25mAir Canada
Deal found 2/18$491
This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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.
dom. 9/288:10 pmBOS - LHR
Nonstop6h 40mIberia
mar. 9/307:45 amLHR - BOS
1 stop12h 15mIberia
Deal found 2/20$508
This Ticket deal was found by Cheapflights users on 2/20. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/237:25 pmBOS - LHR
Nonstop6h 40mVirgin Atlantic
mar. 3/42:35 pmLHR - BOS
Nonstop7h 55mVirgin Atlantic
Deal found 2/20$514
This United Airlines deal was found by Cheapflights users on 2/20. 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.
dom. 9/286:20 pmBOS - LHR
1 stop21h 40mUnited Airlines
mar. 9/301:30 pmLHR - BOS
2 stops13h 40mUnited Airlines
Deal found 2/20$543
This oojo deal was found by Cheapflights users on 2/19. 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.
sáb. 3/228:30 amBOS - LHR
Nonstop6h 25mBritish Airways
sáb. 3/291:30 pmLHR - BOS
Nonstop7h 35mBritish Airways
Deal found 2/19$546
This oojo deal was found by Cheapflights users on 2/19. 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.
mar. 4/15:40 pmBOS - LHR
2 stops18h 20mScandinavian Airlines
mar. 4/87:05 amLHR - BOS
2 stops13h 30mScandinavian Airlines
Deal found 2/19$565
This JetBlue Airways deal was found by Cheapflights users on 2/19. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/36:10 pmBOS - LHR
Nonstop6h 45mJetBlue
jue. 3/138:25 amLHR - BOS
Nonstop7h 58mJetBlue
Deal found 2/19$571
This KLM deal was found by Cheapflights users on 2/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/188:20 pmBOS - LHR
Nonstop6h 45mKLM
jue. 3/208:50 amLHR - BOS
Nonstop7h 45mKLM
Deal found 2/19$581
This Finnair deal was found by Cheapflights users on 2/19. 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.
mié. 3/57:28 pmBOS - LHR
1 stop11h 12mFinnair
mié. 3/195:00 pmLHR - BOS
Nonstop7h 35mFinnair
Deal found 2/19$583

Find flights from Maine to Heathrow within your budget

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 febrero 20, 2025.

Fly from

Maine

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

vie. 3/7

7:00 am-7:10 am

1 stop19h 10m

London Heathrow

dom. 3/9

6:00 am-2:10 pm

1 stop13h 10m

$472

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

dom. 4/6

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

sáb. 4/12

9:25 pm-11:35 am

1 stop19h 10m

$473

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

sáb. 3/22

12:55 pm-7:10 am

2 stops14h 15m

London Heathrow

mié. 3/26

9:00 am-5:25 pm

1 stop12h 25m

$491

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar. 3/25

11:00 pm-9:30 am

Nonstop6h 30m

London Heathrow

jue. 3/27

6:15 am-4:20 pm

1 stop14h 05m

$529

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

lun. 3/10

10:55 pm-1:00 pm

1 stop10h 05m

London Heathrow

lun. 3/17

1:45 pm-9:20 pm

1 stop11h 35m

$536

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

jue. 3/20

9:40 pm-10:25 am

1 stop32h 45m

London Heathrow

dom. 3/23

9:00 am-5:25 pm

1 stop12h 25m

$559

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar. 4/1

5:40 pm-5:00 pm

2 stops18h 20m

London Heathrow

mar. 4/8

7:05 am-3:35 pm

2 stops13h 30m

$565

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

lun. 3/3

6:10 pm-5:55 am

Nonstop6h 45m

London Heathrow

jue. 3/13

8:25 am-12:23 pm

Nonstop7h 58m

$571

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar. 3/18

8:20 pm-7:05 am

Nonstop6h 45m

London Heathrow

lun. 3/31

12:45 pm-3:40 pm

Nonstop7h 55m

$581

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mié. 3/5

7:28 pm-11:40 am

1 stop11h 12m

London Heathrow

mié. 3/19

5:00 pm-8:35 pm

Nonstop7h 35m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 48 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.

Travel insights for flights from Maine to Heathrow

Get recent, data-driven insights about flights from Maine to Heathrow including ideal travel times, pricing trends, and more.

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 $1,136). 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 febrero 20, 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 febrero 20, 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
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

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
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

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
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

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
1,274 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

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
7.6
Good
62 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

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
773 reviews
Delta
8.0
Very good
8,219 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

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 $206. Users have also found prices from $232 and $244 on Virgin Atlantic and Delta, 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 $1,136). 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
Harrow
Luton
Wembley
Horley
Canterbury
Northampton
Gatwick
Milton Keynes
Dover
Orpington
Watford
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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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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Los Angeles to London City flights
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LaGuardia to Gatwick flights
Boston to Stansted flights
Philadelphia to Heathrow flights
San Francisco to London City flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
O'Hare Intl to London City flights
Los Angeles to Gatwick flights
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Seattle to Gatwick flights
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Austin to Heathrow flights
Newark to Luton flights
Reagan-National to Gatwick flights
Baltimore to Stansted flights
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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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$586Average$749FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$611Average$845FlexibilityNo cancel feeOn-time69%
DeltaCheapest$652Average$954FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$708Average$1,025FlexibilityNo cancel feeOn-time71%
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