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Heathrow

$190+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$462
(Orbitz)

One-way from

$190
(WhyPayMore)

Popular in

July

Cheapest in

October

Average price

$1,188
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. 19% potential increase in price ($211 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Orbitz deal was found by Cheapflights users on 7/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2710:45 pmBOS - LHR
1 stop30h 35mTAP AIR PORTUGAL
Wed 10/86:00 amLHR - BOS
1 stop13h 20mTAP AIR PORTUGAL
Deal found 7/30$462
This KLM deal was found by Cheapflights users on 7/30. 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.
Tue 9/98:15 pmBOS - LHR
1 stop9h 30mMultiple Airlines
Thu 9/119:40 amLHR - BOS
Nonstop7h 40mMultiple Airlines
Deal found 7/30$465
This Ticket deal was found by Cheapflights users on 7/30. 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.
Sun 8/177:10 pmBOS - LHR
Nonstop6h 35mVirgin Atlantic
Tue 8/269:40 amLHR - BOS
Nonstop7h 35mVirgin Atlantic
Deal found 7/30$468
This Booking.com deal was found by Cheapflights users on 7/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:35 pmBOS - LHR
1 stop9h 30mAer Lingus
Fri 10/1012:00 pmLHR - BOS
1 stop11h 45mAer Lingus
Deal found 7/31$469
This Austrian Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 9/65:10 pmBOS - LHR
1 stop23h 30mAustrian Airlines
Mon 9/87:30 pmLHR - BOS
2 stops27h 17mAustrian Airlines
Deal found 7/29$483
This lol.travel deal was found by Cheapflights users on 7/29. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/108:47 amBOS - LHR
1 stop16h 08mUnited Airlines
Tue 8/198:30 amLHR - BOS
1 stop13h 13mUnited Airlines
Deal found 7/29$484
This Ovago deal was found by Cheapflights users on 7/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:40 pmBOS - LHR
Nonstop6h 40mBritish Airways
Fri 10/176:10 amLHR - BOS
1 stop13h 50mBritish Airways
Deal found 7/31$487
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/175:50 amBOS - LHR
1 stop23h 10mAir Canada
Tue 8/2612:40 pmLHR - BOS
1 stop9h 57mAir Canada
Deal found 7/29$490
This Scandinavian Airlines deal was found by Cheapflights users on 7/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:35 pmBOS - LHR
2 stops35h 00mScandinavian Airlines
Tue 11/46:40 amLHR - BOS
2 stops14h 10mScandinavian Airlines
Deal found 7/30$491
This Iberia deal was found by Cheapflights users on 7/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:05 pmBOS - LHR
Nonstop6h 45mIberia
Thu 10/309:55 amLHR - BOS
1 stop16h 00mIberia
Deal found 7/30$492
This oojo deal was found by Cheapflights users on 7/30. 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 10/228:50 pmBOS - LHR
1 stop10h 05mIcelandair
Tue 10/288:35 pmLHR - BOS
1 stop26h 10mIcelandair
Deal found 7/30$496
This JetBlue deal was found by Cheapflights users on 7/30. 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.
Sun 8/176:40 pmBOS - LHR
Nonstop6h 50mJetBlue
Tue 8/268:25 amLHR - BOS
Nonstop7h 39mJetBlue
Deal found 7/30$501

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 July 31, 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

Sat 9/27

10:45 pm-10:20 am

1 stop30h 35m

London Heathrow

Wed 10/8

6:00 am-2:20 pm

1 stop13h 20m

$462

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 9/9

8:15 pm-10:45 am

1 stop9h 30m

London Heathrow

Thu 9/11

9:40 am-12:20 pm

Nonstop7h 40m

$465

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 8/17

7:10 pm-6:45 am

Nonstop6h 35m

London Heathrow

Tue 8/26

9:40 am-12:15 pm

Nonstop7h 35m

$468

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 10/3

6:35 pm-9:05 am

1 stop9h 30m

London Heathrow

Mon 10/6

9:50 am-3:30 pm

1 stop10h 40m

$469

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 8/13

11:00 pm-9:05 am

1 stop29h 05m

London Heathrow

Sat 8/16

8:55 am-11:25 am

Nonstop7h 30m

$479

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 9/6

5:10 pm-9:40 pm

1 stop23h 30m

London Heathrow

Mon 9/8

7:30 pm-5:47 pm

2 stops27h 17m

$483

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 8/10

8:47 am-5:55 am

1 stop16h 08m

London Heathrow

Tue 8/19

8:30 am-4:43 pm

1 stop13h 13m

$484

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 10/7

7:40 pm-7:20 am

Nonstop6h 40m

London Heathrow

Fri 10/17

6:10 am-3:00 pm

1 stop13h 50m

$487

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 8/17

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

Tue 8/26

1:05 pm-10:00 pm

1 stop13h 55m

$489

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 8/17

5:50 am-10:00 am

1 stop23h 10m

London Heathrow

Tue 8/26

12:40 pm-5:37 pm

1 stop9h 57m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 40 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 $1,097). 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 July 31, 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.

How much does it cost to fly round-trip from Maine to London Heathrow Airport?

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 July 31, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Virgin Atlantic from Maine to London Heathrow Airport to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.4
Good
1,457 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Canada. According to our data, you can fly for as low as $190. Users have also found prices from $191 and $194 on TAP AIR PORTUGAL and British Airways, 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 $1,097). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

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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
John F Kennedy Intl to London City flights
Newark to Gatwick flights
LaGuardia to Heathrow flights
Newark to London City flights
John F Kennedy Intl to Stansted flights
LaGuardia to Gatwick flights
Boston to Heathrow flights
O'Hare Intl to Heathrow flights
John F Kennedy Intl to Luton flights
Dulles Intl to Heathrow flights
Los Angeles to Heathrow flights
Newark to Stansted flights
San Francisco to Heathrow flights
Seattle to Heathrow flights
Baltimore to Heathrow flights
Newark to Luton flights
Dallas/Fort Worth to Heathrow flights
Miami to Heathrow flights
Boston to Gatwick flights
Philadelphia to Heathrow flights
Atlanta to Heathrow flights
Orlando to Heathrow flights
Hobby to Heathrow flights
Reagan-National to Heathrow flights
Denver to Heathrow flights
O'Hare Intl to Gatwick flights
Boston to London City flights
Dulles Intl to Gatwick flights
O'Hare Intl to London City flights
Dulles Intl to London City flights
Seattle to Gatwick flights
Los Angeles to London City flights
Baltimore to Gatwick flights
San Francisco to Gatwick flights
LaGuardia to Stansted flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
San Francisco to London City flights
Dallas/Fort Worth to Gatwick flights
Los Angeles to Gatwick flights
Orlando to Gatwick flights
Seattle to London City flights
Minneapolis to Heathrow flights
Tampa to Heathrow flights
Midway to Heathrow flights
Charlotte to Heathrow flights
Detroit 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$586Average$678FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$611Average$798FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$786Average$872FlexibilityNo cancel feeOn-time71%
DeltaCheapest$825Average$963FlexibilityNo cancel feeOn-timeN/A

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