HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$199+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Maine to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 September 17, 2025.

Round-trip from

$448
(LEVEL)

One-way from

$199
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$790
From Maine to London Heathrow
Search Deals
One-way flight from Maine to London Heathrow
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($173 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 17, 2025.

This LEVEL deal was found by Cheapflights users on 9/15. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:00 pmBOS - LHR
1 stop16h 05mLEVEL
Wed 10/228:50 pmLHR - BOS
1 stop29h 25mLEVEL
Deal found 9/15$448
This LEVEL deal was found by Cheapflights users on 9/15. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1311:00 pmBOS - LHR
1 stop16h 05mLEVEL
Tue 3/39:55 amLHR - BOS
1 stop16h 00mLEVEL
Deal found 9/15$454
This Gotogate deal was found by Cheapflights users on 9/15. 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.
Wed 10/110:20 amBOS - LHR
1 stop15h 10mMultiple Airlines
Fri 10/106:00 amLHR - BOS
1 stop14h 25mMultiple Airlines
Deal found 9/15$455
This lastminute.com deal was found by Cheapflights users on 9/15. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:35 pmBOS - LHR
1 stop9h 30mAer Lingus
Sun 11/210:00 amLHR - BOS
1 stop11h 50mAer Lingus
Deal found 9/15$456
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:35 pmBOS - LHR
2 stops41h 50mScandinavian Airlines
Sun 11/96:40 amLHR - BOS
2 stops14h 10mScandinavian Airlines
Deal found 9/15$458
This Ticket deal was found by Cheapflights users on 9/15. 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.
Wed 10/18:15 pmBOS - LHR
Nonstop6h 50mVirgin Atlantic
Sun 10/59:40 amLHR - BOS
Nonstop7h 45mVirgin Atlantic
Deal found 9/15$459
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:15 pmBOS - LHR
Nonstop6h 50mVirgin Atlantic
Tue 10/79:00 amLHR - BOS
1 stop11h 05mVirgin Atlantic
Deal found 9/16$461
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/246:10 pmBOS - LHR
1 stop11h 10mTAP AIR PORTUGAL
Sun 11/96:00 amLHR - BOS
1 stop13h 35mTAP AIR PORTUGAL
Deal found 9/15$462
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 11/111:10 pmBOS - LHR
1 stop12h 10mDelta
Thu 11/136:20 amLHR - BOS
1 stop15h 00mDelta
Deal found 9/15$463
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Wed 10/18:15 pmBOS - LHR
Nonstop6h 50mVirgin Atlantic
Fri 10/106:15 pmLHR - BOS
Nonstop7h 45mVirgin Atlantic
Deal found 9/15$464
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:35 pmBOS - LHR
1 stop9h 30mAer Lingus
Wed 10/229:50 amLHR - BOS
1 stop10h 40mAer Lingus
Deal found 9/16$466
This Virgin Atlantic deal was found by Cheapflights users on 9/15. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:25 pmPWM - LHR
1 stop13h 25mVirgin Atlantic
Thu 11/209:00 amLHR - PWM
2 stops18h 19mVirgin Atlantic
Deal found 9/15$524

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 September 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

Tue 11/18

7:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

Wed 12/3

6:20 am-1:35 pm

1 stop12h 15m

$479

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/29

8:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

Wed 11/12

6:20 am-4:20 pm

1 stop15h 00m

$480

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 10/21

10:45 pm-10:30 am

Nonstop6h 45m

London Heathrow

Tue 10/28

8:55 am-5:20 pm

1 stop12h 25m

$480

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 11/5

7:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

Wed 11/12

6:20 am-1:40 pm

1 stop12h 20m

$480

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 11/19

8:00 pm-7:50 am

Nonstop6h 50m

London Heathrow

Wed 12/3

4:00 pm-6:35 pm

Nonstop7h 35m

$488

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/15

10:45 pm-10:30 am

Nonstop6h 45m

London Heathrow

Wed 10/22

9:40 am-12:25 pm

Nonstop7h 45m

$488

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 10/17

5:40 pm-8:55 am

2 stops34h 15m

London Heathrow

Mon 10/20

7:05 am-3:35 pm

2 stops37h 30m

$492

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 11/11

7:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

Sun 11/16

6:20 am-4:20 pm

1 stop15h 00m

$495

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 10/20

7:05 pm-6:45 am

Nonstop6h 40m

London Heathrow

Sun 11/2

5:30 am-1:20 pm

1 stop11h 50m

$496

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 12/2

3:40 pm-7:10 am

1 stop10h 30m

London Heathrow

Fri 1/23

12:05 pm-8:00 pm

1 stop12h 55m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 45 results
1
2
3
...
5

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 September 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.

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.

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

    Departing from Maine to London Heathrow Airport will take you 6h 40m. Maine and London Heathrow Airport are separated by a distance of 3254 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $200. Users have also found prices from $223 and $223 on KLM 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
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Boston to Heathrow flights
Dulles Intl to Heathrow flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Los Angeles to Heathrow flights
Newark to Gatwick flights
Dallas/Fort Worth to Heathrow flights
John F Kennedy Intl to Gatwick flights
San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
LaGuardia to Gatwick flights
Newark to London City flights
Seattle to Heathrow flights
Hobby to Heathrow flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to Luton flights
Miami to Heathrow flights
Boston to London City flights
Boston to Gatwick flights
Reagan-National to Heathrow flights
Philadelphia to Heathrow flights
Atlanta to Heathrow flights
Dulles Intl to Gatwick flights
Newark to Stansted flights
Newark to Luton flights
Denver to Heathrow flights
Orlando to Heathrow flights
Dulles Intl to London City flights
George Bush Intcntl to Heathrow flights
Baltimore to Gatwick flights
Dallas/Fort Worth to Gatwick flights
Reagan-National to Gatwick flights
Los Angeles to London City flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Boston to Stansted flights
O'Hare Intl to London City flights
Los Angeles to Gatwick flights
Boston to Luton flights
LaGuardia to London City flights
Minneapolis to Heathrow flights
San Francisco to London City flights
Dulles Intl to Stansted flights
Hobby to Gatwick flights
Raleigh to Heathrow flights
Dulles Intl to Luton flights
Austin 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$586Average$678FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$648Average$853FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$802Average$864FlexibilityNo cancel feeOn-time71%
DeltaCheapest$825Average$963FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.