Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Maine to London Heathrow Airport from £192

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

£427

One-way from

£192

Popular in

June

Cheapest in

November

Average price

£562
Icelandair
  • Icelandair
  • 27/9-8/4
  • 2 total stops
  • 37h 30m total
  • Maine to London
Search Deals
Icelandair
  • Icelandair
  • 10/5
  • 1 total stop
  • 26h 45m total
  • Maine to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 30 April 2025.

Sat 27/920:50BOS - LHR
1 stop10h 05mIcelandair
Thu 9/413:05LHR - BOS
1 stop10h 45mIcelandair
Deal found 29/4£427
Wed 10/907:25BOS - LHR
Nonstop6h 30mIberia
Mon 15/908:55LHR - BOS
Nonstop7h 20mIberia
Deal found 29/4£427
Mon 18/817:40BOS - LHR
2 stops15h 55mScandinavian Airlines
Tue 26/807:05LHR - BOS
2 stops13h 30mScandinavian Airlines
Deal found 30/4£428
Wed 30/415:40BOS - LHR
1 stop9h 50mUnited Airlines
Wed 7/513:45LHR - BOS
1 stop11h 10mUnited Airlines
Deal found 29/4£429
Sat 3/522:45BOS - LHR
Nonstop6h 45mVirgin Atlantic
Sat 10/512:45LHR - BOS
Nonstop7h 55mVirgin Atlantic
Deal found 29/4£431
Fri 2/512:15BOS - LHR
2 stops13h 15mMultiple Airlines
Thu 8/508:40LHR - BOS
2 stops14h 17mMultiple Airlines
Deal found 30/4£434
Wed 30/418:26BOS - LHR
Nonstop7h 04mJetBlue
Thu 8/508:25LHR - BOS
Nonstop7h 31mJetBlue
Deal found 29/4£436
Thu 15/513:20BOS - LHR
1 stop13h 25mBritish Airways
Wed 21/509:15LHR - BOS
1 stop15h 35mBritish Airways
Deal found 30/4£441
Tue 29/421:40BOS - LHR
1 stop10h 20mSWISS
Wed 7/513:45LHR - BOS
1 stop11h 10mSWISS
Deal found 28/4£441
Wed 30/419:00BOS - LHR
Nonstop6h 45mDelta
Wed 7/518:15LHR - BOS
Nonstop7h 45mDelta
Deal found 30/4£443
Fri 2/520:00BOS - LHR
Nonstop6h 50mFinnair
Sun 4/517:00LHR - BOS
1 stop11h 26mFinnair
Deal found 28/4£450
Sun 4/510:20BOS - LHR
2 stops15h 15mAir Canada
Sun 11/508:30LHR - BOS
2 stops14h 27mAir Canada
Deal found 30/4£453

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 30 April 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 27/9

12:35-11:55

1 stop18h 20m

London Heathrow

Wed 8/4

21:25-11:35

1 stop19h 10m

£427

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 10/9

18:46-10:20

1 stop10h 34m

London Heathrow

Tue 16/9

20:10-22:45

Nonstop7h 35m

£427

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 18/8

17:40-14:35

2 stops15h 55m

London Heathrow

Tue 26/8

07:05-15:35

2 stops13h 30m

£428

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 1/9

15:20-11:50

2 stops15h 30m

London Heathrow

Tue 16/9

08:45-17:52

2 stops14h 07m

£434

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 24/9

18:30-09:35

1 stop10h 05m

London Heathrow

Sun 28/9

06:50-14:31

2 stops12h 41m

£435

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/5

21:40-13:00

1 stop10h 20m

London Heathrow

Mon 19/5

08:40-15:25

1 stop11h 45m

£441

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/5

20:15-08:05

Nonstop6h 50m

London Heathrow

Tue 20/5

09:40-12:15

Nonstop7h 35m

£443

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 11/5

19:25-07:05

Nonstop6h 40m

London Heathrow

Thu 15/5

10:50-19:50

1 stop14h 00m

£445

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 27/8

14:40-08:20

2 stops36h 40m

London Heathrow

Tue 2/9

15:05-13:50

1 stop27h 45m

£456

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 14/5

11:07-06:30

2 stops14h 23m

London Heathrow

Mon 19/5

12:10-19:55

1 stop12h 45m

£466

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 44 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 return 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, January is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £112). Flying from Maine to London Heathrow Airport in August is currently the most expensive (average of £164). 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 30 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maine to London Heathrow Airport as you normally would.

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 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 30 April 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Austrian Airlines from Maine to London to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

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
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

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
1,334 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

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
780 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

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.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

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.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

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?

    £192 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on JetBlue and Virgin Atlantic, with prices starting from £196 and £210, respectively.

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

    The most popular flight routes from Maine to London Heathrow Airport are Boston Logan Intl - London Heathrow, Portland - London Heathrow and Bangor - London Heathrow.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Maine to London Heathrow Airport (average of £112). Flying from Maine to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Maine?

Book flights to Maine if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Northampton
Southend-on-Sea
Ilford
Crawley
Hayes
Ipswich
Watford
Wembley
Swindon
Folkestone
Maidstone
Winchester

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Maine to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Maine today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Maine to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Maine to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Maine to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Maine shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Maine to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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.
Site
©2025 Cheapflights