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Cheap flights from London to Maine from £338

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — PWM
9 May — 16 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Maine

Enter your travel dates to find the best prices.

Cheapest flights from London to Maine
Explore the most affordable flight options available from London to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 April 2026.

Wed 18/1111:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Sun 29/1119:50
BOS
-
LGW
1 stop10h 05m
Icelandair
Deal found 6/4£394
Tue 24/1111:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Sat 28/1119:50
BOS
-
LGW
1 stop10h 05m
Icelandair
Deal found 6/4£399
Tue 2/610:05
LHR
-
BOS
Nonstop7h 30m
American Airlines
Mon 15/612:01
BOS
-
LHR
1 stop13h 24m
American Airlines
Deal found 6/4£399
Mon 17/817:35
LHR
-
BOS
Nonstop7h 30m
British Airways
Mon 24/807:25
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 5/4£400
Sun 10/520:10
LHR
-
BOS
Nonstop7h 25m
British Airways
Mon 18/519:30
BOS
-
LHR
Nonstop6h 40m
British Airways
Deal found 8/4£402
Wed 13/520:10
LHR
-
BOS
Nonstop7h 25m
British Airways
Thu 21/519:30
BOS
-
LHR
Nonstop6h 40m
British Airways
Deal found 8/4£402
Mon 17/812:30
LHR
-
BOS
1 stop11h 37m
American Airlines
Wed 26/813:10
BOS
-
LHR
1 stop13h 10m
American Airlines
Deal found 5/4£403
Mon 16/1111:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Thu 19/1111:40
BOS
-
LGW
1 stop18h 15m
Icelandair
Deal found 7/4£403
Tue 3/1111:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Tue 10/1119:50
BOS
-
LGW
1 stop10h 05m
Icelandair
Deal found 6/4£404
Tue 12/509:40
LHR
-
BOS
Nonstop7h 30m
Delta
Sun 17/517:05
BOS
-
LHR
1 stop12h 15m
Delta
Deal found 8/4£405
Sun 10/511:45
LHR
-
BOS
1 stop12h 18m
Delta
Sun 17/517:05
BOS
-
LHR
1 stop12h 15m
Delta
Deal found 8/4£408
Mon 1/617:35
LHR
-
BOS
Nonstop7h 30m
British Airways
Fri 12/619:35
BOS
-
LHR
Nonstop6h 35m
British Airways
Deal found 5/4£408

Find flight deals from London to Maine

Keep the following information in mind while searching for London to Maine flight deals. Data was last updated 9 April 2026.

Round-trip from

£399

One-way from

£338

Popular in

August

Cheapest in

October

Average price

£606
American Airlines
  • American Airlines
  • 2/6-15/6
  • 1 total stop
  • 20h 54m total
  • London to Maine
Search Deals
JetBlue
  • JetBlue
  • 7/5
  • 1 total stop
  • 16h 08m total
  • London to Maine
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£74 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Maine 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 9 April 2026.
Use the filters below to find and compare flights from London to Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoston

LTN - BOS

LTNBOS

London Luton

Mon 4/5

08:15-22:00

1 stop18h 45m

Boston Logan Intl

Mon 11/5

23:30-22:50

1 stop18h 20m

£425

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 7/5

13:35-21:05

1 stop12h 30m

Boston Logan Intl

Thu 14/5

22:50-08:40

1 stop28h 50m

£437

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 7/5

20:50-21:05

1 stop29h 15m

Boston Logan Intl

Thu 14/5

22:50-09:10

1 stop29h 20m

£441

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 28/5

13:35-21:05

1 stop12h 30m

Boston Logan Intl

Thu 4/6

22:50-23:10

1 stop19h 20m

£458

LondonBoston

LTN - BOS

LTNBOS

London Luton

Mon 20/4

08:15-09:49

3 stops30h 34m

Boston Logan Intl

Mon 27/4

20:50-01:10

3 stops23h 20m

£462

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 16/6

10:55-21:05

1 stop15h 10m

Boston Logan Intl

Tue 29/9

23:00-10:15

1 stop30h 15m

£472

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 15/9

10:55-21:15

1 stop15h 20m

Boston Logan Intl

Tue 22/9

23:00-07:15

1 stop27h 15m

£472

LondonBoston

LTN - BOS

LTNBOS

London Luton

Tue 21/4

09:40-18:50

2 stops14h 10m

Boston Logan Intl

Tue 28/4

20:50-15:30

2 stops13h 40m

£486

LondonBoston

LTN - BOS

LTNBOS

London Luton

Sun 19/4

08:00-14:45

2 stops35h 45m

Boston Logan Intl

Sun 26/4

20:50-22:10

3 stops20h 20m

£513

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 8/9

09:25-19:55

1 stop15h 30m

Boston Logan Intl

Tue 15/9

17:20-08:25

1 stop10h 05m

£516

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from London to Maine

Have a flexible travel schedule? Discover the best time to fly to Maine from London 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 London to Maine

What is the cheapest month to book a flight from London to Maine?

Currently, July is the cheapest month in which you can book a flight from London to Maine (average of £267). Flying from London to Maine in December is currently the most expensive (average of £783). 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.

How much does it cost for a return flight from London to Maine?

Reviews of airlines servicing Maine

Get insights into the airlines that provide service to Maine. 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 Maine. Reviews last updated 9 April 2026.
Get a feel of what it's like to fly with Finnair,United Airlines, andJetBlue from London to Maine by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Comfort

7.5

Overall

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,381 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Comfort

7.5

Overall

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
United Airlines
7.4
Good
9,555 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Comfort

7.5

Overall

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
JetBlue
7.2
Good
2,925 reviews
Finnair
7.7
Good
1,381 reviews
Check prices

Boarding

7.7

Comfort

7.5

Overall

7.7

Crew

8.2

Entertainment

6.9

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

Find useful and relevant information for your journey from London to Maine. 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 London to Maine?

    There are many flights that can get you from London to Maine in 12h 30m. Fly via LEVEL, United Airlines, or JetBlue to get the fastest option. Airlines will cover a distance of 3272 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    While some choose either London Gatwick - Boston Logan Intl or London City - Boston Logan Intl, London Heathrow - Boston Logan Intl is the most popular route from London to Maine.

  • Can I find deals for flights from London to Maine that include hotel bookings?

    Yes. In addition to deals on London to Maine flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Maine?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Maine.

  • Can I find deals for business class flights from London to Maine?

    Yes. Cheapflights offers flight deals from London to Maine 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 London to Maine?

    Currently, July is the cheapest month in which you can book a flight from London to Maine (average of £267). Flying from London to Maine in December is currently the most expensive (average of £783). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Maine

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Maine

Discover the top airline that operate flights from London to Maine. 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 858,174 searches. Data last updated 9 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£543Average£720FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 London to Maine?

Deals for London to Maine flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to Maine for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to Maine from London 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 London to Maine become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Maine from London today and book when prices fit your budget.

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