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$244+ Cheap flights from Maine to London (LON)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Maine to London

Keep the following information in mind while searching for Maine to London flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$559
(oojo)

One-way from

$244
(Air France)

Popular in

June

Cheapest in

November

Average price

$751
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 (LON)
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One-way flight from Maine to London (LON)
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Highest demand for flights based on searches. 17% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Maine to London

Cheapest flights from Maine to London
Explore the most affordable flight options available from Maine to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This oojo deal was found by Cheapflights users on 3/27. 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 4/238:50 pmBOS - LHR
1 stop18h 30mIcelandair
Sat 5/109:25 pmLHR - BOS
1 stop19h 10mIcelandair
Deal found 3/27$559
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Sat 4/58:59 amBOS - LGW
1 stop17h 01mMultiple Airlines
Mon 4/146:20 amLGW - BOS
1 stop16h 30mMultiple Airlines
Deal found 3/27$559
This PLAY deal was found by Cheapflights users on 3/27. 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 PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:15 pmBOS - STN
1 stop10h 25mPLAY
Sun 10/267:55 pmSTN - BOS
1 stop26h 05mPLAY
Deal found 3/27$559
This oojo deal was found by Cheapflights users on 3/28. 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.
Thu 8/215:40 pmBOS - LHR
1 stop19h 50mScandinavian Airlines
Tue 8/266:40 amLHR - BOS
1 stop13h 55mScandinavian Airlines
Deal found 3/28$560
This Connections by easyJet deal was found by Cheapflights users on 3/27. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:20 pmBOS - LTN
1 stop13h 40mMultiple Airlines
Wed 11/263:35 pmLTN - BOS
1 stop30h 25mMultiple Airlines
Deal found 3/27$560
This CheapOair deal was found by Cheapflights users on 3/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:50 pmBOS - LGW
1 stop12h 50mIcelandair
Sun 5/113:40 pmLGW - BOS
1 stop11h 20mIcelandair
Deal found 3/28$560
This Mytrip deal was found by Cheapflights users on 3/26. 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 4/97:15 pmBOS - STN
2 stops14h 10mMultiple Airlines
Wed 4/168:15 amSTN - BOS
2 stops14h 35mMultiple Airlines
Deal found 3/26$560
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Sun 4/206:10 pmBOS - LHR
1 stop21h 50mMultiple Airlines
Mon 4/288:25 pmLHR - BOS
1 stop26h 15mMultiple Airlines
Deal found 3/27$562
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Fri 9/197:15 amBOS - LHR
Nonstop6h 30mBritish Airways
Sun 9/285:35 pmLHR - BOS
Nonstop7h 35mBritish Airways
Deal found 3/27$565
This oojo deal was found by Cheapflights users on 3/27. 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.
Fri 9/265:48 pmBOS - LGW
1 stop9h 22mBritish Airways
Sun 10/52:45 pmLGW - BOS
1 stop12h 37mBritish Airways
Deal found 3/27$567
This JetBlue deal was found by Cheapflights users on 3/27. 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.
Fri 9/199:51 pmBOS - LGW
Nonstop6h 44mJetBlue
Thu 9/2512:10 pmLGW - BOS
Nonstop8h 03mJetBlue
Deal found 3/27$568
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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.
Thu 10/95:04 pmBOS - LHR
1 stop9h 41mIberia
Wed 10/152:40 pmLHR - BOS
Nonstop7h 30mIberia
Deal found 3/28$569

Cheapflights Fare Finder

Customize your flight search to find flights from Maine to London 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 March 28, 2025.
Use the filters below to find and compare flights from Maine to London that are best for you.

Fly from

Maine

Fly to

London

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 4/23

8:50 pm-8:20 pm

1 stop18h 30m

London Heathrow

Sat 5/3

9:25 pm-11:35 am

1 stop19h 10m

$558

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 4/23

6:10 pm-9:00 pm

1 stop21h 50m

London Heathrow

Sat 5/10

1:45 pm-7:55 pm

1 stop11h 10m

$559

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Sun 5/4

8:50 pm-2:40 pm

1 stop12h 50m

London Gatwick

Thu 5/8

1:00 pm-6:50 pm

1 stop10h 50m

$559

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 4/9

7:15 pm-2:25 pm

2 stops14h 10m

London Stansted

Wed 4/16

8:15 am-5:50 pm

2 stops14h 35m

$560

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 4/26

5:30 pm-10:30 am

1 stop12h 00m

London Heathrow

Tue 5/13

9:15 am-7:50 pm

1 stop15h 35m

$562

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 4/9

7:15 pm-10:40 am

1 stop10h 25m

London Stansted

Sun 4/13

11:40 am-5:50 pm

1 stop11h 10m

$562

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/27

9:40 pm-11:25 am

1 stop32h 45m

London Heathrow

Wed 4/30

9:00 am-5:40 pm

1 stop13h 40m

$563

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Tue 5/6

7:15 pm-2:30 pm

2 stops14h 15m

London Luton

Tue 5/13

6:05 am-5:50 pm

2 stops16h 45m

$563

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 5/1

10:20 am-6:35 am

2 stops15h 15m

London Heathrow

Mon 5/12

6:50 am-2:32 pm

2 stops12h 42m

$564

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Fri 9/19

11:34 am-8:10 am

1 stop15h 36m

London Gatwick

Sun 9/28

2:45 pm-10:22 pm

1 stop12h 37m

$567

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 60 results
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Best time to book a flight from Maine to London

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

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

Currently, November is the cheapest month in which you can book a flight from Maine to London (average of $661). Flying from Maine to London in June is currently the most expensive (average of $1,115). 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 LON?

Find hourly flight availability from Maine to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

When flying from Maine to London, 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 London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London 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 when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, 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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated March 28, 2025.
Get a feel of what it's like to fly with Delta, Porter Airlines and KLM from Maine to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,321 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
63 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,267 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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 London. 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 one-way?

    For one-way options, check prices for Air France. According to our data, you can fly for as low as $244. Users have also found prices from $245 and $247 on Icelandair and PLAY, respectively.

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

    Most travelers choose Boston Logan Intl - London Heathrow, Boston Logan Intl - London Gatwick or Boston Logan Intl - London City when deciding on the best route from Maine to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maine to London 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?

    Currently, November is the cheapest month in which you can book a flight from Maine to London (average of $661). Flying from Maine to London in June is currently the most expensive (average of $1,115). 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
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Croydon
Borehamwood
Bromley
Folkestone
Ilford
Aylesbury
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Maine to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Maine to London

Discover the top 4 airlines that operate flights from Maine to London. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$586Average$678FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$611Average$845FlexibilityNo cancel feeOn-time69%
DeltaCheapest$765Average$994FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$810Average$895FlexibilityNo cancel feeOn-time71%
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