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$248+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$567
(Flightnetwork)

One-way from

$249
(Gotogate)

Popular in

June

Cheapest in

November

Average price

$753
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. 18% potential increase in price ($202 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 24, 2025.

This Icelandair deal was found by Cheapflights users on 4/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:00 pmBOS - LHR
1 stop9h 50mIcelandair
Wed 12/178:40 pmLHR - BOS
1 stop18h 55mIcelandair
Deal found 4/22$563
This oojo deal was found by Cheapflights users on 4/22. 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 5/110:05 amBOS - LGW
1 stop17h 05mBritish Airways
Tue 5/63:05 pmLGW - BOS
1 stop12h 44mBritish Airways
Deal found 4/22$563
This Mytrip deal was found by Cheapflights users on 4/21. 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 5/177:15 pmBOS - STN
2 stops24h 05mMultiple Airlines
Sat 5/244:30 pmSTN - BOS
2 stops30h 20mMultiple Airlines
Deal found 4/21$564
This PLAY deal was found by Cheapflights users on 4/22. 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.
Mon 6/97:15 pmBOS - LTN
2 stops18h 45mMultiple Airlines
Thu 6/126:00 amLTN - BOS
2 stops16h 50mMultiple Airlines
Deal found 4/22$565
This oojo deal was found by Cheapflights users on 4/22. 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.
Tue 9/1611:35 pmBOS - LGW
1 stop10h 05mIcelandair
Mon 9/223:40 pmLGW - BOS
1 stop11h 20mIcelandair
Deal found 4/22$565
This Mytrip deal was found by Cheapflights users on 4/21. 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.
Mon 5/127:15 pmBOS - LHR
2 stops18h 15mMultiple Airlines
Fri 5/169:25 pmLHR - BOS
1 stop25h 25mMultiple Airlines
Deal found 4/21$566
This oojo deal was found by Cheapflights users on 4/22. 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.
Tue 9/165:40 pmBOS - LHR
1 stop23h 00mScandinavian Airlines
Thu 9/256:40 amLHR - BOS
1 stop13h 55mScandinavian Airlines
Deal found 4/22$567
This Mytrip deal was found by Cheapflights users on 4/23. 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 5/147:15 pmBOS - SEN
2 stops16h 25mMultiple Airlines
Wed 5/215:00 pmSEN - BOS
2 stops29h 50mMultiple Airlines
Deal found 4/23$567
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sun 4/277:15 pmBOS - STN
1 stop10h 25mPLAY
Sun 5/411:40 amSTN - BOS
1 stop11h 10mPLAY
Deal found 4/22$568
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 9/198:10 pmBOS - LHR
Nonstop6h 40mBritish Airways
Thu 9/258:10 pmLHR - BOS
Nonstop7h 35mBritish Airways
Deal found 4/22$570
This JetBlue deal was found by Cheapflights users on 4/22. 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 9/269:51 pmBOS - LGW
Nonstop6h 44mJetBlue
Fri 10/312:10 pmLGW - BOS
Nonstop8h 03mJetBlue
Deal found 4/22$572
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 5/97:40 pmBOS - LHR
Nonstop6h 40mIberia
Tue 5/138:55 amLHR - BOS
Nonstop7h 15mIberia
Deal found 4/23$576

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 April 24, 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 - LGW

BOSLGW

Boston Logan Intl

Thu 5/1

10:05 am-8:10 am

1 stop17h 05m

London Gatwick

Tue 5/6

3:05 pm-10:49 pm

1 stop12h 44m

$563

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Sat 5/17

7:15 pm-12:20 am

2 stops24h 05m

London Stansted

Sat 5/24

4:30 pm-5:50 pm

2 stops30h 20m

$564

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Mon 6/9

7:15 pm-7:00 pm

2 stops18h 45m

London Luton

Thu 6/12

6:00 am-5:50 pm

2 stops16h 50m

$565

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 8/19

5:40 pm-4:25 pm

2 stops17h 45m

London Heathrow

Mon 8/25

7:50 pm-3:35 pm

2 stops24h 45m

$567

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Wed 5/14

7:15 pm-4:40 pm

2 stops16h 25m

London Southend

Wed 5/21

5:00 pm-5:50 pm

2 stops29h 50m

$567

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 5/5

11:35 pm-8:20 pm

1 stop15h 45m

London Heathrow

Tue 5/27

9:25 pm-11:35 am

1 stop19h 10m

$568

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Sun 4/27

7:15 pm-10:40 am

1 stop10h 25m

London Stansted

Sun 5/4

11:40 am-5:50 pm

1 stop11h 10m

$568

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Sun 5/4

11:35 pm-11:45 am

1 stop31h 10m

London Gatwick

Fri 5/9

3:40 pm-10:00 pm

1 stop11h 20m

$569

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 9/2

7:25 am-6:55 pm

Nonstop6h 30m

London Heathrow

Mon 9/15

5:35 pm-8:10 pm

Nonstop7h 35m

$571

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 9/8

6:46 pm-10:20 am

1 stop10h 34m

London Heathrow

Mon 9/15

2:40 pm-5:10 pm

Nonstop7h 30m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

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 $1,110). 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 April 24, 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 April 24, 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
7,920 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
8.0
Very good
284 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
1,333 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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
7.5
Good
65 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

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 Icelandair. According to our data, you can fly for as low as $249. Users have also found prices from $259 and $264 on PLAY and TAP AIR PORTUGAL, 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 $1,110). 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
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Chelmsford
Sutton
Brentwood

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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$586Average$678FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$611Average$847FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$786Average$886FlexibilityNo cancel feeOn-time71%
DeltaCheapest$789Average$994FlexibilityNo cancel feeOn-timeN/A

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