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$202+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
Feb 5 — Feb 121
Thu 2/5
Thu 2/12
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 January 6, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$498
(oojo)

One-way from

$202
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$859
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. 20% potential increase in price ($212 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 6, 2026.

This oojo deal was found by Cheapflights users on 1/5. 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 4/810:45 pmBOS - LHR
1 stop11h 50mTAP AIR PORTUGAL
Sun 4/127:50 pmLHR - BOS
1 stop23h 50mTAP AIR PORTUGAL
Deal found 1/5$498
This oojo deal was found by Cheapflights users on 1/6. 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.
Sun 1/1811:10 amBOS - LGW
2 stops19h 55mBritish Airways
Mon 1/267:40 pmLGW - BOS
2 stops28h 53mBritish Airways
Deal found 1/6$498
This Mytrip deal was found by Cheapflights users on 1/5. 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 1/108:40 pmBOS - STN
2 stops21h 25mMultiple Airlines
Thu 1/159:30 pmSTN - BOS
2 stops23h 27mMultiple Airlines
Deal found 1/5$498
This Mytrip deal was found by Cheapflights users on 1/5. 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 2/210:15 amBOS - LTN
3 stops22h 45mMultiple Airlines
Mon 2/91:55 pmLTN - BOS
2 stops35h 25mMultiple Airlines
Deal found 1/5$499
This Gurufare deal was found by Cheapflights users on 1/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:10 pmBOS - LHR
Nonstop6h 50mFinnair
Sun 3/298:10 pmLHR - BOS
Nonstop7h 25mFinnair
Deal found 1/6$499
This CrystalTravel deal was found by Cheapflights users on 1/5. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/117:50 pmBOS - LGW
1 stop10h 05mIcelandair
Thu 1/1511:55 amLGW - BOS
1 stop10h 55mIcelandair
Deal found 1/5$499
This Mytrip deal was found by Cheapflights users on 1/5. 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 1/108:40 pmBOS - STN
2 stops21h 25mMultiple Airlines
Tue 1/139:45 pmSTN - BOS
2 stops23h 12mMultiple Airlines
Deal found 1/5$499
This Mytrip deal was found by Cheapflights users on 1/5. 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 1/244:15 pmBOS - LTN
2 stops21h 00mMultiple Airlines
Sat 1/316:00 amLTN - BOS
2 stops14h 57mMultiple Airlines
Deal found 1/5$500
This Mytrip deal was found by Cheapflights users on 1/5. 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 1/113:40 pmBOS - LHR
2 stops12h 40mMultiple Airlines
Tue 1/206:50 amLHR - BOS
2 stops13h 02mMultiple Airlines
Deal found 1/5$500
This oojo deal was found by Cheapflights users on 1/6. 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 1/214:45 pmBOS - LGW
1 stop13h 05mBritish Airways
Mon 1/267:40 pmLGW - BOS
2 stops28h 53mBritish Airways
Deal found 1/6$500
This Mytrip deal was found by Cheapflights users on 1/5. 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 1/218:40 pmBOS - STN
2 stops17h 10mMultiple Airlines
Sat 1/246:25 pmSTN - BOS
2 stops24h 10mMultiple Airlines
Deal found 1/5$500
This Mytrip deal was found by Cheapflights users on 1/5. 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 1/214:35 pmBOS - LTN
3 stops22h 15mMultiple Airlines
Thu 1/298:25 amLTN - BOS
2 stops15h 10mMultiple Airlines
Deal found 1/5$501

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 January 6, 2026.
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 - STN

BOSSTN

Boston Logan Intl

Sun 1/18

9:15 pm-11:05 am

1 stop8h 50m

London Stansted

Sat 1/24

6:30 am-1:55 pm

1 stop12h 25m

$499

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Wed 1/21

4:35 pm-7:50 pm

3 stops22h 15m

London Luton

Thu 1/29

8:25 am-6:35 pm

2 stops15h 10m

$501

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 2/20

7:15 pm-6:50 am

Nonstop6h 35m

London Heathrow

Fri 2/27

6:20 am-1:40 pm

1 stop12h 20m

$502

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 4/29

9:30 pm-9:15 am

Nonstop6h 45m

London Heathrow

Wed 5/6

6:30 am-1:10 pm

1 stop11h 40m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 2/1

7:15 pm-6:50 am

Nonstop6h 35m

London Heathrow

Sun 2/8

6:30 am-1:25 pm

1 stop11h 55m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 2/8

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Thu 2/12

9:20 am-12:20 pm

Nonstop8h 00m

$506

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 1/23

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Mon 3/9

9:20 am-1:16 pm

Nonstop7h 56m

$506

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 3/9

8:15 pm-6:55 am

Nonstop6h 40m

London Heathrow

Fri 3/13

9:20 am-1:16 pm

Nonstop7h 56m

$506

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 2/1

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Fri 2/6

9:20 am-12:20 pm

Nonstop8h 00m

$506

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 2/16

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Tue 2/24

9:20 am-12:19 pm

Nonstop7h 59m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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, April is the cheapest month in which you can book a flight from Maine to London (average of $596). Flying from Maine to London in December is currently the most expensive (average of $1,472). 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.

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.

  • How long is the flight from Maine to London?

    Airlines like Virgin Atlantic, KLM, and Delta fly from Maine to London in about 6h 35m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 3254 mi. Most flights are nonstop.

  • 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, April is the cheapest month in which you can book a flight from Maine to London (average of $596). Flying from Maine to London in December is currently the most expensive (average of $1,472). 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?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

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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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Dulles Intl to London City flights
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O'Hare Intl to Gatwick flights
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Dulles Intl to Stansted flights
Boston to Stansted flights
Los Angeles to Gatwick flights
O'Hare Intl to London City flights
Newark to Edinburgh flights
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John F Kennedy Intl to Edinburgh flights
San Francisco to London City flights
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Los Angeles to London City flights
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O'Hare Intl to Stansted flights

Top 3 airlines flying from Maine to London

Discover the top 3 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 January 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$648Average$874FlexibilityNo cancel feeOn-time69%
DeltaCheapest$765Average$1,083FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$786Average$1,029FlexibilityNo cancel feeOn-time71%

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