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$193+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LON
dic. 26 — ene. 21
vie. 12/26
vie. 1/2
1 adult, Economy
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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 noviembre 26, 2025.

This Travelocity deal was found by Cheapflights users on 11/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/83:40 pmBOS - LHR
1 stop10h 30mMultiple Airlines
sáb. 12/133:40 pmLHR - BOS
2 stops33h 20mMultiple Airlines
Deal found 11/25$509
This KAYAK deal was found by Cheapflights users on 11/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2410:10 pmBOS - LGW
1 stop14h 40mSWISS
jue. 12/46:40 pmLGW - BOS
1 stop30h 20mSWISS
Deal found 11/24$509
This Mytrip deal was found by Cheapflights users on 11/25. 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.
mar. 12/25:10 pmBOS - LTN
1 stop11h 35mMultiple Airlines
mié. 12/106:50 amLTN - BOS
1 stop12h 05mMultiple Airlines
Deal found 11/25$510
This Delta deal was found by Cheapflights users on 11/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/317:10 pmBOS - LHR
Nonstop6h 40mDelta
dom. 1/111:05 pmLHR - BOS
Nonstop7h 55mDelta
Deal found 11/24$510
This KAYAK deal was found by Cheapflights users on 11/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/110:10 pmBOS - LGW
1 stop14h 40mSWISS
jue. 12/46:40 pmLGW - BOS
1 stop30h 20mSWISS
Deal found 11/25$510
This Mytrip deal was found by Cheapflights users on 11/23. 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.
vie. 11/2810:45 amBOS - STN
2 stops28h 20mMultiple Airlines
vie. 12/59:45 pmSTN - BOS
2 stops23h 12mMultiple Airlines
Deal found 11/23$510
This Mytrip deal was found by Cheapflights users on 11/24. 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.
mar. 12/25:10 pmBOS - LTN
1 stop11h 35mMultiple Airlines
mar. 12/99:00 amLTN - BOS
1 stop9h 55mMultiple Airlines
Deal found 11/24$511
This Finnair deal was found by Cheapflights users on 11/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/57:15 pmBOS - LHR
Nonstop6h 45mFinnair
dom. 12/71:30 pmLHR - BOS
Nonstop7h 30mFinnair
Deal found 11/24$511
This Mytrip deal was found by Cheapflights users on 11/24. 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.
dom. 12/710:45 amBOS - LGW
2 stops23h 50mMultiple Airlines
dom. 12/149:35 pmLGW - BOS
2 stops30h 02mMultiple Airlines
Deal found 11/24$511
This Mytrip deal was found by Cheapflights users on 11/24. 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.
lun. 12/89:20 pmBOS - STN
1 stop12h 00mMultiple Airlines
dom. 12/148:30 amSTN - BOS
1 stop10h 25mMultiple Airlines
Deal found 11/24$511
This Booking.com deal was found by Cheapflights users on 11/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/310:15 amBOS - LHR
2 stops18h 05mAir Canada
lun. 5/186:00 amLHR - BOS
2 stops32h 50mAir Canada
Deal found 11/26$512
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/3010:20 pmBOS - LGW
1 stop12h 35mMultiple Airlines
sáb. 12/610:30 pmLGW - BOS
2 stops20h 05mMultiple Airlines
Deal found 11/26$512

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 noviembre 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$509
(Kiwi.com)

One-way from

$193
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$850
Provider with most accurate pricing for Portland-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-London (LON) flights.
Search Deals
From Maine to London (LON)
Search Deals
One-way flight from Maine to London (LON)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 noviembre 26, 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

dom. 12/7

11:25 am-7:05 am

1 stop14h 40m

London Heathrow

lun. 12/15

11:45 am-6:55 pm

1 stop12h 10m

$510

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar. 12/30

7:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

vie. 1/9

9:40 am-12:30 pm

Nonstop7h 50m

$510

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar. 12/30

7:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

dom. 1/11

1:05 pm-4:00 pm

Nonstop7h 55m

$510

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

lun. 12/8

3:40 pm-7:10 am

1 stop10h 30m

London Heathrow

dom. 12/14

9:00 am-5:50 pm

1 stop13h 50m

$511

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

vie. 2/27

7:15 pm-6:50 am

Nonstop6h 35m

London Heathrow

mié. 3/11

6:20 am-2:30 pm

1 stop12h 10m

$511

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

vie. 1/30

7:10 pm-6:50 am

Nonstop6h 40m

London Heathrow

mar. 2/3

6:20 am-1:40 pm

1 stop12h 20m

$511

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

lun. 2/2

7:15 pm-6:50 am

Nonstop6h 35m

London Heathrow

mié. 2/11

6:20 am-1:40 pm

1 stop12h 20m

$511

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

mar. 1/20

7:50 pm-10:55 am

1 stop10h 05m

London Gatwick

mar. 1/27

11:55 am-5:50 pm

1 stop10h 55m

$513

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

mar. 4/28

6:29 pm-6:30 am

Nonstop7h 01m

London Heathrow

mié. 5/6

8:25 am-11:04 am

Nonstop7h 39m

$515

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

mié. 2/25

10:15 am-3:05 pm

3 stops23h 50m

London Stansted

dom. 3/1

9:45 pm-3:57 pm

2 stops23h 12m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

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, September is the cheapest month in which you can book a flight from Maine to London (average of $575). Flying from Maine to London in June is currently the most expensive (average of $1,385). 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 noviembre 26, 2025.

It’s optimal to fly from Maine to London in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at noon.

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 Delta, United Airlines, and Icelandair fly from Maine to London in about 10h 05m. The time it takes to get you to your destination can typically vary by up to 4h 35m. Airlines will cover a distance of 3272 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Maine to London one-way?

    For one-way options, check prices for Iberia. According to our data, you can fly for as low as $201. Users have also found prices from $201 and $210 on British Airways and Lufthansa, 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, September is the cheapest month in which you can book a flight from Maine to London (average of $575). Flying from Maine to London in June is currently the most expensive (average of $1,385). 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
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton
Milton Keynes

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 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 noviembre 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$648Average$874FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$786Average$895FlexibilityNo cancel feeOn-time71%
DeltaCheapest$825Average$963FlexibilityNo cancel feeOn-timeN/A

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