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 $258. Users have also found prices from $258 and $281 on PLAY and Virgin Atlantic, 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.

What are the most popular airlines that fly from Maine to London?

When booking a flight from Maine to London, you may want to consider flying on JetBlue, Delta or United Airlines as they are the most popular for this route.

What is the cheapest month to fly from Maine to London?

The best pricing can be found in the month of November. Prices to London from Maine average $864. You can even find prices in November for less than $864, as users have found deals to London from as low as $696. The month of June appears to be one of the more expensive times to travel to London from Maine. Flying in the targeted month can save you up to 43%.

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.

$258+ Flights from Maine to London - Compare & Save Big

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Cheap flight deals from Maine to London

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$572 (Mytrip)
One-way from	$258 (Mytrip)
Popular in	June
Cheapest in	November
Average price	$769

Provider with most accurate pricing for Portland-London (LON) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-London (LON) flights.

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From Maine to London (LON)

Search Deals

One-way flight from Maine to London (LON)

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($202 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 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 May 1, 2025.

Sun 5/118:50 pmBOS - LHR

1 stop10h 05mMultiple Airlines

Wed 5/218:50 pmLHR - BOS

1 stop29h 15mMultiple Airlines

Deal found 4/30

$572

Wed 4/301:58 pmBOS - LGW

2 stops13h 12mAmerican Airlines

Tue 5/133:05 pmLGW - BOS

1 stop12h 44mAmerican Airlines

Deal found 4/30

$572

Mon 7/217:25 amBOS - LHR

Nonstop6h 30mBritish Airways

Fri 8/222:40 pmLHR - BOS

Nonstop7h 35mBritish Airways

Deal found 4/30

$573

Tue 5/207:15 pmBOS - LTN

1 stop12h 45mMultiple Airlines

Wed 6/116:15 amLTN - BOS

1 stop16h 35mMultiple Airlines

Deal found 4/30

$573

Tue 6/312:35 pmBOS - LGW

1 stop21h 05mIcelandair

Wed 6/113:40 pmLGW - BOS

1 stop11h 20mIcelandair

Deal found 4/30

$573

Sat 5/37:15 pmBOS - STN

1 stop10h 25mPLAY

Mon 5/511:40 amSTN - BOS

1 stop11h 10mPLAY

Deal found 4/29

$573

Mon 9/15:40 pmBOS - LHR

2 stops17h 45mScandinavian Airlines

Mon 9/87:05 amLHR - BOS

2 stops37h 30mScandinavian Airlines

Deal found 4/30

$574

Wed 5/2812:35 pmBOS - LHR

1 stop18h 20mIcelandair

Wed 6/41:05 pmLHR - BOS

1 stop13h 55mIcelandair

Deal found 4/30

$575

Fri 5/210:20 amBOS - LHR

1 stop18h 40mUnited Airlines

Wed 5/78:40 amLHR - BOS

1 stop11h 45mUnited Airlines

Deal found 4/30

$576

Tue 5/1311:35 pmBOS - LGW

1 stop10h 05mMultiple Airlines

Wed 5/211:00 pmLGW - BOS

1 stop13h 05mMultiple Airlines

Deal found 4/30

$576

Wed 4/3010:45 pmBOS - LHR

Nonstop6h 45mVirgin Atlantic

Sun 5/412:45 pmLHR - BOS

Nonstop7h 55mVirgin Atlantic

Deal found 4/30

$578

Wed 5/79:30 amBOS - LGW

1 stop17h 40mBritish Airways

Mon 5/1211:35 amLGW - BOS

1 stop13h 15mBritish Airways

Deal found 4/30

$578

Best flights from Maine to London
Discover carefully curated flight deals from Maine to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Sat 5/1012:15 pmBOS - LHR

2 stops13h 15mMultiple Airlines

Sun 5/188:45 amLHR - BOS

1 stop16h 10mMultiple Airlines

Deal found 4/29

$572

Sat 5/37:05 pmBOS - LHR

Nonstop6h 40mVirgin Atlantic

Sat 5/109:40 amLHR - BOS

Nonstop7h 35mVirgin Atlantic

Deal found 4/29

$573

Sat 5/37:15 pmBOS - STN

1 stop10h 25mPLAY

Mon 5/511:40 amSTN - BOS

1 stop11h 10mPLAY

Deal found 4/29

$573

Fri 5/98:05 pmBOS - LHR

Nonstop6h 45mIberia

Tue 5/1311:30 amLHR - BOS

1 stop13h 20mIberia

Deal found 4/30

$574

Wed 5/149:30 amBOS - LGW

1 stop17h 40mBritish Airways

Fri 5/2311:35 amLGW - BOS

1 stop13h 15mBritish Airways

Deal found 4/30

$574

Tue 5/66:55 pmBOS - LHR

1 stop10h 05mUnited Airlines

Tue 5/131:45 pmLHR - BOS

1 stop11h 10mUnited Airlines

Deal found 4/29

$575

Thu 6/511:35 pmBOS - LGW

1 stop10h 05mIcelandair

Thu 6/193:40 pmLGW - BOS

1 stop11h 20mIcelandair

Deal found 4/30

$579

Wed 5/712:15 pmBOS - LHR

2 stops13h 15mAir Canada

Wed 5/148:40 amLHR - BOS

2 stops14h 17mAir Canada

Deal found 4/29

$582

Sun 5/46:26 pmBOS - LHR

Nonstop7h 04mJetBlue

Thu 5/228:25 amLHR - BOS

Nonstop7h 31mJetBlue

Deal found 4/28

$584

Tue 5/69:40 pmBOS - LGW

1 stop15h 10mSWISS

Mon 5/126:35 pmLGW - BOS

1 stop25h 50mSWISS

Deal found 4/30

$584

Thu 5/151:20 pmBOS - LGW

1 stop13h 50mAmerican Airlines

Wed 5/213:05 pmLGW - BOS

1 stop12h 44mAmerican Airlines

Deal found 4/29

$592

Tue 5/610:45 pmBOS - LHR

Nonstop6h 45mDelta

Mon 5/196:15 pmLHR - BOS

Nonstop7h 45mDelta

Deal found 4/28

$594

Last-minute flights from Maine to London
Discover last-minute flight deals from Maine to London. Data last updated May 1, 2025 and is based on user searches.

Wed 4/301:58 pmBOS - LGW

2 stops13h 12mAmerican Airlines

Tue 5/133:05 pmLGW - BOS

1 stop12h 44mAmerican Airlines

Deal found 4/30

$572

Wed 4/306:10 pmBOS - LHR

1 stop21h 50mUnited Airlines

Wed 5/71:45 pmLHR - BOS

1 stop11h 10mUnited Airlines

Deal found 4/30

$576

Wed 4/3010:45 pmBOS - LHR

Nonstop6h 45mVirgin Atlantic

Sun 5/412:45 pmLHR - BOS

Nonstop7h 55mVirgin Atlantic

Deal found 4/30

$578

Wed 4/309:25 pmBOS - LHR

1 stop10h 15mAer Lingus

Tue 5/131:25 pmLHR - BOS

1 stop10h 20mAer Lingus

Deal found 4/30

$579

Sat 5/37:15 pmBOS - STN

1 stop10h 25mPLAY

Mon 5/511:40 amSTN - BOS

1 stop11h 10mPLAY

Deal found 4/29

$573

Sat 5/312:35 pmBOS - LGW

1 stop18h 10mIcelandair

Sat 5/101:00 pmLGW - BOS

1 stop10h 50mIcelandair

Deal found 4/30

$575

Mon 5/57:15 pmBOS - STN

1 stop10h 25mPLAY

Mon 5/1211:40 amSTN - BOS

1 stop11h 10mPLAY

Deal found 4/30

$574

Tue 5/68:05 pmBOS - LHR

Nonstop6h 45mIberia

Fri 5/1611:30 amLHR - BOS

1 stop13h 20mIberia

Deal found 4/29

$573

Tue 5/66:55 pmBOS - LHR

1 stop10h 05mAir Canada

Tue 5/138:45 amLHR - BOS

2 stops14h 12mAir Canada

Deal found 4/29

$575

Tue 5/69:40 pmBOS - LGW

1 stop15h 10mSWISS

Mon 5/126:35 pmLGW - BOS

1 stop25h 50mSWISS

Deal found 4/30

$584

Wed 5/79:30 amBOS - LGW

1 stop17h 40mBritish Airways

Mon 5/1211:35 amLGW - BOS

1 stop13h 15mBritish Airways

Deal found 4/30

$578

Thu 5/84:15 pmBOS - LGW

2 stops23h 45mMultiple Airlines

Tue 5/136:05 pmLGW - BOS

2 stops24h 50mMultiple Airlines

Deal found 4/30

$572

One-way flights from Maine to London
Search for one-way flight options from Maine to London. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Sat 5/1012:35 pmBOS - LHR

1 stop26h 45mIcelandair

Deal found 4/29

$258

Fri 5/97:15 pmBOS - STN

1 stop10h 25mPLAY

Deal found 4/30

$258

Tue 5/611:35 pmBOS - LTN

2 stops18h 20mMultiple Airlines

Deal found 4/30

$270

Fri 5/911:35 pmBOS - LGW

1 stop31h 10mIcelandair

Deal found 4/30

$275

Fri 7/258:15 pmBOS - LHR

Nonstop6h 50mVirgin Atlantic

Deal found 4/29

$281

Tue 7/156:00 amBOS - LGW

3 stops27h 40mMultiple Airlines

Deal found 4/30

$281

Wed 7/2310:40 pmBOS - LGW

2 stops16h 50mTAP AIR PORTUGAL

Deal found 4/30

$282

Wed 7/164:15 pmBOS - LHR

2 stops24h 45mMultiple Airlines

Deal found 4/29

$284

Sun 7/208:47 amBOS - LHR

2 stops17h 08mUnited Airlines

Deal found 4/30

$288

Fri 7/2510:40 amBOS - LHR

2 stops14h 50mAir Canada

Deal found 4/30

$290

Tue 5/611:35 pmBOS - STN

3 stops16h 40mMultiple Airlines

Deal found 4/30

$290

Mon 7/1411:15 pmBOS - LHR

2 stops13h 30mTAP AIR PORTUGAL

Deal found 4/30

$294

Cheapflights Fare Finder

Use the filters below to find and compare flights from Maine to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 5/11

8:50 pm-11:55 am

1 stop10h 05m

London Heathrow

Wed 5/21

8:50 pm-9:05 pm

1 stop29h 15m

$572

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Sun 10/5

9:51 pm-9:35 am

Nonstop6h 44m

London Gatwick

Sun 10/12

12:10 pm-3:13 pm

Nonstop8h 03m

$572

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 7/21

7:25 am-6:55 pm

Nonstop6h 30m

London Heathrow

Fri 8/22

2:40 pm-5:15 pm

Nonstop7h 35m

$573

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Tue 6/3

12:35 pm-2:40 pm

1 stop21h 05m

London Gatwick

Wed 6/11

3:40 pm-10:00 pm

1 stop11h 20m

$573

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 6/11

7:15 pm-10:40 am

1 stop10h 25m

London Stansted

Wed 6/18

11:40 am-5:50 pm

1 stop11h 10m

$573

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 9/1

5:40 pm-4:25 pm

2 stops17h 45m

London Heathrow

Mon 9/8

7:05 am-3:35 pm

2 stops37h 30m

$574

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 7/21

9:25 pm-4:05 pm

1 stop13h 40m

London Stansted

Mon 7/28

6:25 am-2:40 pm

1 stop13h 15m

$574

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 7/7

11:35 pm-8:20 pm

1 stop15h 45m

London Heathrow

Thu 7/17

9:25 pm-11:35 am

1 stop19h 10m

$575

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Sat 9/20

7:15 pm-1:35 pm

1 stop13h 20m

London Luton

Wed 9/24

6:15 am-5:50 pm

1 stop16h 35m

$575

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Tue 5/13

11:35 pm-2:40 pm

1 stop10h 05m

London Gatwick

Wed 5/21

1:00 pm-9:05 pm

1 stop13h 05m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 results

...

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 $1,103). 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?

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

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

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 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

7,934 reviews

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

7,934 reviews

Delta

8.0

Very good

7,934 reviews

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

285 reviews

Delta

8.0

Very good

7,934 reviews

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

1,334 reviews

Delta

8.0

Very good

7,934 reviews

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.

Austrian Airlines

7.6

Good

781 reviews

Delta

8.0

Very good

7,934 reviews

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

1,275 reviews

Delta

8.0

Very good

7,934 reviews

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

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 $258. Users have also found prices from $258 and $281 on PLAY and Virgin Atlantic, 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 $1,103). 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

Hayes

Hounslow

Thornton Heath

Luton

Horley

Canterbury

Harrow

Wembley

Dover

Gatwick

Orpington

Watford

Croydon

Borehamwood

Folkestone

Ilford

Aylesbury

Sutton

Chelmsford

Brentwood

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Maine to London

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$586	Average$678	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$611	Average$847	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$786	Average$886	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$789	Average$963	FlexibilityNo cancel fee	On-timeN/A

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$258+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Maine to London with Cheapflights

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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 May 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Maine to London

Cheapest flights from Maine to LondonExplore 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 May 1, 2025.

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 May 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Maine to London that are best for you.

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.

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?

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 May 1, 2025.

Rainfall in London by month

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

Temperature in London by month

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

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 May 1, 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.

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?

What are the most popular routes from Maine to London?

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

How can I find direct flights from Maine to London?

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

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

Traveling to a place near Maine?

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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.

Top 4 airlines flying from Maine to London

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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 May 1, 2025.