Cheap flights from Maine to London (LON) from $317

This is the cheapest one-way flight price, found on 5/29. Prices may vary by date and flight preferences.
PWM — LON
Jun 4 — Jun 111
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Cheap flights from Maine to London in May, June 2023

The best prices found for Maine to LON flights for May, June
These are some of the best deals we've found on flights to London in 2023 at this time. If these deals don't appeal to you, be sure to come back soon for more options.

Maine to London 2023 flight deals

Cheap flights to London from Maine found for this year
These are some of the best deals we've found on flights to London in 2023 at this time. If these deals don't appeal to you, be sure to come back soon for more options.

Cheap American Airlines flights from Maine to London

Check out some of the cheapest American Airlines flights we've come across from Maine to London. It's recommended that users confirm their flight details before booking.

Cheap Air Canada flights from Maine to London

Some of the lowest-priced Air Canada flights we've found at this time heading from Maine to London. Deals frequently update to provide users with more options.

One-way flights to London from Maine

The cheapest one-way flights from Maine to London
If you're seeking multiple options on one-way flights from Maine to London, be sure to check out these deals, which are updated often. Users can also find round-trip Maine to London flights by using the search form above.

Find flights from Maine to London within your budget

Use the slider to find flights from Maine to London that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$735 - $1,443

Route

Depart

Return

Price

BangorLondon Heathrow

BGR - LHR

BGRLHR

Bangor

Tue 9/19

1 stop15h 15m

London Heathrow

Mon 9/25

2 stops30h 20m

PortlandLondon Heathrow

PWM - LHR

PWMLHR

Portland

Sun 10/1

2 stops19h 29m

London Heathrow

Tue 10/10

2 stops16h 32m

BangorLondon Heathrow

BGR - LHR

BGRLHR

Bangor

Tue 9/19

2 stops18h 23m

London Heathrow

Mon 9/25

2 stops26h 59m

PortlandLondon Heathrow

PWM - LHR

PWMLHR

Portland

Tue 8/15

2 stops19h 30m

London Heathrow

Tue 8/22

2 stops20h 26m

BangorLondon Heathrow

BGR - LHR

BGRLHR

Bangor

Tue 9/19

1 stop19h 20m

London Heathrow

Mon 9/25

1 stop11h 03m

PortlandLondon Heathrow

PWM - LHR

PWMLHR

Portland

Thu 7/27

1 stop19h 25m

London Heathrow

Mon 8/7

1 stop11h 32m

PortlandLondon Heathrow

PWM - LHR

PWMLHR

Portland

Sat 9/30

1 stop28h 00m

London Heathrow

Sun 10/8

1 stop12h 52m

PortlandLondon Gatwick

PWM - LGW

PWMLGW

Portland

Tue 8/15

2 stops24h 50m

London Gatwick

Tue 8/22

2 stops45h 27m

PortlandLondon Gatwick

PWM - LGW

PWMLGW

Portland

Sat 9/30

2 stops35h 30m

London Gatwick

Mon 10/9

2 stops22h 35m

Flights are sorted by cheapest first

Deals found on 5/29

Reviews of Airlines Servicing London

Get a feel of what it's like to fly with American Airlines, Air Canada and United Airlines 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
2,363 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

It was very late leaving. Over 40 minutes. No AC very stuffy and plane areas around me were not clean.

Delta
8.0
Very good
2,363 reviews
Delta
8.0
Very good
2,363 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

It was very late leaving. Over 40 minutes. No AC very stuffy and plane areas around me were not clean.

United Airlines
7.6
Good
1,525 reviews
Delta
8.0
Very good
2,363 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

It was very late leaving. Over 40 minutes. No AC very stuffy and plane areas around me were not clean.

KLM
7.6
Good
159 reviews
Delta
8.0
Very good
2,363 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

It was very late leaving. Over 40 minutes. No AC very stuffy and plane areas around me were not clean.

Austrian Airlines
7.5
Good
150 reviews
Delta
8.0
Very good
2,363 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

It was very late leaving. Over 40 minutes. No AC very stuffy and plane areas around me were not clean.

JetBlue
7.5
Good
606 reviews
Delta
8.0
Very good
2,363 reviews

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.2

Reviews

1 / 10

It was very late leaving. Over 40 minutes. No AC very stuffy and plane areas around me were not clean.

Related info for your journey

Useful info, stats and facts about Maine to London flights.

Top 3 airlines flying from Maine to London

The chart below displays the airlines Cheapflights users traveling from Maine to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
DeltaCheapest$647Average$827FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
United AirlinesCheapest$687Average$799FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$711Average$1,021FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights