What airlines fly to Portland, Maine?

British Airways, Delta and Virgin Atlantic are the top three most popular airlines that fly to Portland, Maine from London according to our data. British Airways is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 10 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London to Portland?

JetBlue and United Airlines are the most popular carriers operating from London to Portland

When did momondo last update prices for flights from London to Portland Airport?

Prices for flights from London to Portland Airport were last updated today.

How old do you have to be to fly from London to Portland Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$537 Cheap Flights from London to Portland, Maine in 2026

Find the cheapest flights from London to Portland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 am - 12:21 amLHR London Heathrow-PWM Portland

22h 41m2 stops Kastrup Copenhagen New York John F Kennedy Intl

6:00 am - 6:30 pmPWM Portland-LHR London Heathrow

31h 30m2 stops New York John F Kennedy Intl Kastrup Copenhagen

$841Scandinavian Airlines

Thu, Dec 3 - Sun, Dec 6

6:40 am - 12:21 amLHR London Heathrow-PWM Portland

22h 41m2 stops Kastrup Copenhagen New York John F Kennedy Intl

6:00 am - 6:30 pmPWM Portland-LHR London Heathrow

31h 30m2 stops New York John F Kennedy Intl Kastrup Copenhagen

$842Scandinavian Airlines

Thu, Dec 3 - Sun, Dec 6

11:20 am - 11:54 pmLHR London Heathrow-PWM Portland

17h 34m2 stops Lisbon Humberto Delgado New York John F Kennedy Intl

5:50 am - 7:10 amPWM Portland-LHR London Heathrow

21h 20m2 stops Newark Montreal Pierre Elliott Trudeau Intl

$949Multiple Airlines

Tue, Oct 20 - Mon, Oct 26

8:00 am - 11:54 pmLHR London Heathrow-PWM Portland

20h 54m2 stops Lisbon Humberto Delgado New York John F Kennedy Intl

6:00 am - 6:35 amPWM Portland-LHR London Heathrow

19h 35m2 stops Newark Toronto Pearson Intl

$960Multiple Airlines

Thu, Oct 15 - Mon, Oct 19

9:00 am - 11:59 pmLHR London Heathrow-PWM Portland

18h 59m2 stops Zurich Washington, D.C. Dulles Intl

7:35 pm - 8:35 pmPWM Portland-LHR London Heathrow

20h 00m2 stops Washington, D.C. Dulles Intl Newark

$998United Airlines

Mon, Oct 26 - Mon, Nov 2

6:30 am - 11:31 pmLHR London Heathrow-PWM Portland

22h 01m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

6:00 am - 7:10 amPWM Portland-LHR London Heathrow

20h 10m2 stops Newark Montreal Pierre Elliott Trudeau Intl

$1,008Multiple Airlines

Mon, Nov 23 - Fri, Nov 27

12:10 pm - 11:28 pmLHR London Heathrow-PWM Portland

16h 18m2 stops Zurich Newark

5:50 am - 8:35 pmPWM Portland-LHR London Heathrow

10h 45m1 stop Newark

$1,019United Airlines

Tue, Oct 20 - Mon, Oct 26

7:30 am - 7:25 pmLHR London Heathrow-PWM Portland

16h 55m2 stops Frankfurt am Main Newark

4:37 pm - 5:55 amPWM Portland-LHR London Heathrow

32h 18m1 stop Chicago O'Hare Intl

$1,025United Airlines

Thu, Dec 3 - Sun, Dec 6

9:30 am - 8:42 pmLHR London Heathrow-PWM Portland

16h 12m2 stops Frankfurt am Main Newark

7:55 pm - 8:35 pmPWM Portland-LHR London Heathrow

19h 40m1 stop Newark

$1,026United Airlines

Thu, Dec 3 - Sun, Dec 6

9:30 am - 8:42 pmLHR London Heathrow-PWM Portland

16h 12m2 stops Frankfurt am Main Newark

7:55 pm - 8:35 pmPWM Portland-LHR London Heathrow

19h 40m1 stop Newark

$1,027United Airlines

Thu, Dec 3 - Sun, Dec 6

Cheap last minute flights

Enter your travel dates to find the best prices.

1:25 pm - 11:54 pmLHR London Heathrow-PWM Portland

15h 29m2 stops Dublin New York John F Kennedy Intl

6:00 am - 1:30 pmPWM Portland-LHR London Heathrow

26h 30m2 stops New York John F Kennedy Intl Dublin

$1,129Aer Lingus

Thu, Sep 17 - Wed, Sep 23

8:10 pm - 11:54 pmLHR London Heathrow-PWM Portland

32h 44m2 stops Dublin New York John F Kennedy Intl

6:00 am - 12:40 pmPWM Portland-LHR London Heathrow

25h 40m2 stops New York John F Kennedy Intl Dublin

$1,133Aer Lingus

Thu, Sep 17 - Wed, Sep 23

6:00 am - 11:54 pmLHR London Heathrow-PWM Portland

22h 54m2 stops Lisbon Humberto Delgado New York John F Kennedy Intl

12:55 pm - 7:10 amPWM Portland-LHR London Heathrow

13h 15m1 stop Detroit Metropolitan Wayne County

$1,350Multiple Airlines

Thu, Sep 17 - Wed, Sep 23

5:10 pm - 11:28 pmLHR London Heathrow-PWM Portland

35h 18m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

2:10 pm - 7:15 amPWM Portland-LHR London Heathrow

12h 05m1 stop Atlanta Hartsfield-Jackson

$1,361Virgin Atlantic

Thu, Sep 17 - Wed, Sep 23

11:55 am - 11:54 pmLHR London Heathrow-PWM Portland

16h 59m1 stop New York John F Kennedy Intl

6:00 am - 8:45 pmPWM Portland-LHR London Heathrow

9h 45m1 stop New York John F Kennedy Intl

$1,363JetBlue

Thu, Sep 17 - Wed, Sep 23

7:05 am - 11:56 pmLHR London Heathrow-PWM Portland

21h 51m2 stops Oslo Gardermoen New York John F Kennedy Intl

6:02 am - 9:20 amPWM Portland-LHR London Heathrow

22h 18m3 stops New York John F Kennedy Intl Boston Logan Intl Kastrup Copenhagen

$1,832Scandinavian Airlines

Thu, Sep 17 - Wed, Sep 23

11:20 am - 11:54 pmLHR London Heathrow-PWM Portland

17h 34m2 stops Lisbon Humberto Delgado New York John F Kennedy Intl

6:53 pm - 5:45 pmPWM Portland-LHR London Heathrow

17h 52m3 stops Newark Porto Lisbon Humberto Delgado

$1,996Multiple Airlines

Thu, Sep 17 - Wed, Sep 23

7:05 am - 11:56 pmLHR London Heathrow-PWM Portland

21h 51m3 stops Oslo Gardermoen Kastrup Copenhagen New York John F Kennedy Intl

6:02 am - 9:20 amPWM Portland-LHR London Heathrow

22h 18m3 stops New York John F Kennedy Intl Boston Logan Intl Kastrup Copenhagen

$2,288Scandinavian Airlines

Thu, Sep 17 - Wed, Sep 23

7:05 am - 11:56 pmLHR London Heathrow-PWM Portland

21h 51m3 stops Oslo Gardermoen Kastrup Copenhagen New York John F Kennedy Intl

6:02 am - 4:00 pmPWM Portland-LHR London Heathrow

28h 58m3 stops New York John F Kennedy Intl Boston Logan Intl Kastrup Copenhagen

$2,291Scandinavian Airlines

Thu, Sep 17 - Wed, Sep 23

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Austrian Airlines flights from London to Portland, Maine

Our best Austrian Airlines deals on London to Portland, Maine flight tickets

Austrian Airlines

Oct 20

LHR12:00 pmLondon Heathrow

11h 12m

1 stop

PWM6:12 pmPortland

Oct 26

PWM10:50 amPortland

15h 30m

1 stop

LHR6:20 amLondon Heathrow

$1,041

Austrian Airlines

Oct 15

LHR7:45 amLondon Heathrow

15h 27m

1 stop

PWM6:12 pmPortland

Oct 19

PWM10:43 amPortland

14h 12m

1 stop

LHR5:55 amLondon Heathrow

$1,067

Austrian Airlines

Sep 19

LHR6:00 pmLondon Heathrow

29h 29m

1 stop

PWM6:29 pmPortland

Oct 3

PWM10:43 amPortland

14h 12m

1 stop

LHR5:55 amLondon Heathrow

$1,173

United Airlines flights from London to Portland, Maine

Our best United Airlines deals on London to Portland, Maine flight tickets

United Airlines

Oct 26

LHR9:00 amLondon Heathrow

18h 59m

2 stops

PWM11:59 pmPortland

Nov 2

PWM7:35 pmPortland

20h 00m

2 stops

LHR8:35 pmLondon Heathrow

$998

United Airlines

Oct 20

LHR12:10 pmLondon Heathrow

16h 18m

2 stops

PWM11:28 pmPortland

Oct 26

PWM5:50 amPortland

10h 45m

1 stop

LHR8:35 pmLondon Heathrow

$1,019

United Airlines

Dec 3

LHR7:30 amLondon Heathrow

16h 55m

2 stops

PWM7:25 pmPortland

Dec 6

PWM4:37 pmPortland

32h 18m

1 stop

LHR5:55 amLondon Heathrow

$1,025

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/3

6:40 am-12:21 am

2 stops22h 41m

Portland

Sun 12/6

6:00 am-6:30 pm

2 stops31h 30m

$841

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/3

6:40 am-12:21 am

2 stops22h 41m

Portland

Sun 12/6

6:00 am-6:30 pm

2 stops31h 30m

$842

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Tue 10/20

11:20 am-11:54 pm

2 stops17h 34m

Portland

Mon 10/26

5:50 am-7:10 am

2 stops21h 20m

$949

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 10/15

8:00 am-11:54 pm

2 stops20h 54m

Portland

Mon 10/19

6:00 am-6:35 am

2 stops19h 35m

$960

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Mon 10/26

9:00 am-11:59 pm

2 stops18h 59m

Portland

Mon 11/2

7:35 pm-8:35 pm

2 stops20h 00m

$998

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Mon 11/23

6:30 am-11:31 pm

2 stops22h 01m

Portland

Fri 11/27

6:00 am-7:10 am

2 stops20h 10m

$1,008

Quickest round-trip

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Tue 10/20

12:10 pm-11:28 pm

2 stops16h 18m

Portland

Mon 10/26

5:50 am-8:35 pm

1 stop10h 45m

$1,019

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/3

7:30 am-7:25 pm

2 stops16h 55m

Portland

Sun 12/6

4:37 pm-5:55 am

1 stop32h 18m

$1,025

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/3

9:30 am-8:42 pm

2 stops16h 12m

Portland

Sun 12/6

7:55 pm-8:35 pm

1 stop19h 40m

$1,026

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Thu 12/3

9:30 am-8:42 pm

2 stops16h 12m

Portland

Sun 12/6

7:55 pm-8:35 pm

1 stop19h 40m

$1,027

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from London is in December. Flight prices, which tend to average around $633, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of December, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $672.

When to book flights from London to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from London to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap London to Portland, Maine (LON to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Portland, Maine

Best Price Found	$537
Fastest flight time	17h 29m
Direct flights	None

The best one-way flight to Portland, Maine from London in the past 72 hours is $537. The best round-trip flight deal from London to Portland, Maine found on momondo in the last 72 hours is $841.

The fastest flight from London to Portland, Maine takes 17h 29m

There are no direct flights from London to Portland, Maine. There are no popular flight routes from London to Portland, Maine.

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Frequently asked questions about flying from London to Portland, Maine

How far is London to Portland by plane?
There are 3183.1 mi between London and Portland. By plane, this route typically takes 17h 29m.
When did momondo last update prices for flights from London to Portland Airport?
Prices for flights from London to Portland Airport were last updated today.
How old do you have to be to fly from London to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

North Conway

Jackson

Boothbay Harbor

Lewiston

Brunswick

Freeport

Auburn

Gorham

Conway

Bartlett

Windham

Bath

Intervale

Oxford

Georgetown

Falmouth

Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from London to Portland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Portland. momondo saves you time and could save you money on your trip.

Can I find flights from London to Portland with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Portland flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Portland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Portland.

I’m not ready to book a flight from London to Portland right now. Can momondo alert me if prices change?

Price alerts on flights to Portland from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portland, Maine trip

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Cheap flights from London to Portland from $537

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Portland departing on 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Big names and deals

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Austrian Airlines flights from London to Portland, Maine

Our best Austrian Airlines deals on London to Portland, Maine flight tickets

United Airlines flights from London to Portland, Maine

Our best United Airlines deals on London to Portland, Maine flight tickets

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How to get the cheapest flight ticket from London to Portland, Maine

What is the cheapest month to fly to Portland, Maine?

What is the cheapest airline that flies from London to Portland?

What airlines fly to Portland, Maine?

When to book flights from London to Portland, Maine

Cheap London to Portland, Maine (LON to PWM) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from London to Portland, Maine

Traveling to a place near Portland?

Why use momondo?

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maine

Fly your favorite airline to Portland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portland

List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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