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Cheap flights from London Heathrow Airport to Portland from $623

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from London Heathrow Airport to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Finnair Logo
7:30 am - 10:49 pmLHR  London Heathrow-PWM Portland
20h 19m2 stops Madrid Barajas Philadelphia
Finnair Logo
11:01 am - 9:05 amPWM  Portland-LHR London Heathrow
17h 04m2 stops Philadelphia Montreal Pierre Elliott Trudeau Intl
$994Finnair
Mon, Feb 8 - Mon, Feb 15
United Airlines Logo
12:05 pm - 11:24 pmLHR  London Heathrow-PWM Portland
16h 19m2 stops Zurich Newark
United Airlines Logo
9:12 am - 9:20 pmPWM  Portland-LHR London Heathrow
31h 08m1 stop Newark
$1,022United Airlines
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
12:05 pm - 11:24 pmLHR  London Heathrow-PWM Portland
16h 19m2 stops Zurich Newark
United Airlines Logo
9:12 am - 9:20 pmPWM  Portland-LHR London Heathrow
31h 08m1 stop Newark
$1,023United Airlines
Wed, Dec 2 - Sun, Dec 6
Austrian Airlines Logo
7:25 pm - 6:53 pmLHR  London Heathrow-PWM Portland
28h 28m2 stops Vienna Intl Newark
Austrian Airlines Logo
8:42 am - 6:20 amPWM  Portland-LHR London Heathrow
16h 38m1 stop Newark
$1,024Austrian Airlines
Mon, Feb 8 - Mon, Feb 15
United Airlines Logo
12:05 pm - 11:24 pmLHR  London Heathrow-PWM Portland
16h 19m2 stops Zurich Newark
United Airlines Logo
7:00 am - 7:10 amPWM  Portland-LHR London Heathrow
43h 10m2 stops Newark Montreal Pierre Elliott Trudeau Intl
$1,025United Airlines
Wed, Dec 2 - Sun, Dec 6
Multiple Airlines Logo
10:35 am - 10:49 pmLHR  London Heathrow-PWM Portland
17h 14m1 stop Philadelphia
Multiple Airlines Logo
6:00 am - 7:50 amPWM  Portland-LHR London Heathrow
20h 50m1 stop Atlanta Hartsfield-Jackson
$1,054Multiple Airlines
Mon, Feb 8 - Mon, Feb 15
United Airlines Logo
12:05 pm - 11:24 pmLHR  London Heathrow-PWM Portland
16h 19m2 stops Zurich Newark
United Airlines Logo
3:20 pm - 10:50 amPWM  Portland-LHR London Heathrow
14h 30m2 stops Newark Washington, D.C. Dulles Intl
$1,062United Airlines
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
12:05 pm - 11:24 pmLHR  London Heathrow-PWM Portland
16h 19m2 stops Zurich Newark
United Airlines Logo
3:20 pm - 10:50 amPWM  Portland-LHR London Heathrow
14h 30m2 stops Newark Washington, D.C. Dulles Intl
$1,063United Airlines
Wed, Dec 2 - Sun, Dec 6
Delta Logo
10:00 am - 12:21 amLHR  London Heathrow-PWM Portland
19h 21m2 stops Amsterdam Schiphol New York John F Kennedy Intl
Delta Logo
1:20 pm - 6:20 amPWM  Portland-LHR London Heathrow
12h 00m1 stop New York John F Kennedy Intl
$1,085Delta
Tue, Dec 15 - Tue, Dec 22
United Airlines Logo
12:00 pm - 7:25 pmLHR  London Heathrow-PWM Portland
12h 25m1 stop Newark
United Airlines Logo
4:47 pm - 12:00 pmPWM  Portland-LHR London Heathrow
14h 13m1 stop Chicago O'Hare Intl
$1,102United Airlines
Wed, Dec 2 - Sun, Dec 6

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Scandinavian Airlines flights from London Heathrow Airport to Portland, Maine

Our best Scandinavian Airlines deals on London Heathrow Airport to Portland, Maine flight tickets
Scandinavian Airlines
Dec 15
LHR6:40 amLondon Heathrow
22h 41m
2 stops
PWM12:21 amPortland
Dec 22
PWM1:20 pmPortland
20h 15m
3 stops
LHR2:35 pmLondon Heathrow
$1,630
Scandinavian Airlines
Feb 8
LHR6:40 amLondon Heathrow
22h 15m
2 stops
PWM11:55 pmPortland
Feb 15
PWM6:17 amPortland
29h 08m
3 stops
LHR4:25 pmLondon Heathrow
$1,928

United Airlines flights from London Heathrow Airport to Portland, Maine

Our best United Airlines deals on London Heathrow Airport to Portland, Maine flight tickets
United Airlines
Dec 2
LHR12:05 pmLondon Heathrow
16h 19m
2 stops
PWM11:24 pmPortland
Dec 6
PWM9:12 amPortland
31h 08m
1 stop
LHR9:20 pmLondon Heathrow
$1,022
United Airlines
Dec 2
LHR12:05 pmLondon Heathrow
16h 19m
2 stops
PWM11:24 pmPortland
Dec 6
PWM9:12 amPortland
31h 08m
1 stop
LHR9:20 pmLondon Heathrow
$1,023
United Airlines
Dec 2
LHR12:05 pmLondon Heathrow
16h 19m
2 stops
PWM11:24 pmPortland
Dec 6
PWM7:00 amPortland
43h 10m
2 stops
LHR7:10 amLondon Heathrow
$1,025

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Mon 2/8

7:30 am-10:49 pm

2 stops20h 19m

Portland

Mon 2/15

11:01 am-9:05 am

2 stops17h 04m

$994

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 12/2

12:05 pm-11:24 pm

2 stops16h 19m

Portland

Sun 12/6

9:12 am-9:20 pm

1 stop31h 08m

$1,022

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 12/2

12:05 pm-11:24 pm

2 stops16h 19m

Portland

Sun 12/6

9:12 am-9:20 pm

1 stop31h 08m

$1,023

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Mon 2/8

7:25 pm-6:53 pm

2 stops28h 28m

Portland

Mon 2/15

8:42 am-6:20 am

1 stop16h 38m

$1,024

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 12/2

12:05 pm-11:24 pm

2 stops16h 19m

Portland

Sun 12/6

7:00 am-7:10 am

2 stops43h 10m

$1,025

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Mon 2/8

10:35 am-10:49 pm

1 stop17h 14m

Portland

Mon 2/15

6:00 am-7:50 am

1 stop20h 50m

$1,054

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 12/2

12:05 pm-11:24 pm

2 stops16h 19m

Portland

Sun 12/6

3:20 pm-10:50 am

2 stops14h 30m

$1,062

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 12/2

12:05 pm-11:24 pm

2 stops16h 19m

Portland

Sun 12/6

3:20 pm-10:50 am

2 stops14h 30m

$1,063

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Tue 12/15

10:00 am-12:21 am

2 stops19h 21m

Portland

Tue 12/22

1:20 pm-6:20 am

1 stop12h 00m

$1,085
Quickest round-trip

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 12/2

12:00 pm-7:25 pm

1 stop12h 25m

Portland

Sun 12/6

4:47 pm-12:00 pm

1 stop14h 13m

$1,102

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from London Heathrow Airport 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

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

The cheapest month to fly to Portland, Maine from London Heathrow Airport is in November. Flight prices, which tend to average around $0, 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 November, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $729.

When to book flights from London Heathrow Airport to Portland, Maine

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

Cheap London Heathrow Airport to Portland, Maine (LHR to PWM) flight deals and tips

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

Best Price Found

$623

Fastest flight time

16h 19m

Direct flights

None
The best one-way flight to Portland, Maine from London Heathrow Airport in the past 72 hours is $623. The best round-trip flight deal from London Heathrow Airport to Portland, Maine found on momondo in the last 72 hours is $994.
The fastest flight from London Heathrow Airport to Portland, Maine takes 16h 19m
There are no direct flights from London Heathrow Airport to Portland, Maine. There are no popular flight routes from London Heathrow Airport to Portland, Maine.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Portland, Maine

  • How far is London Heathrow to Portland by plane?

    A flight from London Heathrow to Portland will travel around 3170.3 mi. A reasonable flight in good conditions will take 16h 19m.

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

    Prices for flights from London Heathrow Airport to Portland Airport are updated daily.

  • How old do you have to be to fly from London Heathrow Airport 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 Heathrow Airport to Portland Airport.

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

    The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Jackson
Boothbay Harbor
Brunswick
Lewiston
Freeport
Conway
Gorham
Auburn
Bartlett
Bath
Windham
Intervale
Georgetown
Oxford
Falmouth
Tamworth

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Portland for you.

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?

Of course. momondo tracks the price of London to Portland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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