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Cheap flights from London Heathrow Airport to Portland from $536

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.
JetBlue Logo
8:15 am - 11:43 pmLHR  London Heathrow-PWM Portland
20h 28m1 stop New York John F Kennedy Intl
JetBlue Logo
6:30 am - 9:30 amPWM  Portland-LHR London Heathrow
22h 00m1 stop New York John F Kennedy Intl
$819JetBlue
Sun, Nov 1 - Sun, Nov 8
JetBlue Logo
7:25 am - 11:43 pmLHR  London Heathrow-PWM Portland
20h 18m1 stop New York John F Kennedy Intl
JetBlue Logo
6:30 am - 9:40 pmPWM  Portland-LHR London Heathrow
10h 10m1 stop New York John F Kennedy Intl
$823JetBlue
Wed, Oct 28 - Wed, Nov 4
Scandinavian Airlines Logo
6:40 am - 11:49 pmLHR  London Heathrow-PWM Portland
22h 09m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
2:35 pm - 4:25 pmPWM  Portland-LHR London Heathrow
20h 50m3 stops New York John F Kennedy Intl Kastrup Copenhagen Oslo Gardermoen
$827Scandinavian Airlines
Tue, Feb 2 - Tue, Feb 9
Scandinavian Airlines Logo
6:40 am - 12:21 amLHR  London Heathrow-PWM Portland
22h 41m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
6:00 am - 6:30 pmPWM  Portland-LHR London Heathrow
31h 30m2 stops New York John F Kennedy Intl Kastrup Copenhagen
$836Scandinavian Airlines
Thu, Dec 3 - Sun, Dec 6
Scandinavian Airlines Logo
6:40 am - 12:21 amLHR  London Heathrow-PWM Portland
22h 41m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
6:00 am - 6:30 pmPWM  Portland-LHR London Heathrow
31h 30m2 stops New York John F Kennedy Intl Kastrup Copenhagen
$837Scandinavian Airlines
Thu, Dec 3 - Sun, Dec 6
Scandinavian Airlines Logo
6:40 am - 12:21 amLHR  London Heathrow-PWM Portland
22h 41m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
6:00 am - 6:30 pmPWM  Portland-LHR London Heathrow
31h 30m2 stops New York John F Kennedy Intl Kastrup Copenhagen
$839Scandinavian Airlines
Thu, Dec 3 - Sun, Dec 6
Scandinavian Airlines Logo
6:40 am - 12:21 amLHR  London Heathrow-PWM Portland
22h 41m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
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
Scandinavian Airlines Logo
6:40 am - 12:10 amLHR  London Heathrow-PWM Portland
21h 30m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
2:33 pm - 9:20 amPWM  Portland-LHR London Heathrow
13h 47m2 stops New York John F Kennedy Intl Kastrup Copenhagen
$844Scandinavian Airlines
Sat, Oct 31 - Sat, Nov 7
JetBlue Logo
12:20 pm - 11:43 pmLHR  London Heathrow-PWM Portland
15h 23m1 stop New York John F Kennedy Intl
JetBlue Logo
6:30 am - 9:40 pmPWM  Portland-LHR London Heathrow
10h 10m1 stop New York John F Kennedy Intl
$848JetBlue
Sat, Oct 31 - Sat, Nov 7
Scandinavian Airlines Logo
6:40 am - 12:10 amLHR  London Heathrow-PWM Portland
21h 30m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
2:33 pm - 6:50 pmPWM  Portland-LHR London Heathrow
23h 17m3 stops New York John F Kennedy Intl Kastrup Copenhagen Oslo Gardermoen
$878Scandinavian Airlines
Sat, Oct 31 - Sat, Nov 7

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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
Oct 28
LHR9:30 amLondon Heathrow
17h 51m
2 stops
PWM11:21 pmPortland
Nov 4
PWM2:05 pmPortland
14h 05m
2 stops
LHR9:10 amLondon Heathrow
$985
United Airlines
Feb 2
LHR7:30 amLondon Heathrow
15h 43m
2 stops
PWM6:13 pmPortland
Feb 9
PWM7:43 pmPortland
19h 52m
1 stop
LHR8:35 pmLondon Heathrow
$991
United Airlines
Oct 14
LHR7:25 amLondon Heathrow
16h 59m
2 stops
PWM7:24 pmPortland
Oct 21
PWM10:43 amPortland
17h 37m
1 stop
LHR9:20 amLondon Heathrow
$999

JetBlue flights from London Heathrow Airport to Portland, Maine

Our best JetBlue deals on London Heathrow Airport to Portland, Maine flight tickets
JetBlue
Nov 1
LHR8:15 amLondon Heathrow
20h 28m
1 stop
PWM11:43 pmPortland
Nov 8
PWM6:30 amPortland
22h 00m
1 stop
LHR9:30 amLondon Heathrow
$819
JetBlue
Oct 28
LHR7:25 amLondon Heathrow
20h 18m
1 stop
PWM11:43 pmPortland
Nov 4
PWM6:30 amPortland
10h 10m
1 stop
LHR9:40 pmLondon Heathrow
$823
JetBlue
Oct 31
LHR12:20 pmLondon Heathrow
15h 23m
1 stop
PWM11:43 pmPortland
Nov 7
PWM6:30 amPortland
10h 10m
1 stop
LHR9:40 pmLondon Heathrow
$848

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Sun 11/1

8:15 am-11:43 pm

1 stop20h 28m

Portland

Sun 11/8

6:30 am-9:30 am

1 stop22h 00m

$819

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Wed 10/28

7:25 am-11:43 pm

1 stop20h 18m

Portland

Wed 11/4

6:30 am-9:40 pm

1 stop10h 10m

$823

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Tue 2/2

6:40 am-11:49 pm

2 stops22h 09m

Portland

Tue 2/9

2:35 pm-4:25 pm

3 stops20h 50m

$827

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

$836

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

$837

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

$839

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

Sat 10/31

6:40 am-12:10 am

2 stops21h 30m

Portland

Sat 11/7

2:33 pm-9:20 am

2 stops13h 47m

$844
Quickest round-trip

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Sat 10/31

12:20 pm-11:43 pm

1 stop15h 23m

Portland

Sat 11/7

6:30 am-9:40 pm

1 stop10h 10m

$848

LondonPortland

LHR London Heathrow - PWM Portland

LHRPWM

London Heathrow

Sat 10/31

6:40 am-12:10 am

2 stops21h 30m

Portland

Sat 11/7

2:33 pm-6:50 pm

3 stops23h 17m

$878

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 December. 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 December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $638.

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

$536

Fastest flight time

21h 30m

Direct flights

None
The best one-way flight to Portland, Maine from London Heathrow Airport in the past 72 hours is $536. The best round-trip flight deal from London Heathrow Airport to Portland, Maine found on momondo in the last 72 hours is $819.
The fastest flight from London Heathrow Airport to Portland, Maine takes 21h 30m
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 21h 30m.

  • 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
Auburn
Conway
Bartlett
Gorham
Bath
Windham
Intervale
Oxford
Georgetown
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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