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Cheap flights from the United Kingdom to Portland from £336

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Portland departing on 31/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United Kingdom to Portland

Recent return flight deals from the United Kingdom to Portland

Enter your travel dates to find the best prices.
JetBlue Logo
08:15 - 00:25
LHR
-
PWM
21h 10m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£488JetBlue
Fri, 4 Sep - Wed, 16 Sep
JetBlue Logo
11:55 - 00:25
LHR
-
PWM
17h 30m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£515JetBlue
Thu, 3 Sep - Wed, 9 Sep
JetBlue Logo
08:15 - 00:25
LHR
-
PWM
21h 10m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£517JetBlue
Fri, 4 Sep - Fri, 18 Sep
Scandinavian Airlines Logo
07:05 - 00:59
LHR
-
PWM
22h 54m
2 stops
Scandinavian Airlines Logo
06:02 - 09:35
PWM
-
LHR
22h 33m
2 stops
£546Scandinavian Airlines
Thu, 3 Sep - Wed, 9 Sep
Scandinavian Airlines Logo
19:10 - 23:56
EDI
-
PWM
33h 46m
2 stops
Scandinavian Airlines Logo
14:35 - 18:25
PWM
-
EDI
22h 50m
2 stops
£596Scandinavian Airlines
Mon, 28 Sep - Sat, 3 Oct
Multiple Airlines Logo
11:00 - 00:25
MAN
-
PWM
18h 25m
2 stops
Multiple Airlines Logo
06:00 - 17:05
PWM
-
MAN
30h 05m
2 stops
£773Multiple Airlines
Wed, 2 Sep - Wed, 9 Sep
United Airlines Logo
09:40 - 18:29
EDI
-
PWM
13h 49m
1 stop
United Airlines Logo
18:53 - 08:05
PWM
-
EDI
32h 12m
1 stop
£775United Airlines
Wed, 16 Sep - Sun, 20 Sep
United Airlines Logo
12:30 - 19:24
EDI
-
PWM
11h 54m
1 stop
United Airlines Logo
15:43 - 11:50
PWM
-
EDI
15h 07m
2 stops
£781United Airlines
Wed, 9 Sep - Tue, 15 Sep
American Airlines Logo
10:30 - 10:17
EDI
-
PWM
28h 47m
1 stop
American Airlines Logo
16:31 - 22:50
PWM
-
EDI
25h 19m
2 stops
£828American Airlines
Tue, 15 Sep - Sun, 20 Sep
Multiple Airlines Logo
09:10 - 22:48
NCL
-
PWM
18h 38m
2 stops
Multiple Airlines Logo
15:06 - 10:00
PWM
-
NCL
13h 54m
2 stops
£1,058Multiple Airlines
Tue, 18 Aug - Tue, 25 Aug

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Scandinavian Airlines flights from United Kingdom to Portland, Maine

Our best Scandinavian Airlines deals on United Kingdom to Portland, Maine flight tickets
Scandinavian Airlines
3 Sept
LHR07:05London Heathrow
22h 54m
2 stops
PWM00:59Portland
9 Sept
PWM06:02Portland
22h 33m
2 stops
LHR09:35London Heathrow
£546
Scandinavian Airlines
3 Sept
LHR17:30London Heathrow
36h 29m
2 stops
PWM00:59Portland
9 Sept
PWM06:02Portland
22h 33m
2 stops
LHR09:35London Heathrow
£565
Scandinavian Airlines
4 Sept
LHR07:05London Heathrow
22h 54m
2 stops
PWM00:59Portland
18 Sept
PWM06:02Portland
27h 33m
2 stops
LHR14:35London Heathrow
£575

Finnair flights from United Kingdom to Portland, Maine

Our best Finnair deals on United Kingdom to Portland, Maine flight tickets
Finnair
16 Nov
LHR08:45London Heathrow
19h 12m
2 stops
PWM22:57Portland
30 Nov
PWM18:47Portland
33h 18m
2 stops
LHR09:05London Heathrow
£671
Finnair
2 Nov
LHR16:45London Heathrow
35h 12m
2 stops
PWM22:57Portland
15 Nov
PWM18:47Portland
32h 03m
1 stop
LHR07:50London Heathrow
£677
Finnair
1 Sept
LHR10:05London Heathrow
16h 16m
2 stops
PWM21:21Portland
8 Sept
PWM14:42Portland
14h 33m
2 stops
LHR10:15London Heathrow
£690

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Portland, Maine that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 24 July 2026.
Use the filters below to find and compare flights from the United Kingdom to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 4/9

08:15-00:25

1 stop21h 10m

Portland

Wed 16/9

06:00-20:45

1 stop9h 45m

£488

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 3/9

11:55-00:25

1 stop17h 30m

Portland

Wed 9/9

06:00-20:45

1 stop9h 45m

£515

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 4/9

08:15-00:25

1 stop21h 10m

Portland

Fri 18/9

06:00-20:45

1 stop9h 45m

£517

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 3/9

07:05-00:59

2 stops22h 54m

Portland

Wed 9/9

06:02-09:35

2 stops22h 33m

£546

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Mon 28/9

19:10-23:56

2 stops33h 46m

Portland

Sat 3/10

14:35-18:25

2 stops22h 50m

£596

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Wed 2/9

11:00-00:25

2 stops18h 25m

Portland

Wed 9/9

06:00-17:05

2 stops30h 05m

£773

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Wed 16/9

09:40-18:29

1 stop13h 49m

Portland

Sun 20/9

18:53-08:05

1 stop32h 12m

£775
Fastest return journey

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Wed 9/9

12:30-19:24

1 stop11h 54m

Portland

Tue 15/9

15:43-11:50

2 stops15h 07m

£781

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Tue 15/9

10:30-10:17

1 stop28h 47m

Portland

Sun 20/9

16:31-22:50

2 stops25h 19m

£828

Newcastle upon TynePortland

NCL - PWM

NCLPWM

Newcastle upon Tyne

Tue 18/8

09:10-22:48

2 stops18h 38m

Portland

Tue 25/8

15:06-10:00

2 stops13h 54m

£1,058

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Portland from

How to get the cheapest flight ticket from United Kingdom 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 United Kingdom is in February. Flight prices, which tend to average around £503, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Portland, Maine, with average flight prices from United Kingdom averaging around £558.

Can stopping save me money on United Kingdom to Portland, Maine flights?

You could potentially save up to 4% on your flight if you consider stops on a United Kingdom to Portland, Maine flight.

Cheap United Kingdom to Portland, Maine flight deals and tips

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

Fastest flight time

13h 56m

Direct flights

None
The fastest flight from United Kingdom to Portland, Maine takes 13h 56m
There are no direct flights from United Kingdom to Portland, Maine. There are no popular flight routes from United Kingdom to Portland, Maine.
Search flight deals

Frequently asked questions about flying from the United Kingdom to Portland, Maine

  • When did momondo last update prices for flights from United Kingdom to Portland Airport?

    Prices for flights from United Kingdom to Portland Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United Kingdom to Portland Airport?

  • How old do you have to be to fly from United Kingdom to Portland Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom 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.

Best airlines flying from United Kingdom to Portland, Maine

Compare and see reviews for airlines that fly from United Kingdom to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom £546Free CancellationRating
7.4
10,026 reviews
Search United Airlines flights
KLMPriceFrom £554Free CancellationRating
7.8
1,544 reviews
Search KLM flights

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Bath

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from United Kingdom.

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

All flight searches from United Kingdom to Portland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from United Kingdom to Portland?

Once all potential United Kingdom to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from United Kingdom to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

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Airports servicing Maine

Bangor Airport