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Cheap flights from the United Kingdom to Portland from £381

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 29/4. 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
0 bags

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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
11:55 - 13:23
LHR
-
PWM
30h 28m
1 stop
JetBlue Logo
14:18 - 20:45
PWM
-
LHR
25h 27m
1 stop
£486JetBlue
Fri, 15 May - Sun, 17 May
Virgin Atlantic Logo
12:30 - 23:06
LHR
-
PWM
15h 36m
1 stop
Virgin Atlantic Logo
05:31 - 06:25
PWM
-
LHR
19h 54m
1 stop
£518Virgin Atlantic
Tue, 24 Feb - Tue, 3 Mar
Virgin Atlantic Logo
08:55 - 23:06
LHR
-
PWM
19h 11m
1 stop
Virgin Atlantic Logo
05:31 - 06:20
PWM
-
LHR
19h 49m
2 stops
£531Virgin Atlantic
Tue, 24 Feb - Tue, 3 Mar
Delta Logo
06:30 - 23:22
LHR
-
PWM
20h 52m
2 stops
Delta Logo
12:51 - 07:50
PWM
-
LHR
14h 59m
2 stops
£534Delta
Wed, 11 Mar - Wed, 18 Mar
American Airlines Logo
12:35 - 23:34
LHR
-
PWM
14h 59m
1 stop
American Airlines Logo
17:58 - 10:25
PWM
-
LHR
12h 27m
1 stop
£545American Airlines
Wed, 11 Mar - Wed, 18 Mar
KLM Logo
10:45 - 23:22
LHR
-
PWM
16h 37m
1 stop
KLM Logo
14:30 - 10:15
PWM
-
LHR
15h 45m
1 stop
£559KLM
Thu, 12 Mar - Thu, 19 Mar
Delta Logo
11:45 - 00:20
LHR
-
PWM
17h 35m
2 stops
Delta Logo
14:35 - 06:20
PWM
-
LHR
10h 45m
1 stop
£564Delta
Fri, 6 Feb - Mon, 9 Feb
KLM Logo
09:25 - 23:59
EDI
-
PWM
18h 34m
2 stops
KLM Logo
06:25 - 08:45
PWM
-
EDI
22h 20m
1 stop
£621KLM
Thu, 12 Mar - Thu, 19 Mar
United Airlines Logo
05:55 - 23:59
MAN
-
PWM
23h 04m
2 stops
United Airlines Logo
15:39 - 10:25
PWM
-
MAN
13h 46m
2 stops
£716United Airlines
Thu, 7 May - Mon, 11 May
United Airlines Logo
12:30 - 23:28
EDI
-
PWM
15h 58m
2 stops
United Airlines Logo
15:22 - 10:35
PWM
-
EDI
14h 13m
2 stops
£1,534United Airlines
Tue, 21 Apr - Sat, 25 Apr

KLM flights from United Kingdom to Portland, Maine

Our best KLM deals on United Kingdom to Portland, Maine flight tickets
KLM
12 Mar
LHR10:45London Heathrow
16h 37m
1 stop
PWM23:22Portland
19 Mar
PWM14:30Portland
15h 45m
1 stop
LHR10:15London Heathrow
£559
KLM
12 Mar
EDI09:25Edinburgh Turnhouse
18h 34m
2 stops
PWM23:59Portland
19 Mar
PWM06:25Portland
22h 20m
1 stop
EDI08:45Edinburgh Turnhouse
£621
KLM
20 Jul
LHR20:55London Heathrow
32h 04m
2 stops
PWM23:59Portland
3 Aug
PWM18:50Portland
16h 25m
2 stops
LHR16:15London Heathrow
£936

Delta flights from United Kingdom to Portland, Maine

Our best Delta deals on United Kingdom to Portland, Maine flight tickets
Delta
6 Feb
LHR11:45London Heathrow
17h 35m
2 stops
PWM00:20Portland
9 Feb
PWM14:35Portland
10h 45m
1 stop
LHR06:20London Heathrow
£564
Delta
15 May
LHR11:45London Heathrow
17h 14m
2 stops
PWM23:59Portland
17 May
PWM14:35Portland
19h 00m
1 stop
LHR14:35London Heathrow
£576
Delta
13 Mar
MAN13:25Manchester
13h 57m
1 stop
PWM23:22Portland
20 Mar
PWM14:30Portland
21h 35m
2 stops
MAN16:05Manchester
£682

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 28 January 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

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 15/5

11:55-13:23

1 stop30h 28m

Portland

Sun 17/5

14:18-20:45

1 stop25h 27m

£486

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 24/2

12:30-23:06

1 stop15h 36m

Portland

Tue 3/3

05:31-06:25

1 stop19h 54m

£518

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 24/2

08:55-23:06

1 stop19h 11m

Portland

Tue 3/3

05:31-06:20

2 stops19h 49m

£531

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 11/3

06:30-23:22

2 stops20h 52m

Portland

Wed 18/3

12:51-07:50

2 stops14h 59m

£534

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 11/3

12:35-23:34

1 stop14h 59m

Portland

Wed 18/3

17:58-10:25

1 stop12h 27m

£545

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 12/3

10:45-23:22

1 stop16h 37m

Portland

Thu 19/3

14:30-10:15

1 stop15h 45m

£559

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 6/2

11:45-00:20

2 stops17h 35m

Portland

Mon 9/2

14:35-06:20

1 stop10h 45m

£564

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Thu 12/3

09:25-23:59

2 stops18h 34m

Portland

Thu 19/3

06:25-08:45

1 stop22h 20m

£621

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 7/5

05:55-23:59

2 stops23h 04m

Portland

Mon 11/5

15:39-10:25

2 stops13h 46m

£716

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Tue 21/4

12:30-23:28

2 stops15h 58m

Portland

Sat 25/4

15:22-10:35

2 stops14h 13m

£1,534

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 October. Flight prices, which tend to average around £505, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Portland, Maine, with average flight prices from United Kingdom averaging around £513.

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

You could potentially save up to 32% 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 57m

Direct flights

None
The fastest flight from United Kingdom to Portland, Maine takes 13h 57m
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

  • 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
JetBluePriceFrom £140Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
FinnairPriceFrom £461Free CancellationRating
7.6
1,356 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £461Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
IcelandairPriceFrom £478Free CancellationRating
7.1
603 reviews
Search Icelandair flights
KLMPriceFrom £489Free CancellationRating
7.7
1,443 reviews
Search KLM flights
United AirlinesPriceFrom £544Free CancellationRating
7.4
9,213 reviews
Search United Airlines flights
Aer LingusPriceFrom £604Free CancellationRating
7.2
1,442 reviews
Search Aer Lingus 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