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Cheap flights from the United Kingdom to Portland from £522

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 20/3. 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.
United Airlines Logo
12:05 - 23:30LHR-PWM
16h 25m2 stops
United Airlines Logo
14:31 - 10:50PWM-LHR
15h 19m1 stop
£560United Airlines
Find Deal
Tue, 27 Jan - Tue, 10 Feb
Multiple Airlines Logo
10:35 - 22:54LHR-PWM
17h 19m1 stop
Multiple Airlines Logo
15:58 - 07:50PWM-LHR
10h 52m1 stop
£580Multiple Airlines
Find Deal
Tue, 27 Jan - Tue, 10 Feb
United Airlines Logo
07:40 - 18:50LHR-PWM
16h 10m2 stops
United Airlines Logo
14:31 - 10:25PWM-LHR
14h 54m2 stops
£617United Airlines
Find Deal
Thu, 8 Jan - Thu, 15 Jan
KLM Logo
12:40 - 00:20LHR-PWM
16h 40m1 stop
KLM Logo
14:35 - 10:15PWM-LHR
14h 40m1 stop
£621KLM
Find Deal
Tue, 6 Jan - Tue, 13 Jan
Virgin Atlantic Logo
16:35 - 22:27LHR-PWM
34h 52m2 stops
Virgin Atlantic Logo
05:30 - 06:55PWM-LHR
44h 25m2 stops
£626Virgin Atlantic
Find Deal
Tue, 6 Jan - Tue, 13 Jan
Scandinavian Airlines Logo
06:40 - 00:20LHR-PWM
22h 40m2 stops
Scandinavian Airlines Logo
14:35 - 16:25PWM-LHR
20h 50m3 stops
£632Scandinavian Airlines
Find Deal
Tue, 27 Jan - Tue, 10 Feb
Delta Logo
16:35 - 00:20LHR-PWM
12h 45m1 stop
Delta Logo
14:35 - 10:30PWM-LHR
14h 55m2 stops
£633Delta
Find Deal
Tue, 6 Jan - Tue, 13 Jan
Scandinavian Airlines Logo
06:40 - 00:20LHR-PWM
22h 40m3 stops
Scandinavian Airlines Logo
14:35 - 17:00PWM-LHR
21h 25m3 stops
£639Scandinavian Airlines
Find Deal
Tue, 27 Jan - Tue, 10 Feb
Delta Logo
13:00 - 00:10MAN-PWM
15h 10m1 stop
Delta Logo
14:30 - 10:10PWM-MAN
15h 40m2 stops
£726Delta
Find Deal
Wed, 11 Mar - Sun, 15 Mar
Virgin Atlantic Logo
13:25 - 22:27MAN-PWM
14h 02m1 stop
Virgin Atlantic Logo
05:30 - 10:30PWM-MAN
24h 00m1 stop
£735Virgin Atlantic
Find Deal
Fri, 9 Jan - Fri, 16 Jan

United Airlines flights from United Kingdom to Portland, Maine

Our best United Airlines deals on United Kingdom to Portland, Maine flight tickets
United Airlines
27 Jan
LHR12:05London Heathrow
16h 25m
2 stops
PWM23:30Portland
10 Feb
PWM14:31Portland
15h 19m
1 stop
LHR10:50London Heathrow
£560
Find similar
United Airlines
8 Jan
LHR16:00London Heathrow
12h 30m
1 stop
PWM23:30Portland
15 Jan
PWM15:12Portland
10h 08m
1 stop
LHR06:20London Heathrow
£617
Find similar
United Airlines
9 Jan
LHR07:25London Heathrow
16h 25m
2 stops
PWM18:50Portland
16 Jan
PWM15:12Portland
14h 38m
2 stops
LHR10:50London Heathrow
£646
Find similar

Scandinavian Airlines flights from United Kingdom to Portland, Maine

Our best Scandinavian Airlines deals on United Kingdom to Portland, Maine flight tickets
Scandinavian Airlines
27 Jan
LHR06:40London Heathrow
22h 40m
2 stops
PWM00:20Portland
10 Feb
PWM14:35Portland
20h 50m
3 stops
LHR16:25London Heathrow
£632
Find similar
Scandinavian Airlines
27 Jan
LHR06:40London Heathrow
22h 40m
3 stops
PWM00:20Portland
10 Feb
PWM14:35Portland
21h 25m
3 stops
LHR17:00London Heathrow
£639
Find similar
Scandinavian Airlines
9 Jan
LHR06:40London Heathrow
22h 40m
3 stops
PWM00:20Portland
16 Jan
PWM14:35Portland
22h 55m
3 stops
LHR18:30London Heathrow
£1,682
Find similar

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 27 November 2025.
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

Tue 27/1

12:05-23:30

2 stops16h 25m

Portland

Tue 10/2

14:31-10:50

1 stop15h 19m

£560

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 27/1

10:35-22:54

1 stop17h 19m

Portland

Tue 10/2

15:58-07:50

1 stop10h 52m

£580

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 8/1

07:40-18:50

2 stops16h 10m

Portland

Thu 15/1

14:31-10:25

2 stops14h 54m

£617

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 6/1

12:40-00:20

1 stop16h 40m

Portland

Tue 13/1

14:35-10:15

1 stop14h 40m

£621

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 6/1

16:35-22:27

2 stops34h 52m

Portland

Tue 13/1

05:30-06:55

2 stops44h 25m

£626

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 27/1

06:40-00:20

2 stops22h 40m

Portland

Tue 10/2

14:35-16:25

3 stops20h 50m

£632

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 6/1

16:35-00:20

1 stop12h 45m

Portland

Tue 13/1

14:35-10:30

2 stops14h 55m

£633

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 27/1

06:40-00:20

3 stops22h 40m

Portland

Tue 10/2

14:35-17:00

3 stops21h 25m

£639

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Wed 11/3

13:00-00:10

1 stop15h 10m

Portland

Sun 15/3

14:30-10:10

2 stops15h 40m

£726

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 9/1

13:25-22:27

1 stop14h 02m

Portland

Fri 16/1

05:30-10:30

1 stop24h 00m

£735

Flights are sorted by cheapest return 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 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 £526, 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 £547.

What is the cheapest day to depart on your flight to Portland, Maine?

According to our data, Monday is the cheapest day to fly to Portland, Maine from United Kingdom. The lowest ticket price found for a Monday departure recently was £648. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Portland, Maine on Friday is £791.

What is the cheapest time of day to depart on your flight to Portland, Maine?

Our data shows that the cheapest United Kingdom to Portland, Maine flights are usually those with departure times in the evening. Our users have found flights to Portland, Maine in the evening for as low as £607. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £798 on average. Flights to Portland, Maine from United Kingdom in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You could potentially save up to 14% 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

14h 27m

Direct flights

None
The fastest flight from United Kingdom to Portland, Maine takes 14h 27m
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
IcelandairPriceFrom £390Free CancellationRating
7.0
582 reviews
Search Icelandair flights
JetBluePriceFrom £405Free CancellationRating
7.2
2,904 reviews
Search JetBlue flights
Virgin AtlanticPriceFrom £479Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £480Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
KLMPriceFrom £508Free CancellationRating
7.7
1,423 reviews
Search KLM flights
LufthansaPriceFrom £521Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
United AirlinesPriceFrom £566Free CancellationRating
7.4
9,050 reviews
Search United Airlines flights
Aer LingusPriceFrom £629Free CancellationRating
7.2
1,382 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