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Cheap flights from the United Kingdom to Portland from £490

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 14/12. 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 - 23:36LHR-PWM
16h 41m1 stop
JetBlue Logo
06:00 - 20:45PWM-LHR
9h 45m1 stop
£513JetBlue
Find Deal
Tue, 21 Apr - Mon, 27 Apr
JetBlue Logo
11:55 - 23:36LHR-PWM
16h 41m1 stop
JetBlue Logo
06:00 - 20:45PWM-LHR
9h 45m1 stop
£533JetBlue
Find Deal
Wed, 22 Apr - Mon, 27 Apr
Icelandair Logo
08:25 - 13:23LHR-PWM
33h 58m2 stops
Icelandair Logo
06:00 - 20:45PWM-LHR
9h 45m1 stop
£541Icelandair
Find Deal
Mon, 20 Apr - Fri, 24 Apr
JetBlue Logo
11:55 - 23:36LHR-PWM
16h 41m1 stop
JetBlue Logo
06:00 - 20:45PWM-LHR
9h 45m1 stop
£543JetBlue
Find Deal
Tue, 21 Apr - Sun, 26 Apr
JetBlue Logo
11:55 - 23:36LHR-PWM
16h 41m1 stop
JetBlue Logo
14:20 - 09:30PWM-LHR
14h 10m1 stop
£564JetBlue
Find Deal
Wed, 22 Apr - Sun, 26 Apr
Icelandair Logo
08:25 - 13:23LHR-PWM
33h 58m2 stops
Icelandair Logo
06:00 - 06:30PWM-LHR
19h 30m2 stops
£583Icelandair
Find Deal
Mon, 20 Apr - Fri, 24 Apr
United Airlines Logo
07:30 - 18:50LHR-PWM
16h 20m2 stops
United Airlines Logo
15:12 - 06:20PWM-LHR
10h 08m1 stop
£599United Airlines
Find Deal
Thu, 8 Jan - Thu, 22 Jan
Austrian Airlines Logo
18:00 - 18:50LHR-PWM
29h 50m1 stop
Austrian Airlines Logo
08:40 - 08:25PWM-LHR
18h 45m1 stop
£605Austrian Airlines
Find Deal
Thu, 8 Jan - Thu, 22 Jan
United Airlines Logo
06:00 - 18:50MAN-PWM
17h 50m2 stops
United Airlines Logo
14:31 - 12:20PWM-MAN
16h 49m2 stops
£711United Airlines
Find Deal
Thu, 8 Jan - Thu, 22 Jan
Virgin Atlantic Logo
13:30 - 22:29MAN-PWM
13h 59m1 stop
Virgin Atlantic Logo
05:30 - 10:30PWM-MAN
24h 00m1 stop
£714Virgin Atlantic
Find Deal
Thu, 8 Jan - Thu, 22 Jan

Delta flights from United Kingdom to Portland, Maine

Our best Delta deals on United Kingdom to Portland, Maine flight tickets
Delta
27 Mar
MAN09:05Manchester
18h 44m
2 stops
PWM23:49Portland
31 Mar
PWM14:35Portland
12h 49m
1 stop
MAN08:24Manchester
£1,027
Find similar
Delta
27 Mar
MAN09:05Manchester
18h 44m
2 stops
PWM23:49Portland
31 Mar
PWM14:35Portland
12h 49m
1 stop
MAN08:24Manchester
£1,028
Find similar

American Airlines flights from United Kingdom to Portland, Maine

Our best American Airlines deals on United Kingdom to Portland, Maine flight tickets
American Airlines
10 Dec
LHR10:05London Heathrow
13h 10m
1 stop
PWM18:15Portland
17 Dec
PWM12:39Portland
14h 11m
1 stop
LHR07:50London Heathrow
£640
Find similar
American Airlines
10 Dec
LHR15:35London Heathrow
13h 02m
2 stops
PWM23:37Portland
17 Dec
PWM12:39Portland
14h 11m
1 stop
LHR07:50London Heathrow
£643
Find similar
American Airlines
27 Mar
NCL08:50Newcastle upon Tyne
17h 42m
2 stops
PWM22:32Portland
31 Mar
PWM07:50Portland
27h 25m
2 stops
NCL16:15Newcastle upon Tyne
£998
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 13 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 21/4

11:55-23:36

1 stop16h 41m

Portland

Mon 27/4

06:00-20:45

1 stop9h 45m

£513

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 22/4

11:55-23:36

1 stop16h 41m

Portland

Mon 27/4

06:00-20:45

1 stop9h 45m

£533

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 20/4

08:25-13:23

2 stops33h 58m

Portland

Fri 24/4

06:00-20:45

1 stop9h 45m

£541

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 21/4

11:55-23:36

1 stop16h 41m

Portland

Sun 26/4

06:00-20:45

1 stop9h 45m

£543

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 22/4

11:55-23:36

1 stop16h 41m

Portland

Sun 26/4

14:20-09:30

1 stop14h 10m

£564

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 20/4

08:25-13:23

2 stops33h 58m

Portland

Fri 24/4

06:00-06:30

2 stops19h 30m

£583

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 8/1

07:30-18:50

2 stops16h 20m

Portland

Thu 22/1

15:12-06:20

1 stop10h 08m

£599

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 8/1

18:00-18:50

1 stop29h 50m

Portland

Thu 22/1

08:40-08:25

1 stop18h 45m

£605

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 8/1

06:00-18:50

2 stops17h 50m

Portland

Thu 22/1

14:31-12:20

2 stops16h 49m

£711

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 8/1

13:30-22:29

1 stop13h 59m

Portland

Thu 22/1

05:30-10:30

1 stop24h 00m

£714

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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 £529, 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 £550.

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 £652. 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 £795.

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 £611. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £802 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

Direct flights

None
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 £392Free CancellationRating
7.1
578 reviews
Search Icelandair flights
JetBluePriceFrom £407Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
Virgin AtlanticPriceFrom £481Free CancellationRating
7.5
673 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £482Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
KLMPriceFrom £511Free CancellationRating
7.7
1,410 reviews
Search KLM flights
LufthansaPriceFrom £524Free CancellationRating
6.8
7,570 reviews
Search Lufthansa flights
United AirlinesPriceFrom £569Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
Aer LingusPriceFrom £632Free CancellationRating
7.2
1,370 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