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Cheap flights from the United Kingdom to Portland from £370

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 28/8. 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
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
08:15 - 23:58
LHR
-
PWM
20h 43m
1 stop
JetBlue Logo
14:30 - 09:30
PWM
-
LHR
14h 00m
1 stop
£520JetBlue
Sun, 7 Jun - Sat, 13 Jun
JetBlue Logo
08:15 - 23:58
LHR
-
PWM
20h 43m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£540JetBlue
Mon, 8 Jun - Tue, 22 Sep
JetBlue Logo
08:15 - 23:52
LHR
-
PWM
20h 37m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£542JetBlue
Wed, 16 Sep - Mon, 21 Sep
United Airlines Logo
09:30 - 23:59
MAN
-
PWM
19h 29m
2 stops
United Airlines Logo
14:45 - 17:00
PWM
-
MAN
21h 15m
2 stops
£807United Airlines
Thu, 5 Nov - Mon, 9 Nov
United Airlines Logo
09:30 - 23:59
MAN
-
PWM
19h 29m
2 stops
United Airlines Logo
14:45 - 17:00
PWM
-
MAN
21h 15m
2 stops
£810United Airlines
Thu, 5 Nov - Mon, 9 Nov
Multiple Airlines Logo
12:10 - 13:45
EDI
-
PWM
30h 35m
1 stop
Multiple Airlines Logo
18:53 - 07:20
PWM
-
EDI
55h 27m
2 stops
£825Multiple Airlines
Fri, 21 Aug - Fri, 28 Aug
Delta Logo
14:55 - 11:55
MAN
-
PWM
26h 00m
2 stops
Delta Logo
06:25 - 10:00
PWM
-
MAN
22h 35m
2 stops
£873Delta
Mon, 8 Jun - Mon, 15 Jun
Delta Logo
14:55 - 14:19
MAN
-
PWM
28h 24m
1 stop
Delta Logo
14:59 - 08:15
PWM
-
MAN
12h 16m
1 stop
£876Delta
Mon, 8 Jun - Mon, 15 Jun
British Airways Logo
09:35 - 00:42
NCL
-
PWM
20h 07m
2 stops
British Airways Logo
19:28 - 16:40
PWM
-
NCL
16h 12m
2 stops
£877British Airways
Mon, 22 Jun - Mon, 29 Jun
Multiple Airlines Logo
10:50 - 00:42
MAN
-
PWM
18h 52m
2 stops
Multiple Airlines Logo
14:56 - 11:30
PWM
-
MAN
15h 34m
2 stops
£902Multiple Airlines
Thu, 18 Jun - Thu, 2 Jul

JetBlue flights from United Kingdom to Portland, Maine

Our best JetBlue deals on United Kingdom to Portland, Maine flight tickets
JetBlue
7 Jun
LHR08:15London Heathrow
20h 43m
1 stop
PWM23:58Portland
13 Jun
PWM14:30Portland
14h 00m
1 stop
LHR09:30London Heathrow
£520
JetBlue
8 Jun
LHR08:15London Heathrow
20h 43m
1 stop
PWM23:58Portland
22 Sept
PWM06:00Portland
9h 45m
1 stop
LHR20:45London Heathrow
£540
JetBlue
16 Sept
LHR08:15London Heathrow
20h 37m
1 stop
PWM23:52Portland
21 Sept
PWM06:00Portland
9h 45m
1 stop
LHR20:45London Heathrow
£542

Scandinavian Airlines flights from United Kingdom to Portland, Maine

Our best Scandinavian Airlines deals on United Kingdom to Portland, Maine flight tickets
Scandinavian Airlines
8 Jun
LHR07:05London Heathrow
22h 47m
2 stops
PWM00:52Portland
15 Jun
PWM14:59Portland
22h 31m
2 stops
LHR18:30London Heathrow
£681
Scandinavian Airlines
8 Jun
LHR07:05London Heathrow
22h 47m
2 stops
PWM00:52Portland
15 Jun
PWM14:59Portland
18h 36m
3 stops
LHR14:35London Heathrow
£715
Scandinavian Airlines
4 Jun
LHR18:40London Heathrow
35h 03m
2 stops
PWM00:43Portland
11 Jun
PWM06:25Portland
22h 10m
2 stops
LHR09:35London Heathrow
£787

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 11 May 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

Sun 7/6

08:15-23:58

1 stop20h 43m

Portland

Sat 13/6

14:30-09:30

1 stop14h 00m

£520

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 8/6

08:15-23:58

1 stop20h 43m

Portland

Tue 22/9

06:00-20:45

1 stop9h 45m

£540
Fastest return journey

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 16/9

08:15-23:52

1 stop20h 37m

Portland

Mon 21/9

06:00-20:45

1 stop9h 45m

£542

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 5/11

09:30-23:59

2 stops19h 29m

Portland

Mon 9/11

14:45-17:00

2 stops21h 15m

£807

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 5/11

09:30-23:59

2 stops19h 29m

Portland

Mon 9/11

14:45-17:00

2 stops21h 15m

£810

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Fri 21/8

12:10-13:45

1 stop30h 35m

Portland

Fri 28/8

18:53-07:20

2 stops55h 27m

£825

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Mon 8/6

14:55-11:55

2 stops26h 00m

Portland

Mon 15/6

06:25-10:00

2 stops22h 35m

£873

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Mon 8/6

14:55-14:19

1 stop28h 24m

Portland

Mon 15/6

14:59-08:15

1 stop12h 16m

£876

Newcastle upon TynePortland

NCL - PWM

NCLPWM

Newcastle upon Tyne

Mon 22/6

09:35-00:42

2 stops20h 07m

Portland

Mon 29/6

19:28-16:40

2 stops16h 12m

£877

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 18/6

10:50-00:42

2 stops18h 52m

Portland

Thu 2/7

14:56-11:30

2 stops15h 34m

£902

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 £119, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Portland, Maine, with average flight prices from United Kingdom averaging around £142.

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

17h 19m

Direct flights

None
The fastest flight from United Kingdom to Portland, Maine takes 17h 19m
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 £535Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £557Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
KLMPriceFrom £565Free CancellationRating
7.8
1,513 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