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Cheap flights from the United Kingdom to Portland from £380

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 2/6. 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

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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 - 23:56
LHR
-
PWM
17h 01m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£569JetBlue
Tue, 2 Jun - Wed, 3 Jun
JetBlue Logo
11:55 - 23:56
LHR
-
PWM
17h 01m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£572JetBlue
Tue, 2 Jun - Wed, 3 Jun
JetBlue Logo
11:55 - 23:36
LHR
-
PWM
16h 41m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£575JetBlue
Fri, 1 May - Tue, 5 May
Austrian Airlines Logo
09:30 - 18:37
LHR
-
PWM
14h 07m
1 stop
Austrian Airlines Logo
11:08 - 05:55
PWM
-
LHR
13h 47m
1 stop
£630Austrian Airlines
Thu, 23 Apr - Thu, 30 Apr
United Airlines Logo
07:25 - 18:58
LHR
-
PWM
16h 33m
2 stops
United Airlines Logo
14:08 - 09:20
PWM
-
LHR
14h 12m
2 stops
£633United Airlines
Mon, 27 Apr - Mon, 4 May
United Airlines Logo
11:10 - 14:20
MAN
-
PWM
32h 10m
2 stops
United Airlines Logo
11:34 - 09:50
PWM
-
MAN
17h 16m
2 stops
£747United Airlines
Mon, 27 Apr - Mon, 4 May
Delta Logo
14:55 - 00:46
MAN
-
PWM
14h 51m
1 stop
Delta Logo
06:30 - 10:00
PWM
-
MAN
22h 30m
2 stops
£771Delta
Mon, 27 Apr - Mon, 4 May
Delta Logo
14:55 - 00:46
MAN
-
PWM
14h 51m
1 stop
Delta Logo
14:51 - 08:15
PWM
-
MAN
12h 24m
1 stop
£774Delta
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
14:25 - 23:57
MAN
-
PWM
14h 32m
2 stops
Multiple Airlines Logo
20:15 - 06:30
PWM
-
MAN
29h 15m
2 stops
£883Multiple Airlines
Fri, 3 Jul - Fri, 10 Jul
Multiple Airlines Logo
14:55 - 23:59
MAN
-
PWM
14h 04m
1 stop
Multiple Airlines Logo
20:15 - 06:30
PWM
-
MAN
29h 15m
2 stops
£938Multiple Airlines
Fri, 3 Jul - Fri, 10 Jul

Austrian Airlines flights from United Kingdom to Portland, Maine

Our best Austrian Airlines deals on United Kingdom to Portland, Maine flight tickets
Austrian Airlines
23 Apr
LHR09:30London Heathrow
14h 07m
1 stop
PWM18:37Portland
30 Apr
PWM11:08Portland
13h 47m
1 stop
LHR05:55London Heathrow
£630
Austrian Airlines
24 Apr
LHR12:00London Heathrow
11h 37m
1 stop
PWM18:37Portland
1 May
PWM11:08Portland
28h 32m
1 stop
LHR20:40London Heathrow
£684
Austrian Airlines
9 Apr
LHR07:45London Heathrow
15h 52m
1 stop
PWM18:37Portland
16 Apr
PWM11:09Portland
13h 46m
1 stop
LHR05:55London Heathrow
£773

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 Apr
LHR07:25London Heathrow
16h 33m
2 stops
PWM18:58Portland
4 May
PWM14:08Portland
14h 12m
2 stops
LHR09:20London Heathrow
£633
United Airlines
1 May
LHR13:50London Heathrow
14h 33m
2 stops
PWM23:23Portland
5 May
PWM15:39Portland
11h 41m
1 stop
LHR08:20London Heathrow
£639
United Airlines
1 May
LHR13:50London Heathrow
14h 33m
2 stops
PWM23:23Portland
5 May
PWM06:00Portland
19h 45m
1 stop
LHR06:45London Heathrow
£641

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 March 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

Tue 2/6

11:55-23:56

1 stop17h 01m

Portland

Wed 3/6

06:00-20:45

1 stop9h 45m

£569

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 2/6

11:55-23:56

1 stop17h 01m

Portland

Wed 3/6

06:00-20:45

1 stop9h 45m

£572
Fastest return journey

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 1/5

11:55-23:36

1 stop16h 41m

Portland

Tue 5/5

06:00-20:45

1 stop9h 45m

£575

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 23/4

09:30-18:37

1 stop14h 07m

Portland

Thu 30/4

11:08-05:55

1 stop13h 47m

£630

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 27/4

07:25-18:58

2 stops16h 33m

Portland

Mon 4/5

14:08-09:20

2 stops14h 12m

£633

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Mon 27/4

11:10-14:20

2 stops32h 10m

Portland

Mon 4/5

11:34-09:50

2 stops17h 16m

£747

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Mon 27/4

14:55-00:46

1 stop14h 51m

Portland

Mon 4/5

06:30-10:00

2 stops22h 30m

£771

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Mon 27/4

14:55-00:46

1 stop14h 51m

Portland

Mon 4/5

14:51-08:15

1 stop12h 24m

£774

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 3/7

14:25-23:57

2 stops14h 32m

Portland

Fri 10/7

20:15-06:30

2 stops29h 15m

£883

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 3/7

14:55-23:59

1 stop14h 04m

Portland

Fri 10/7

20:15-06:30

2 stops29h 15m

£938

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 £523, 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 £524.

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

You could potentially save up to 24% 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

15h 52m

Direct flights

None
The fastest flight from United Kingdom to Portland, Maine takes 15h 52m
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
Virgin AtlanticPriceFrom £477Free CancellationRating
7.5
680 reviews
Search Virgin Atlantic flights
IcelandairPriceFrom £495Free CancellationRating
7.1
620 reviews
Search Icelandair flights
KLMPriceFrom £505Free CancellationRating
7.8
1,471 reviews
Search KLM flights
United AirlinesPriceFrom £563Free CancellationRating
7.4
9,423 reviews
Search United Airlines flights
Aer LingusPriceFrom £625Free CancellationRating
7.2
1,477 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