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Cheap flights from the United Kingdom to Portland from £503

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 17/5. 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
11:10 - 23:20
LHR
-
PWM
17h 10m
2 stops
United Airlines Logo
15:44 - 08:25
PWM
-
LHR
12h 41m
1 stop
£565United Airlines
Mon, 2 Mar - Mon, 9 Mar
United Airlines Logo
10:25 - 21:09
LHR
-
PWM
15h 44m
1 stop
United Airlines Logo
06:00 - 21:20
PWM
-
LHR
11h 20m
1 stop
£589United Airlines
Mon, 2 Mar - Mon, 9 Mar
United Airlines Logo
08:30 - 21:11
LHR
-
PWM
16h 41m
2 stops
United Airlines Logo
06:00 - 20:35
PWM
-
LHR
10h 35m
1 stop
£596United Airlines
Thu, 19 Mar - Thu, 26 Mar
Austrian Airlines Logo
09:10 - 18:25
LHR
-
PWM
13h 15m
1 stop
Austrian Airlines Logo
11:30 - 08:25
PWM
-
LHR
16h 55m
1 stop
£606Austrian Airlines
Thu, 19 Mar - Thu, 26 Mar
Virgin Atlantic Logo
06:30 - 23:22
LHR
-
PWM
20h 52m
2 stops
Virgin Atlantic Logo
05:23 - 11:55
PWM
-
LHR
26h 32m
2 stops
£644Virgin Atlantic
Thu, 19 Mar - Thu, 26 Mar
Virgin Atlantic Logo
13:30 - 23:22
MAN
-
PWM
13h 52m
1 stop
Virgin Atlantic Logo
05:23 - 07:55
PWM
-
MAN
22h 32m
2 stops
£719Virgin Atlantic
Thu, 19 Mar - Thu, 26 Mar
Delta Logo
13:30 - 12:09
MAN
-
PWM
26h 39m
2 stops
Delta Logo
14:30 - 16:35
PWM
-
MAN
22h 05m
2 stops
£734Delta
Thu, 19 Mar - Thu, 26 Mar
Delta Logo
13:25 - 23:22
MAN
-
PWM
13h 57m
1 stop
Delta Logo
06:25 - 10:10
PWM
-
MAN
23h 45m
2 stops
£820Delta
Fri, 20 Mar - Fri, 27 Mar
Multiple Airlines Logo
11:10 - 23:20
LHR
-
PWM
17h 10m
2 stops
Multiple Airlines Logo
11:30 - 08:30
PWM
-
LHR
17h 00m
3 stops
£1,050Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
06:00 - 22:51
LHR
-
PWM
20h 51m
2 stops
Multiple Airlines Logo
19:07 - 21:35
PWM
-
LHR
22h 28m
3 stops
£1,073Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar

United Airlines flights from United Kingdom to Portland, Maine

Our best United Airlines deals on United Kingdom to Portland, Maine flight tickets
United Airlines
2 Mar
LHR11:10London Heathrow
17h 10m
2 stops
PWM23:20Portland
9 Mar
PWM15:44Portland
12h 41m
1 stop
LHR08:25London Heathrow
£565
United Airlines
2 Mar
LHR10:25London Heathrow
15h 44m
1 stop
PWM21:09Portland
9 Mar
PWM06:00Portland
11h 20m
1 stop
LHR21:20London Heathrow
£589
United Airlines
19 Mar
LHR08:30London Heathrow
16h 41m
2 stops
PWM21:11Portland
26 Mar
PWM06:00Portland
10h 35m
1 stop
LHR20:35London Heathrow
£596

Virgin Atlantic flights from United Kingdom to Portland, Maine

Our best Virgin Atlantic deals on United Kingdom to Portland, Maine flight tickets
Virgin Atlantic
19 Mar
LHR06:30London Heathrow
20h 52m
2 stops
PWM23:22Portland
26 Mar
PWM05:23Portland
26h 32m
2 stops
LHR11:55London Heathrow
£644
Virgin Atlantic
19 Mar
MAN13:30Manchester
13h 52m
1 stop
PWM23:22Portland
26 Mar
PWM05:23Portland
22h 32m
2 stops
MAN07:55Manchester
£719
Virgin Atlantic
19 Mar
MAN13:30Manchester
13h 52m
1 stop
PWM23:22Portland
26 Mar
PWM05:23Portland
25h 07m
1 stop
MAN10:30Manchester
£780

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 4 February 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

Mon 2/3

11:10-23:20

2 stops17h 10m

Portland

Mon 9/3

15:44-08:25

1 stop12h 41m

£565

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 2/3

10:25-21:09

1 stop15h 44m

Portland

Mon 9/3

06:00-21:20

1 stop11h 20m

£589

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 19/3

08:30-21:11

2 stops16h 41m

Portland

Thu 26/3

06:00-20:35

1 stop10h 35m

£596

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 19/3

09:10-18:25

1 stop13h 15m

Portland

Thu 26/3

11:30-08:25

1 stop16h 55m

£606

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 19/3

06:30-23:22

2 stops20h 52m

Portland

Thu 26/3

05:23-11:55

2 stops26h 32m

£644

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 19/3

13:30-23:22

1 stop13h 52m

Portland

Thu 26/3

05:23-07:55

2 stops22h 32m

£719

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 19/3

13:30-12:09

2 stops26h 39m

Portland

Thu 26/3

14:30-16:35

2 stops22h 05m

£734

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 20/3

13:25-23:22

1 stop13h 57m

Portland

Fri 27/3

06:25-10:10

2 stops23h 45m

£820

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 2/3

11:10-23:20

2 stops17h 10m

Portland

Mon 9/3

11:30-08:30

3 stops17h 00m

£1,050

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 19/3

06:00-22:51

2 stops20h 51m

Portland

Thu 26/3

19:07-21:35

3 stops22h 28m

£1,073

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 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 £507, 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 £514.

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

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 £141Free CancellationRating
7.2
2,893 reviews
Search JetBlue flights
Virgin AtlanticPriceFrom £463Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
IcelandairPriceFrom £480Free CancellationRating
7.1
606 reviews
Search Icelandair flights
KLMPriceFrom £490Free CancellationRating
7.7
1,448 reviews
Search KLM flights
FinnairPriceFrom £530Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
United AirlinesPriceFrom £545Free CancellationRating
7.4
9,235 reviews
Search United Airlines 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