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Flights to Portland

£419 Cheap flights to Portland, Maine

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Portland, Maine departing on 24/5. 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, Maine

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
11:55 - 23:36
LHR
-
PWM
16h 41m
1 stop
JetBlue Logo
06:00 - 20:45
PWM
-
LHR
9h 45m
1 stop
£544JetBlue
Sun, 10 May - Sun, 17 May
United Airlines Logo
07:30 - 18:25
LHR
-
PWM
14h 55m
2 stops
United Airlines Logo
11:30 - 06:40
PWM
-
LHR
15h 10m
2 stops
£565United Airlines
Mon, 16 Mar - Mon, 23 Mar
United Airlines Logo
09:10 - 18:25
LHR
-
PWM
13h 15m
1 stop
United Airlines Logo
16:23 - 11:15
PWM
-
LHR
14h 52m
1 stop
£588United Airlines
Mon, 16 Mar - Mon, 23 Mar
Multiple Airlines Logo
08:00 - 18:25
LHR
-
PWM
14h 25m
1 stop
Multiple Airlines Logo
11:30 - 20:35
PWM
-
LHR
29h 05m
1 stop
£612Multiple Airlines
Sun, 15 Mar - Sun, 22 Mar
United Airlines Logo
06:50 - 18:25
LHR
-
PWM
15h 35m
2 stops
United Airlines Logo
14:32 - 10:50
PWM
-
LHR
16h 18m
1 stop
£621United Airlines
Sat, 14 Mar - Sat, 21 Mar
Scandinavian Airlines Logo
06:40 - 23:59
LHR
-
PWM
21h 19m
2 stops
Scandinavian Airlines Logo
14:30 - 14:35
PWM
-
LHR
20h 05m
3 stops
£630Scandinavian Airlines
Mon, 16 Mar - Mon, 23 Mar
Scandinavian Airlines Logo
06:40 - 23:59
LHR
-
PWM
21h 19m
3 stops
Scandinavian Airlines Logo
14:30 - 14:35
PWM
-
LHR
20h 05m
3 stops
£636Scandinavian Airlines
Mon, 16 Mar - Mon, 23 Mar
Virgin Atlantic Logo
10:45 - 23:22
LHR
-
PWM
16h 37m
1 stop
Virgin Atlantic Logo
05:23 - 07:00
PWM
-
LHR
45h 37m
2 stops
£636Virgin Atlantic
Sun, 15 Mar - Sun, 22 Mar
KLM Logo
17:00 - 00:18
EDI
-
PWM
36h 18m
2 stops
KLM Logo
14:35 - 09:20
PWM
-
EDI
37h 45m
2 stops
£713KLM
Thu, 26 Feb - Thu, 5 Mar
Virgin Atlantic Logo
19:40 - 23:06
MAN
-
PWM
32h 26m
2 stops
Virgin Atlantic Logo
05:23 - 10:30
PWM
-
MAN
25h 07m
1 stop
£740Virgin Atlantic
Sun, 1 Mar - Fri, 20 Mar

momondo Fare Finder

 
Locate flights to Portland that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 30 January 2026.
Use the filters below to find and compare flights to Portland, Maine that are best for you.

Fly from

Route

Depart

Return

Price

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 10/5

11:55-23:36

1 stop16h 41m

Portland

Sun 17/5

06:00-20:45

1 stop9h 45m

£544

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 16/3

07:30-18:25

2 stops14h 55m

Portland

Mon 23/3

11:30-06:40

2 stops15h 10m

£565

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 16/3

09:10-18:25

1 stop13h 15m

Portland

Mon 23/3

16:23-11:15

1 stop14h 52m

£588

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 15/3

08:00-18:25

1 stop14h 25m

Portland

Sun 22/3

11:30-20:35

1 stop29h 05m

£612

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 14/3

06:50-18:25

2 stops15h 35m

Portland

Sat 21/3

14:32-10:50

1 stop16h 18m

£621

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 16/3

06:40-23:59

2 stops21h 19m

Portland

Mon 23/3

14:30-14:35

3 stops20h 05m

£630

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 16/3

06:40-23:59

3 stops21h 19m

Portland

Mon 23/3

14:30-14:35

3 stops20h 05m

£636

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 15/3

10:45-23:22

1 stop16h 37m

Portland

Sun 22/3

05:23-07:00

2 stops45h 37m

£636

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

Thu 26/2

17:00-00:18

2 stops36h 18m

Portland

Thu 5/3

14:35-09:20

2 stops37h 45m

£713

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Sun 1/3

19:40-23:06

2 stops32h 26m

Portland

Fri 20/3

05:23-10:30

1 stop25h 07m

£740

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Portland, Maine flights insights and trends

Explore insights for your Portland, Maine flight to craft the best travel plan

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 £502, 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 £510.

Cheapest flights to Portland

Find the cheapest flights to Portland from your nearest city or airport
Find flights from London Heathrow Airport to Portland, Maine
CHEAPEST MONTH TO FLY TO PORTLAND, MAINE FROM LONDON HEATHROW AIRPORTFebruary20% cheaperFlying from London Heathrow Airport to Portland, Maine costs on average just £513 in February
MOST EXPENSIVE MONTH TO FLY TO PORTLAND, MAINE FROM LONDON HEATHROW AIRPORTDecember76% more expensiveIt costs about £1,131 for flights to Portland, Maine from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO PORTLAND, MAINE FROM LONDON HEATHROW AIRPORTJune400% more users visitedMore momondo users searched in flights to Portland, Maine from London Heathrow Airport in June than any other month

Cheap Portland, Maine flight deals and tips

Summary info about Portland, Maine flight prices, duration and airlines

Best One-Way Price

£419

Best Round-Trip Price

£544

Fastest flight time

32h 07m

Popular in

January
The best one-way flight price to Portland from United Kingdom in the last 72 hours is £419 (Edinburgh Turnhouse to Portland).
Search Deals
The best round-trip flight price to Portland from United Kingdom in the last 72 hours is £544 (London Heathrow to Portland).
Search Deals
The fastest flight to Portland from United Kingdom takes 32h 07m (Edinburgh Turnhouse to Portland).
Search Deals
January has the highest demand for flights to Portland, with a 3% price increase on average.
Search Deals

Frequently asked questions about flying to Portland, Maine

Is there an alternative airport near Portland, Maine?

Those flying to Portland, Maine could potentially find better pricing at Portland Airport (3 mi from Portland, Maine city centre), Portsmouth Pease Intl Airport (49 mi from Portland, Maine city centre), Augusta Airport (51 mi from Portland, Maine city centre), Rockland Knox County Regional Airport (64 mi from Portland, Maine city centre) or Manchester Airport (78 mi from Portland, Maine city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Portland, Maine?

The cheapest airport near Portland, Maine is typically Rockland Knox County Regional Airport, with an average price of £101/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Portland, Maine?

In the past two weeks, users have booked deals to Portland, Maine for £136/person, which is 4% cheaper than the average flight to Portland, Maine. To find the cheapest price to Portland, Maine from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Portland Airport?

Prices for flights to Portland Airport refresh daily.

How many operators does momondo search for flights to Portland Airport?

The number of operators available for flights to Portland Airport is 7 as of January 2026.

How old do you have to be to fly to Portland Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Portland, Maine?

Book flights to Portland, Maine if you plan to visit one of these locations
Bath

Why use momondo?

Why should I use momondo to find a flight deal to Portland?

Finding the right flight to Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portland quick and easy, saving you time and money.

Can I find flights to Portland with flexible booking policies on momondo?

All flight searches to Portland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Portland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to Portland.

I’m not ready to book a flight to Portland right now. Can momondo alert me if prices change?

Price alerts on flights to Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portland trip

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Find better results for your trip to Portland, Maine

Popular Flights to Portland, Maine

Popular routes according to searches in the past day on momondo
London to Portland Flightsfrom £668
Manchester to Portland Flightsfrom £888
Edinburgh Turnhouse to Portland Flightsfrom £848
Newcastle upon Tyne to Portland Flightsfrom £901