Which airlines fly to Portland, Maine?

For flights from United Kingdom to Portland, Maine, most momondo users will book with popular airlines such as British Airways, Virgin Atlantic, Aer Lingus and KLM. Depending on what airport you fly from, you may have other airlines to choose from.

KLM Flights to Portland, Maine

KLM operates around 4 flights into Portland, Maine in any given week. The most common departure point for these flights was from New York John F Kennedy Intl, with the best round-trip KLM deal found being £513 (Bristol to Portland, Maine). Users have rated KLM 7.7/10 in over 1,408 reviews on momondo.

Virgin Atlantic Flights to Portland, Maine

Virgin Atlantic (7.5/10, 672 reviews) is also a popular choice for flights to Portland, Maine, with deals from as low as £483 from London Heathrow, round-trip. With 4 Virgin Atlantic flights to Portland, Maine on average each week, prices can vary significantly by origin and availability.

How long does it take to fly to Portland, Maine?

The average flight duration from United Kingdom to Portland, Maine depends on which airport you fly into and out of. Flying from London Heathrow to Boston Logan Intl is 7h 25m on average, while flying from Manchester to Boston Logan Intl is 10h 55m on average. Boston Logan Intl is the most popular airport in Portland, Maine.

£405 Cheap Flights to Portland in 2025/26

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Find the cheapest flights from the United Kingdom to Portland, Maine

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07:30 - 18:43LHR-PWM

16h 13m2 stops

15:20 - 08:25PWM-LHR

12h 05m1 stop

£561United Airlines

Find Deal

ons., 3 dec. - ons., 10 dec.

07:30 - 18:54LHR-PWM

16h 24m2 stops

15:20 - 10:05PWM-LHR

13h 45m2 stops

£567United Airlines

Find Deal

ons., 3 dec. - ons., 10 dec.

12:00 - 18:43LHR-PWM

11h 43m1 stop

10:35 - 21:20PWM-LHR

29h 45m1 stop

£571Austrian Airlines

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ons., 3 dec. - ons., 10 dec.

11:10 - 23:09LHR-PWM

16h 59m2 stops

06:00 - 06:30PWM-LHR

19h 30m2 stops

£577Air Canada

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ons., 3 dec. - ons., 10 dec.

13:25 - 13:56LHR-PWM

29h 31m2 stops

19:27 - 07:10PWM-LHR

30h 43m2 stops

£591Air Canada

Find Deal

tir., 13 jan. - søn., 18 jan.

10:10 - 00:20LHR-PWM

19h 10m1 stop

14:35 - 20:10PWM-LHR

24h 35m1 stop

£626Delta

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tir., 13 jan. - søn., 18 jan.

09:20 - 23:54EDI-PWM

19h 34m2 stops

09:00 - 09:45PWM-EDI

19h 45m1 stop

£718KLM

Find Deal

tor., 20 nov. - tor., 27 nov.

09:20 - 23:54EDI-PWM

19h 34m2 stops

09:00 - 08:40PWM-EDI

18h 40m2 stops

£719KLM

Find Deal

tor., 20 nov. - tor., 27 nov.

09:10 - 18:13LHR-PWM

13h 03m1 stop

11:17 - 05:55PWM-LHR

13h 38m1 stop

£882Austrian Airlines

Find Deal

lør., 28 mar. - tir., 31 mar.

13:40 - 23:49MAN-PWM

14h 09m2 stops

14:35 - 08:24PWM-MAN

12h 49m1 stop

£1,021Delta

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fre., 27 mar. - tir., 31 mar.

Fly from

Route

Depart

Return

Price

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

ons. 3/12

07:30-18:43

2 stops16h 13m

Portland

ons. 10/12

15:20-08:25

1 stop12h 05m

£561

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

ons. 3/12

07:30-18:54

2 stops16h 24m

Portland

ons. 10/12

15:20-10:05

2 stops13h 45m

£567

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

ons. 3/12

12:00-18:43

1 stop11h 43m

Portland

ons. 10/12

10:35-21:20

1 stop29h 45m

£571

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

ons. 3/12

11:10-23:09

2 stops16h 59m

Portland

ons. 10/12

06:00-06:30

2 stops19h 30m

£577

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

tir. 13/1

13:25-13:56

2 stops29h 31m

Portland

søn. 18/1

19:27-07:10

2 stops30h 43m

£591

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

tir. 13/1

10:10-00:20

1 stop19h 10m

Portland

søn. 18/1

14:35-20:10

1 stop24h 35m

£626

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

tor. 20/11

09:20-23:54

2 stops19h 34m

Portland

tor. 27/11

09:00-09:45

1 stop19h 45m

£718

EdinburghPortland

EDI - PWM

EDIPWM

Edinburgh Turnhouse

tor. 20/11

09:20-23:54

2 stops19h 34m

Portland

tor. 27/11

09:00-08:40

2 stops18h 40m

£719

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

lør. 28/3

09:10-18:13

1 stop13h 03m

Portland

tir. 31/3

11:17-05:55

1 stop13h 38m

£882

ManchesterPortland

MAN - PWM

MANPWM

Manchester

fre. 27/3

13:40-23:49

2 stops14h 09m

Portland

tir. 31/3

14:35-08:24

1 stop12h 49m

£1,021

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Portland, Maine flights insights and trends

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

Prices

Other information

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from United Kingdom is in September. Flight prices, which tend to average around £553, 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 £558.

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 £653. 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 £797.

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 £612. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £805 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.

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 AIRPORT	February	22% cheaper	Flying 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 AIRPORT	December	46% more expensive	It costs about £962 for flights to Portland, Maine from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO PORTLAND, MAINE FROM LONDON HEATHROW AIRPORT	June	366% more users visited	More 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	£405
Best Round-Trip Price	£561
Fastest flight time	11h 26m
Popular in	July

The best one-way flight price to Portland from United Kingdom in the last 72 hours is £405 (London Heathrow to Portland).

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The best round-trip flight price to Portland from United Kingdom in the last 72 hours is £561 (London Heathrow to Portland).

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The fastest flight to Portland from United Kingdom takes 11h 26m (London Heathrow to Portland).

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July has the highest demand for flights to Portland, with a 14% price increase on average.

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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 Manchester Airport, with an average price of £61/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 £75/person, which is 38% 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 8 as of November 2025.

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.

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

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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.