What is the cheapest airline that flies from Portland to United Kingdom?

United Airlines, Air Canada, and American Airlines are the most popular carriers operating from Portland to United Kingdom

Which airlines fly to United Kingdom?

British Airways, Virgin Atlantic and Aer Lingus are the top three most popular airlines that fly to United Kingdom from Portland, Maine according to our data. British Airways is the first choice among our users, with 31% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 11 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Portland Airport to United Kingdom refresh daily.

How old do you have to be to fly from Portland Airport to United Kingdom?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom 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 United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£255 Cheap Flights from Portland to the United Kingdom in 2026

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

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

14:35 - 09:20

PWM

EDI

13h 45m

1 stop

14:05 - 23:59

EDI

PWM

14h 54m

1 stop

£538KLM

Tue, 8 Sep - Sat, 19 Sep

06:25 - 07:15

PWM

LHR

19h 50m

1 stop

06:15 - 00:43

LHR

PWM

23h 28m

2 stops

£538Delta

Fri, 8 May - Wed, 13 May

14:35 - 07:05

PWM

EDI

11h 30m

2 stops

14:05 - 23:59

EDI

PWM

14h 54m

1 stop

£541Multiple Airlines

Tue, 8 Sep - Sat, 19 Sep

14:35 - 07:05

PWM

EDI

11h 30m

2 stops

13:10 - 23:59

EDI

PWM

15h 49m

2 stops

£564Multiple Airlines

Tue, 8 Sep - Sat, 19 Sep

06:00 - 06:25

PWM

LHR

19h 25m

1 stop

06:15 - 22:23

LHR

PWM

21h 08m

2 stops

£577Virgin Atlantic

Wed, 14 Oct - Wed, 21 Oct

14:05 - 07:15

PWM

LHR

12h 10m

1 stop

09:20 - 23:09

LHR

PWM

18h 49m

1 stop

£595Virgin Atlantic

Thu, 7 May - Sat, 30 May

10:04 - 10:25

PWM

MAN

19h 21m

2 stops

09:00 - 22:01

MAN

PWM

42h 01m

2 stops

£696United Airlines

Wed, 12 Aug - Sun, 30 Aug

19:35 - 10:10

PWM

GLA

33h 35m

2 stops

14:00 - 23:31

GLA

PWM

14h 31m

1 stop

£780United Airlines

Mon, 14 Sep - Tue, 22 Sep

13:17 - 09:35

PWM

LGW

15h 18m

2 stops

12:20 - 13:45

LGW

PWM

30h 25m

2 stops

£848JetBlue

Tue, 18 Aug - Tue, 25 Aug

14:36 - 09:35

PWM

LGW

37h 59m

2 stops

12:20 - 23:58

LGW

PWM

16h 38m

2 stops

£865JetBlue

Fri, 22 May - Fri, 29 May

Virgin Atlantic flights from Portland, Maine to United Kingdom

Our best Virgin Atlantic deals on Portland, Maine to United Kingdom flight tickets

Virgin Atlantic

14 Oct

PWM06:00Portland

19h 25m

1 stop

LHR06:25London Heathrow

21 Oct

LHR06:15London Heathrow

21h 08m

2 stops

PWM22:23Portland

£577

Virgin Atlantic

7 May

PWM14:05Portland

12h 10m

1 stop

LHR07:15London Heathrow

30 May

LHR09:20London Heathrow

18h 49m

1 stop

PWM23:09Portland

£595

Virgin Atlantic

30 Sept

PWM13:35Portland

16h 45m

1 stop

LHR11:20London Heathrow

6 Oct

LHR06:15London Heathrow

21h 08m

2 stops

PWM22:23Portland

£635

KLM flights from Portland, Maine to United Kingdom

Our best KLM deals on Portland, Maine to United Kingdom flight tickets

KLM

2 May

PWM06:30Portland

19h 35m

1 stop

EDI07:05Edinburgh Turnhouse

11 May

EDI09:00Edinburgh Turnhouse

19h 09m

1 stop

PWM23:09Portland

£526

KLM

8 Sept

PWM14:35Portland

13h 45m

1 stop

EDI09:20Edinburgh Turnhouse

19 Sept

EDI14:05Edinburgh Turnhouse

14h 54m

1 stop

PWM23:59Portland

£538

KLM

8 May

PWM12:50Portland

13h 20m

1 stop

LHR07:10London Heathrow

13 May

LHR11:15London Heathrow

16h 57m

1 stop

PWM23:12Portland

£543

momondo Fare Finder

Use the filters below to find and compare flights from Portland, Maine to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 8/9

14:35-09:20

1 stop13h 45m

Edinburgh Turnhouse

Sat 19/9

14:05-23:59

1 stop14h 54m

£538

PortlandLondon

PWM - LHR

PWMLHR

Portland

Fri 8/5

06:25-07:15

1 stop19h 50m

London Heathrow

Wed 13/5

06:15-00:43

2 stops23h 28m

£538

Fastest return journey

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 8/9

14:35-07:05

2 stops11h 30m

Edinburgh Turnhouse

Sat 19/9

14:05-23:59

1 stop14h 54m

£541

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 8/9

14:35-07:05

2 stops11h 30m

Edinburgh Turnhouse

Sat 19/9

13:10-23:59

2 stops15h 49m

£564

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 14/10

06:00-06:25

1 stop19h 25m

London Heathrow

Wed 21/10

06:15-22:23

2 stops21h 08m

£577

PortlandLondon

PWM - LHR

PWMLHR

Portland

Thu 7/5

14:05-07:15

1 stop12h 10m

London Heathrow

Sat 30/5

09:20-23:09

1 stop18h 49m

£595

PortlandManchester

PWM - MAN

PWMMAN

Portland

Wed 12/8

10:04-10:25

2 stops19h 21m

Manchester

Sun 30/8

09:00-22:01

2 stops42h 01m

£696

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Mon 14/9

19:35-10:10

2 stops33h 35m

Glasgow Intl

Tue 22/9

14:00-23:31

1 stop14h 31m

£780

PortlandLondon

PWM - LGW

PWMLGW

Portland

Tue 18/8

13:17-09:35

2 stops15h 18m

London Gatwick

Tue 25/8

12:20-13:45

2 stops30h 25m

£848

PortlandLondon

PWM - LGW

PWMLGW

Portland

Fri 22/5

14:36-09:35

2 stops37h 59m

London Gatwick

Fri 29/5

12:20-23:58

2 stops16h 38m

£865

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland, Maine to United Kingdom

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

Prices

Airlines

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Portland, Maine is in January. Flight prices, which tend to average around £0, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of January, then departing from Portland, Maine during the month October is also very affordable. Most momondo users find prices during this month for around £442.

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

You could potentially save up to 24% on your flight if you consider stops on a Portland, Maine to United Kingdom flight.

Cheap Portland, Maine to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to United Kingdom

Fastest flight time	11h 14m
Direct flights	None

The fastest flight from Portland, Maine to United Kingdom takes 11h 14m

There are no direct flights from Portland, Maine to United Kingdom. There are no popular flight routes from Portland, Maine to United Kingdom.

Search flight deals

Frequently asked questions about flying from Portland, Maine to the United Kingdom

When did momondo last update prices for flights from Portland Airport to United Kingdom?
Prices for flights from Portland Airport to United Kingdom refresh daily.
How old do you have to be to fly from Portland Airport to United Kingdom?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom 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 United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to United Kingdom . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to United Kingdom from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to United Kingdom?

Once you have performed a search for Portland to United Kingdom flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Portland and alert you when they change.