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

JetBlue, Air Canada, and United 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 35% 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.

£227 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.

12:44 - 12:20

PWM

EDI

19h 36m

2 stops

11:25 - 23:55

EDI

PWM

16h 30m

2 stops

£448American Airlines

Tue, 10 Mar - Tue, 17 Mar

15:05 - 07:55

PWM

EDI

11h 50m

1 stop

09:25 - 21:09

EDI

PWM

16h 44m

2 stops

£454United Airlines

Tue, 24 Feb - Tue, 3 Mar

14:30 - 08:45

PWM

EDI

14h 15m

1 stop

09:30 - 23:59

EDI

PWM

18h 29m

2 stops

£461KLM

Tue, 10 Mar - Tue, 17 Mar

14:30 - 09:20

PWM

LHR

14h 50m

1 stop

06:30 - 23:59

LHR

PWM

21h 29m

2 stops

£462Delta

Tue, 10 Mar - Tue, 17 Mar

12:51 - 11:40

PWM

LHR

18h 49m

2 stops

10:00 - 23:59

LHR

PWM

17h 59m

2 stops

£466Delta

Tue, 10 Mar - Tue, 17 Mar

19:09 - 07:10

PWM

LHR

32h 01m

2 stops

09:00 - 23:04

LHR

PWM

42h 04m

2 stops

£468Air Canada

Mon, 9 Mar - Sun, 15 Mar

12:51 - 08:45

PWM

LHR

15h 54m

1 stop

16:10 - 23:59

LHR

PWM

11h 49m

1 stop

£482KLM

Tue, 10 Mar - Tue, 17 Mar

17:40 - 14:20

PWM

EDI

15h 40m

2 stops

09:15 - 21:44

EDI

PWM

17h 29m

2 stops

£529Multiple Airlines

Sun, 5 Apr - Wed, 27 May

06:00 - 10:25

PWM

MAN

23h 25m

3 stops

06:05 - 23:29

MAN

PWM

22h 24m

3 stops

£609Air Canada

Thu, 30 Apr - Mon, 4 May

11:07 - 10:00

PWM

LGW

17h 53m

1 stop

14:00 - 09:12

LGW

PWM

24h 12m

1 stop

£660Multiple Airlines

Wed, 20 May - Sun, 24 May

Delta flights from Portland, Maine to United Kingdom

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

Delta

10 Mar

PWM14:30Portland

14h 50m

1 stop

LHR09:20London Heathrow

17 Mar

LHR06:30London Heathrow

21h 29m

2 stops

PWM23:59Portland

£462

Delta

10 Mar

PWM12:51Portland

18h 49m

2 stops

LHR11:40London Heathrow

17 Mar

LHR10:00London Heathrow

17h 59m

2 stops

PWM23:59Portland

£466

Delta

31 Mar

PWM12:51Portland

19h 14m

2 stops

LHR13:05London Heathrow

14 Apr

LHR08:40London Heathrow

21h 06m

2 stops

PWM00:46Portland

£477

Air Canada flights from Portland, Maine to United Kingdom

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

Air Canada

9 Mar

PWM19:09Portland

32h 01m

2 stops

LHR07:10London Heathrow

15 Mar

LHR09:00London Heathrow

42h 04m

2 stops

PWM23:04Portland

£468

Air Canada

31 Mar

PWM11:09Portland

17h 26m

3 stops

LHR09:35London Heathrow

14 Apr

LHR08:30London Heathrow

19h 58m

3 stops

PWM23:28Portland

£585

Air Canada

26 Mar

PWM06:00Portland

34h 35m

2 stops

LHR20:35London Heathrow

30 Mar

LHR09:30London Heathrow

28h 55m

2 stops

PWM09:25Portland

£598

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

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 10/3

12:44-12:20

2 stops19h 36m

Edinburgh Turnhouse

Tue 17/3

11:25-23:55

2 stops16h 30m

£448

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 24/2

15:05-07:55

1 stop11h 50m

Edinburgh Turnhouse

Tue 3/3

09:25-21:09

2 stops16h 44m

£454

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 10/3

14:30-08:45

1 stop14h 15m

Edinburgh Turnhouse

Tue 17/3

09:30-23:59

2 stops18h 29m

£461

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 10/3

14:30-09:20

1 stop14h 50m

London Heathrow

Tue 17/3

06:30-23:59

2 stops21h 29m

£462

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 10/3

12:51-11:40

2 stops18h 49m

London Heathrow

Tue 17/3

10:00-23:59

2 stops17h 59m

£466

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 9/3

19:09-07:10

2 stops32h 01m

London Heathrow

Sun 15/3

09:00-23:04

2 stops42h 04m

£468

PortlandLondon

PWM - LHR

PWMLHR

Portland

Tue 10/3

12:51-08:45

1 stop15h 54m

London Heathrow

Tue 17/3

16:10-23:59

1 stop11h 49m

£482

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Sun 5/4

17:40-14:20

2 stops15h 40m

Edinburgh Turnhouse

Wed 27/5

09:15-21:44

2 stops17h 29m

£529

PortlandManchester

PWM - MAN

PWMMAN

Portland

Thu 30/4

06:00-10:25

3 stops23h 25m

Manchester

Mon 4/5

06:05-23:29

3 stops22h 24m

£609

PortlandLondon

PWM - LGW

PWMLGW

Portland

Wed 20/5

11:07-10:00

1 stop17h 53m

London Gatwick

Sun 24/5

14:00-09:12

1 stop24h 12m

£660

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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 October. Flight prices, which tend to average around £439, 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 October, then departing from Portland, Maine during the month February is also very affordable. Most momondo users find prices during this month for around £493.

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	9h 45m
Direct flights	None

The fastest flight from Portland, Maine to United Kingdom takes 9h 45m

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

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.