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Cheap flights from Portland to the United Kingdom from £205

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to the United Kingdom departing on 15/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:45 - 09:55PDX-GLA
11h 10m1 stop
Icelandair Logo
12:35 - 18:00GLA-PDX
12h 25m1 stop
£390Icelandair
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Mon, 9 Mar - Wed, 18 Mar
Icelandair Logo
15:45 - 10:20PDX-EDI
11h 35m1 stop
Icelandair Logo
12:20 - 18:00EDI-PDX
12h 40m1 stop
£392Icelandair
Find Deal
Mon, 9 Mar - Fri, 20 Mar
Finnair Logo
07:38 - 15:10PDX-EDI
23h 32m2 stops
Finnair Logo
06:05 - 18:51EDI-PDX
20h 46m2 stops
£422Finnair
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Wed, 28 Jan - Fri, 6 Feb
British Airways Logo
17:45 - 14:25PDX-EDI
12h 40m1 stop
British Airways Logo
09:55 - 15:55EDI-PDX
14h 00m1 stop
£424British Airways
Find Deal
Sun, 22 Feb - Fri, 6 Mar
Virgin Atlantic Logo
06:00 - 07:05PDX-LHR
17h 05m1 stop
Virgin Atlantic Logo
11:05 - 17:35LHR-PDX
14h 30m1 stop
£431Virgin Atlantic
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Wed, 14 Jan - Thu, 29 Jan
United Airlines Logo
23:59 - 07:55PDX-EDI
23h 56m2 stops
United Airlines Logo
09:25 - 21:15EDI-PDX
19h 50m2 stops
£433United Airlines
Find Deal
Tue, 24 Feb - Tue, 3 Mar
British Airways Logo
11:46 - 12:10PDX-EDI
16h 24m2 stops
British Airways Logo
06:25 - 15:55EDI-PDX
17h 30m1 stop
£436British Airways
Find Deal
Mon, 23 Feb - Wed, 4 Mar
United Airlines Logo
19:00 - 11:50PDX-LHR
32h 50m1 stop
United Airlines Logo
14:30 - 09:15LHR-PDX
26h 45m1 stop
£443United Airlines
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Sat, 29 Nov - Thu, 11 Dec
Finnair Logo
17:45 - 15:15PDX-EDI
13h 30m1 stop
Finnair Logo
08:15 - 22:35EDI-PDX
22h 20m2 stops
£460Finnair
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Mon, 12 Jan - Sun, 18 Jan
Virgin Atlantic Logo
13:25 - 22:00PDX-MAN
24h 35m1 stop
Virgin Atlantic Logo
13:30 - 22:15MAN-PDX
16h 45m1 stop
£469Virgin Atlantic
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Wed, 31 Dec - Sat, 10 Jan

American Airlines flights from Portland to United Kingdom

Our best American Airlines deals on Portland to United Kingdom flight tickets
American Airlines
3 Dec
PDX17:45Portland
9h 35m
LHR11:20London Heathrow
10 Dec
LHR09:55London Heathrow
18h 22m
1 stop
PDX20:17Portland
£450
Find similar
American Airlines
14 Feb
PDX14:05Portland
16h 50m
2 stops
GLA14:55Glasgow Intl
22 Feb
GLA06:35Glasgow Intl
17h 20m
1 stop
PDX15:55Portland
£460
Find similar
American Airlines
28 Nov
PDX17:45Portland
9h 35m
LHR11:20London Heathrow
9 Dec
LHR09:55London Heathrow
18h 22m
1 stop
PDX20:17Portland
£488
Find similar

Scandinavian Airlines flights from Portland to United Kingdom

Our best Scandinavian Airlines deals on Portland to United Kingdom flight tickets
Scandinavian Airlines
10 Feb
PDX13:02Portland
24h 38m
2 stops
LHR21:40London Heathrow
25 Feb
LHR07:05London Heathrow
23h 19m
3 stops
PDX22:24Portland
£452
Find similar
Scandinavian Airlines
2 Mar
PDX10:24Portland
24h 06m
2 stops
LHR18:30London Heathrow
18 Mar
LHR07:05London Heathrow
22h 17m
3 stops
PDX22:22Portland
£458
Find similar
Scandinavian Airlines
2 Mar
PDX10:24Portland
27h 11m
3 stops
LHR21:35London Heathrow
6 Mar
LHR07:05London Heathrow
23h 19m
3 stops
PDX22:24Portland
£461
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Portland to United Kingdom 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 19 November 2025.
Use the filters below to find and compare flights from Portland to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 9/3

15:45-09:55

1 stop11h 10m

Glasgow Intl

Wed 18/3

12:35-18:00

1 stop12h 25m

£390

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Mon 9/3

15:45-10:20

1 stop11h 35m

Edinburgh Turnhouse

Fri 20/3

12:20-18:00

1 stop12h 40m

£392

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Wed 28/1

07:38-15:10

2 stops23h 32m

Edinburgh Turnhouse

Fri 6/2

06:05-18:51

2 stops20h 46m

£422

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Sun 22/2

17:45-14:25

1 stop12h 40m

Edinburgh Turnhouse

Fri 6/3

09:55-15:55

1 stop14h 00m

£424

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 14/1

06:00-07:05

1 stop17h 05m

London Heathrow

Thu 29/1

11:05-17:35

1 stop14h 30m

£431

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Tue 24/2

23:59-07:55

2 stops23h 56m

Edinburgh Turnhouse

Tue 3/3

09:25-21:15

2 stops19h 50m

£433

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Mon 23/2

11:46-12:10

2 stops16h 24m

Edinburgh Turnhouse

Wed 4/3

06:25-15:55

1 stop17h 30m

£436

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sat 29/11

19:00-11:50

1 stop32h 50m

London Heathrow

Thu 11/12

14:30-09:15

1 stop26h 45m

£442

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Mon 12/1

17:45-15:15

1 stop13h 30m

Edinburgh Turnhouse

Sun 18/1

08:15-22:35

2 stops22h 20m

£460

PortlandManchester

PDX - MAN

PDXMAN

Portland

Wed 31/12

13:25-22:00

1 stop24h 35m

Manchester

Sat 10/1

13:30-22:15

1 stop16h 45m

£469

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Portland 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

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Portland is in October. Flight prices, which tend to average around £490, 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 during the month November is also very affordable. Most momondo users find prices during this month for around £502.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Portland to United Kingdom is on a Friday. Travellers who choose to depart for United Kingdom on a Friday will often find tickets for as low as £468. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Portland to United Kingdom for around £565.

What is the cheapest time of day to depart on your flight to United Kingdom?

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £524. Try not to purchase tickets at midday because they tend to be around £704. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to United Kingdom flight route?

Fly from Portland to London Heathrow for the best Portland - United Kingdom flight prices

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £635 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Portland for as low as £582 on momondo.

What cabin class options are available on Portland to United Kingdom flights?

There are 3 cabin classes available to choose from on Portland to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 16% on your flight if you consider stops on a Portland to United Kingdom flight.

Cheap Portland to United Kingdom flight deals and tips

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

Best price found

£3,237

Fastest flight time

9h 30m

Direct flights

Every day

Airports in United Kingdom

1 airport
The best one-way flight to United Kingdom from Portland in the past 72 hours is £3,237. The best return flight deal from Portland to United Kingdom found on momondo in the last 72 hours is £1,389.
The fastest flight from Portland to United Kingdom takes 9h 30m
Direct flights go from Portland to United Kingdom every day.
There is 1 airport near United Kingdom: London Heathrow (LHR)
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 are updated daily.

  • How many operators does momondo search for flights from Portland Airport to United Kingdom?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to United Kingdom 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 United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland to United Kingdom?

Best airlines flying from Portland to United Kingdom

Compare and see reviews for airlines that fly from Portland to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £391Free CancellationRating
6.7
7,530 reviews
Search British Airways flights
IcelandairPriceFrom £448Free CancellationRating
7.0
580 reviews
Search Icelandair flights
IberiaPriceFrom £463Free CancellationRating
7.0
3,025 reviews
Search Iberia flights
Virgin AtlanticPriceFrom £501Free CancellationRating
7.5
673 reviews
Search Virgin Atlantic flights

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?

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

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

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 from Portland to United Kingdom.

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

Of course. momondo tracks the price of Portland to United Kingdom flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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