How long is the flight from Portland to United Kingdom?

Departing from Portland to United Kingdom will take you 12h 25m. The distance between Portland and United Kingdom is about 4896 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in United Kingdom ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Portland to United Kingdom?

The most popular flight routes from Portland to United Kingdom are Portland - London Heathrow, Portland - London Gatwick and Portland - London Stansted.

What are the cheapest flights from Portland to United Kingdom?

Looking for the cheapest flight from Portland to United Kingdom? While on average our users pay £1,687, our data indicates the cheapest price to be £990. The most popular route (Portland - London Heathrow), is priced around £498.

What are the most reliable airlines from Portland to United Kingdom?

No one likes to see their flight delayed. When booking a flight from Portland to United Kingdom consider choosing American Airlines (79%), Alaska Airlines (79%) or Aer Lingus (79%) as they are the most reliable in getting you off to your destination on time.

What airport do you fly from for flights from Portland to United Kingdom?

Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to United Kingdom.

Can I find deals for flights from Portland to United Kingdom that include hotel bookings?

Yes. In addition to deals on Portland to United Kingdom flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Portland to United Kingdom?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to United Kingdom.

Can I find deals for business class flights from Portland to United Kingdom?

Yes. Cheapflights offers flight deals from Portland to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£194+ Cheap Flights from Portland to the United Kingdom

Cheap flight deals from Portland to United Kingdom

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Portland to United Kingdom
Explore the most affordable flight options available from Portland to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Mon 16/1114:45 -

1 stop14h 50m

Thu 19/1118:20 -

1 stop30h 40m

Deal found 2/11£497

Tue 1/1207:00 -

3 stops30h 35m

Tue 8/1217:30 -

3 stops29h 11m

Deal found 4/11£557

Mon 30/1114:45 -

1 stop12h 05m

Fri 4/1212:15 -

1 stop12h 45m

Deal found 3/11£558

Mon 30/1114:45 -

1 stop20h 45m

Thu 10/1220:35 -

1 stop28h 25m

Deal found 1/11£560

Tue 10/1114:45 -

1 stop12h 05m

Fri 20/1112:15 -

1 stop12h 45m

Deal found 1/11£560

Tue 1/1214:45 -

1 stop20h 45m

Tue 15/1220:35 -

1 stop28h 25m

Deal found 3/11£562

Mon 30/1114:45 -

1 stop12h 05m

Mon 7/1212:15 -

1 stop12h 45m

Deal found 5/11£564

Tue 1/1214:45 -

1 stop12h 05m

Sun 13/1220:35 -

1 stop28h 25m

Deal found 4/11£565

Tue 10/1114:45 -

1 stop20h 45m

Thu 19/1120:35 -

1 stop28h 25m

Deal found 1/11£566

Mon 16/1114:45 -

1 stop12h 05m

Mon 23/1112:15 -

1 stop12h 45m

Deal found 2/11£566

Tue 10/1114:45 -

1 stop12h 05m

Sun 15/1112:15 -

1 stop12h 45m

Deal found 2/11£568

Mon 16/1114:45 -

2 stops22h 35m

Tue 24/1118:20 -

3 stops30h 40m

Deal found 5/11£571

Best flights from Portland to United Kingdom
Discover carefully curated flight deals from Portland to United Kingdom that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Tue 27/415:30 -

1 stop12h 25m

Wed 12/521:25 -

1 stop22h 40m

Deal found 4/11£573

Sun 25/422:59 -

2 stops47h 31m

Thu 29/406:05 -

2 stops25h 52m

Deal found 3/11£590

Sun 25/420:25 -

1 stop14h 55m

Thu 29/408:50 -

1 stop17h 45m

Deal found 3/11£668

Tue 9/311:10 -

2 stops18h 35m

Tue 23/308:40 -

2 stops19h 47m

Deal found 31/10£677

Tue 5/110:10 -

2 stops16h 40m

Thu 14/112:15 -

1 stop12h 45m

Deal found 1/11£701

Wed 2/1207:10 -

1 stop19h 20m

Tue 8/1220:25 -

1 stop23h 15m

Deal found 1/11£716

Thu 29/407:00 -

2 stops26h 40m

Mon 17/519:30 -

2 stops29h 04m

Deal found 31/10£737

Mon 8/207:10 -

2 stops19h 10m

Wed 10/206:10 -

2 stops20h 49m

Deal found 31/10£672

Mon 1/206:40 -

2 stops17h 15m

Wed 10/208:40 -

2 stops20h 13m

Deal found 2/11£677

Thu 4/313:37 -

2 stops16h 38m

Tue 16/317:25 -

1 stop30h 25m

Deal found 31/10£683

Sat 13/213:00 -

3 stops24h 35m

Sat 27/206:40 -

2 stops22h 47m

Deal found 1/11£737

Tue 1/1214:45 -

1 stop12h 05m

Sun 13/1212:15 -

2 stops18h 30m

Deal found 3/11£739

Thu 18/316:05 -

3 stops33h 55m

Wed 24/306:10 -

2 stops19h 10m

Deal found 3/11£711

Tue 26/107:00 -

2 stops19h 05m

Tue 2/212:40 -

1 stop17h 22m

Deal found 2/11£729

Sat 10/420:25 -

Nonstop9h 35m

Wed 21/416:30 -

Nonstop10h 05m

Deal found 3/11£730

Mon 1/313:58 -

3 stops23h 37m

Wed 10/306:40 -

2 stops22h 47m

Deal found 4/11£738

Fri 9/413:38 -

1 stop17h 57m

Sun 18/406:30 -

1 stop12h 40m

Deal found 31/10£744

Find flight deals from Portland to United Kingdom

Round-trip from	£497
One-way from	£194
Popular in	July
Cheapest in	February
Average price	£630
Good round-trip deal	£1,636 or less

16/11-19/11
2 total stops
45h 30m total
Portland to United Kingdom

Search Deals

16/11-31/12
2 total stops
21h 55m total
Portland to United Kingdom

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£104 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Price to beat on a round-trip flight from Portland to United Kingdom.

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

PortlandManchester

PDX Portland - MAN Manchester

PDXMAN

Portland

Mon 16/11

14:45-10:45

1 stop12h 00m

Manchester

Wed 31/12

00:00-15:00

Nonstop0h 00m

£197

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Mon 15/2

14:45-10:50

1 stop12h 05m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£197

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Wed 14/4

15:15-13:20

1 stop14h 05m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£252

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Sat 20/3

19:10-09:20

2 stops31h 10m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£252

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Sat 3/4

19:10-13:20

1 stop34h 10m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£252

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Tue 8/12

14:45-17:00

2 stops18h 15m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£253

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Tue 9/3

16:05-07:10

3 stops31h 05m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£258

PortlandManchester

PDX Portland - MAN Manchester

PDXMAN

Portland

Thu 8/4

20:25-19:15

1 stop14h 50m

Manchester

Wed 31/12

00:00-15:00

Nonstop0h 00m

£271

PortlandManchester

PDX Portland - MAN Manchester

PDXMAN

Portland

Thu 8/4

15:30-00:55

2 stops25h 25m

Manchester

Wed 31/12

00:00-15:00

Nonstop0h 00m

£271

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Tue 17/11

14:45-21:40

3 stops22h 55m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£273

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 34 resultsSorted by cheapest first

Best time to book a flight from Portland to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Portland with our price prediction graph.

PDX-MAN

PDX-LHR

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to the United Kingdom

PDX-GB0

PDX-MAN

PDX-LHR

What is the cheapest month to book a flight from Portland to United Kingdom?

Currently, January is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £576). Flying from Portland to United Kingdom in July is currently the most expensive (average of £937). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to GB?

When flying from Portland to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How far ahead should I book a flight from Portland to United Kingdom?

The price you pay for your flight from Portland to United Kingdom may vary depending on when you book. For the best chance of a lower fare, look to book 2 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing United Kingdom

Get a feel of what it's like to fly with Icelandair and British Airways from Portland to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Icelandair

6.9

Okay

767 reviews

Check prices

Reviews

1 / 20

6.0

Good

William,Jun 2026

SEA - KEF

First time Iceland Air. Ridiculously small amount of leg room, flight was hotter than hades and people kept requesting for cooler air that never came. You pay for everything, no food of any kind unless you pay which I've never seen on a flight of this length. Just seemed like they are cheap as possible about everything. Won't fly with them again if I can avoid it.

Icelandair

6.9

Okay

767 reviews

Icelandair

6.9

Okay

767 reviews

Check prices

Reviews

1 / 20

6.0

Good

William,Jun 2026

SEA - KEF

British Airways

6.7

Okay

8,283 reviews

Icelandair

6.9

Okay

767 reviews

Check prices

Reviews

1 / 20

6.0

Good

William,Jun 2026

SEA - KEF

Related info for your journey

What airport do you fly from for flights from Portland to United Kingdom?
Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to United Kingdom.
How long is the flight from Portland to United Kingdom?
Departing from Portland to United Kingdom will take you 12h 25m. The distance between Portland and United Kingdom is about 4896 mi. This flight may include one or multiple stops.
What are the most popular routes from Portland to United Kingdom?
The most popular flight routes from Portland to United Kingdom are Portland - London Heathrow, Portland - London Gatwick and Portland - London Stansted.
What are the most reliable airlines from Portland to United Kingdom?
No one likes to see their flight delayed. When booking a flight from Portland to United Kingdom consider choosing American Airlines (79%), Alaska Airlines (79%) or Aer Lingus (79%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Portland to United Kingdom?
Looking for the cheapest flight from Portland to United Kingdom? While on average our users pay £1,687, our data indicates the cheapest price to be £990. The most popular route (Portland - London Heathrow), is priced around £498.
Can I find deals for flights from Portland to United Kingdom that include hotel bookings?
Yes. In addition to deals on Portland to United Kingdom flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portland to United Kingdom?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to United Kingdom.
Can I find deals for business class flights from Portland to United Kingdom?
Yes. Cheapflights offers flight deals from Portland to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Portland to United Kingdom?
Currently, January is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £576). Flying from Portland to United Kingdom in July is currently the most expensive (average of £937). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

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Popular flights

Top regions

Top airline flying from Portland to United Kingdom

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£457	Average£836	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Portland to United Kingdom?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to United Kingdom from Portland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Portland to United Kingdom?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to United Kingdom.

Can Cheapflights find flights from Portland to United Kingdom with no change fees?

Yes! Cheapflights helps users easily find flights from Portland to United Kingdom with no change fees.

Can Cheapflights notify me if prices for flights from Portland to United Kingdom become cheaper?

Not ready to book yet? You can track prices for flights from Portland to United Kingdom on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Portland to the United Kingdom from £194

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portland to United Kingdom

Cheapest flights from Portland to United KingdomExplore the most affordable flight options available from Portland to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Explore the most affordable flight options available from Portland to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Portland to United KingdomDiscover carefully curated flight deals from Portland to United Kingdom that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Discover carefully curated flight deals from Portland to United Kingdom that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Direct flights from Portland to United KingdomExplore direct flight options from Portland to United Kingdom based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 November 2026.

Explore direct flight options from Portland to United Kingdom based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 November 2026.

Last-minute flights from Portland to United KingdomDiscover last-minute flight deals from Portland to United Kingdom. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Portland to United Kingdom. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Portland to United KingdomSearch for one-way flight options from Portland to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Search for one-way flight options from Portland to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Find flight deals from Portland to United Kingdom

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

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

Best time to book a flight from Portland to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Portland with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Portland to United Kingdom?

What is the cheapest time of day to fly from PDX to GB?

Find hourly flight availability from Portland to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 November 2026.

When flying from Portland to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How far ahead should I book a flight from Portland to United Kingdom?

The price you pay for your flight from Portland to United Kingdom may vary depending on when you book. For the best chance of a lower fare, look to book 2 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing United Kingdom

Get a feel of what it's like to fly with Icelandair and British Airways from Portland to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Portland to United Kingdom?

How long is the flight from Portland to United Kingdom?

What are the most popular routes from Portland to United Kingdom?

What are the most reliable airlines from Portland to United Kingdom?

What are the cheapest flights from Portland to United Kingdom?

Can I find deals for flights from Portland to United Kingdom that include hotel bookings?

How can I find direct flights from Portland to United Kingdom?

Can I find deals for business class flights from Portland to United Kingdom?

What is the cheapest month to book a flight from Portland to United Kingdom?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to United Kingdom by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Portland to United Kingdom by cabin class

Find flights from Portland to United Kingdom, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portland and United Kingdom flights

Browse other Portland and United Kingdom flight options. Last updated on 5 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly to United Kingdom regions

Consider these flights travelling to United Kingdom regions.

Top airline flying from Portland to United Kingdom

Fly with Cheapflights

How does Cheapflights help users find flights from Portland to United Kingdom?

Why should you use Cheapflights to find cheap flight tickets from Portland to United Kingdom?

Can Cheapflights find flights from Portland to United Kingdom with no change fees?

Can Cheapflights notify me if prices for flights from Portland to United Kingdom become cheaper?

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Travel Smart

Cheapest flights from Portland to United Kingdom
Explore the most affordable flight options available from Portland to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Portland to United Kingdom
Discover carefully curated flight deals from Portland to United Kingdom that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Direct flights from Portland to United Kingdom
Explore direct flight options from Portland to United Kingdom based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 November 2026.

Last-minute flights from Portland to United Kingdom
Discover last-minute flight deals from Portland to United Kingdom. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Portland to United Kingdom
Search for one-way flight options from Portland to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.