How long is the flight from Portland to United Kingdom?

Departing from Portland to United Kingdom will take you 12h 35m. 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 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 (85%), Alaska Airlines (85%) or Aer Lingus (85%) 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.

£208+ 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 27 September 2026.

Mon 26/1015:45 -

1 stop12h 00m

Mon 2/1111:55 -

1 stop13h 05m

Deal found 22/9£423

Wed 21/1015:30 -

1 stop12h 10m

Wed 28/1011:55 -

1 stop13h 05m

Deal found 23/9£432

Mon 23/1114:45 -

1 stop11h 10m

Mon 30/1111:55 -

1 stop13h 05m

Deal found 23/9£440

Mon 9/1114:45 -

1 stop11h 10m

Mon 16/1111:55 -

1 stop13h 05m

Deal found 25/9£441

Sat 24/1015:30 -

1 stop15h 00m

Sun 1/1107:45 -

1 stop17h 15m

Deal found 21/9£490

Mon 23/1114:45 -

2 stops14h 00m

Mon 30/1107:50 -

2 stops17h 10m

Deal found 23/9£506

Sat 10/1015:30 -

1 stop13h 50m

Fri 23/1014:15 -

1 stop11h 40m

Deal found 23/9£539

Sat 17/1015:30 -

1 stop13h 50m

Fri 23/1014:15 -

1 stop11h 40m

Deal found 22/9£544

Mon 16/1114:45 -

2 stops20h 00m

Mon 23/1107:40 -

2 stops17h 20m

Deal found 24/9£545

Sun 25/1018:45 -

1 stop14h 55m

Wed 4/1109:45 -

1 stop14h 05m

Deal found 22/9£553

Tue 3/1110:47 -

2 stops23h 08m

Tue 10/1109:05 -

2 stops21h 22m

Deal found 23/9£555

Sun 25/1014:25 -

2 stops19h 15m

Wed 4/1108:15 -

1 stop15h 35m

Deal found 22/9£559

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 27 September 2026.

Sun 8/1113:22 -

2 stops19h 18m

Wed 18/1110:55 -

2 stops19h 00m

Deal found 23/9£565

Mon 23/1117:45 -

1 stop14h 40m

Mon 30/1112:40 -

2 stops41h 21m

Deal found 23/9£584

Wed 28/1014:40 -

1 stop22h 20m

Wed 4/1112:40 -

1 stop16h 36m

Deal found 22/9£591

Thu 15/1019:29 -

2 stops51h 01m

Thu 29/1011:30 -

3 stops40h 32m

Deal found 22/9£614

Mon 25/107:00 -

2 stops17h 20m

Wed 3/209:05 -

2 stops20h 22m

Deal found 23/9£624

Tue 2/315:40 -

1 stop12h 40m

Fri 5/314:45 -

1 stop14h 28m

Deal found 25/9£679

Mon 1/213:00 -

3 stops24h 35m

Wed 10/210:20 -

2 stops18h 36m

Deal found 26/9£795

Fri 9/1013:05 -

1 stop20h 00m

Tue 13/1017:15 -

1 stop25h 55m

Deal found 24/9£1,052

Tue 1/1208:30 -

2 stops17h 25m

Tue 15/1209:50 -

2 stops20h 02m

Deal found 23/9£565

Tue 5/113:38 -

2 stops18h 07m

Thu 14/110:00 -

2 stops19h 27m

Deal found 23/9£593

Sun 8/1117:45 -

1 stop14h 55m

Sun 15/1105:40 -

1 stop18h 10m

Deal found 23/9£592

Mon 25/116:05 -

3 stops34h 15m

Mon 1/211:30 -

2 stops34h 45m

Deal found 23/9£661

Thu 15/1007:10 -

2 stops18h 50m

Thu 29/1014:55 -

1 stop26h 47m

Deal found 22/9£633

Mon 8/207:01 -

2 stops19h 19m

Wed 10/206:10 -

2 stops20h 29m

Deal found 26/9£676

Fri 9/1022:15 -

1 stop26h 00m

Tue 20/1005:50 -

2 stops19h 14m

Deal found 22/9£645

Mon 18/117:45 -

1 stop12h 45m

Fri 22/109:20 -

1 stop14h 30m

Deal found 26/9£790

Fri 4/1211:01 -

2 stops23h 29m

Thu 10/1206:40 -

3 stops23h 54m

Deal found 25/9£796

Tue 26/116:05 -

3 stops32h 55m

Wed 3/206:10 -

2 stops20h 29m

Deal found 26/9£676

Mon 30/1121:54 -

1 stop24h 56m

Tue 8/1209:35 -

1 stop31h 47m

Deal found 24/9£694

Sun 21/217:45 -

1 stop12h 50m

Thu 25/213:40 -

1 stop34h 10m

Deal found 25/9£791

Thu 21/113:00 -

3 stops24h 20m

Mon 25/106:40 -

2 stops22h 47m

Deal found 23/9£796

Tue 26/111:40 -

1 stop14h 50m

Wed 3/212:40 -

1 stop17h 46m

Deal found 26/9£665

Sat 13/222:59 -

1 stop29h 01m

Tue 16/214:30 -

1 stop26h 56m

Deal found 24/9£684

Mon 9/1114:45 -

2 stops19h 45m

Mon 16/1107:25 -

2 stops17h 35m

Deal found 25/9£695

Fri 11/1213:20 -

1 stop19h 40m

Tue 22/1217:30 -

1 stop26h 10m

Deal found 23/9£943

Tue 9/210:15 -

1 stop15h 45m

Tue 16/208:40 -

2 stops19h 43m

Deal found 26/9£676

Mon 1/317:45 -

1 stop15h 45m

Sat 6/319:15 -

1 stop28h 35m

Deal found 26/9£833

Sat 13/214:30 -

2 stops40h 30m

Tue 16/209:25 -

2 stops35h 50m

Deal found 25/9£712

Sat 27/222:59 -

2 stops24h 56m

Sun 7/312:35 -

1 stop15h 50m

Deal found 21/9£728

Fri 9/1015:31 -

2 stops17h 34m

Tue 13/1017:15 -

1 stop25h 55m

Deal found 24/9£988

Find flight deals from Portland to United Kingdom

Round-trip from	£423
One-way from	£208
Popular in	July
Cheapest in	January
Average price	£737

Icelandair
26/10-2/11
2 total stops
25h 05m total
Portland to United Kingdom

Search Deals

5/10-31/12
2 total stops
18h 55m total
Portland to United Kingdom

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£119 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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

PortlandEdinburgh

PDX Portland - EDI Edinburgh Turnhouse

PDXEDI

Portland

Sat 28/11

14:45-07:10

2 stops32h 25m

Edinburgh Turnhouse

Wed 31/12

00:00-15:00

Nonstop0h 00m

£215

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Mon 30/11

14:45-19:30

1 stop20h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£229

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Thu 22/10

15:30-07:40

3 stops32h 10m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£234

PortlandManchester

PDX Portland - MAN Manchester

PDXMAN

Portland

Sun 14/3

18:45-15:35

1 stop13h 50m

Manchester

Wed 31/12

00:00-15:00

Nonstop0h 00m

£240

Fastest return journey

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Wed 24/3

18:45-11:20

Nonstop9h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£253

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Sat 6/2

13:39-21:20

3 stops23h 41m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£256

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Tue 23/3

13:38-15:45

2 stops19h 07m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£260

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Sun 7/2

06:15-09:00

2 stops18h 45m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£260

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Mon 22/3

18:45-11:20

Nonstop9h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£264

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Thu 10/12

14:45-21:10

3 stops22h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£279

Flights are sorted by cheapest return flights first.

Deals found on 23/9

Showing 1-10 of 60 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-GLA

PDX-EDI

PDX-LHR

PDX-CWL

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-GLA

PDX-EDI

PDX-LHR

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

Currently, February is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £569). Flying from Portland to United Kingdom in July is currently the most expensive (average of £944). 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.

Weekly flight availability from Portland to United Kingdom

The most flights from PDX to GB0 are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

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 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.

British Airways

6.7

Okay

8,235 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

British Airways

6.7

Okay

8,235 reviews

British Airways

6.7

Okay

8,235 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

IAH - LHR

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 35m. 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 (85%), Alaska Airlines (85%) or Aer Lingus (85%) as they are the most reliable in getting you off to your destination on time.
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, February is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £569). Flying from Portland to United Kingdom in July is currently the most expensive (average of £944). 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

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Top airline flying from Portland to United Kingdom

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£465	Average£838	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 £208

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. 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 27 September 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 27 September 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 27 September 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 27 September 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 27 September 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 27 September 2026.

Last-minute flights from Portland to United KingdomDiscover last-minute flight deals from Portland to United Kingdom. Data last updated 27 September 2026 and is based on user searches.

Discover last-minute flight deals from Portland to United Kingdom. Data last updated 27 September 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 27 September 2026.

Search for one-way flight options from Portland to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

Find flight deals from Portland to United Kingdom

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 27 September 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.

Weekly flight availability from Portland to United Kingdom

The most flights from PDX to GB0 are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

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 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?

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 27 September 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 27 September 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 27 September 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 27 September 2026.

Last-minute flights from Portland to United Kingdom
Discover last-minute flight deals from Portland to United Kingdom. Data last updated 27 September 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 27 September 2026.