$483 Cheap Flights from Portland (PDX) to Cardiff (CWL)

View $483 flight on Tue, May 5, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Cardiff International Airport (CWL)

Cheap Flights from Portland to Cardiff (PDX-CWL)

Prices were available within the past 7 days and start at $483 for one-way flights and $751 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Wed, Dec 31 - Tue, Jan 13
PDX
Portland
CWL
Cardiff
$751 Roundtrip, found 1 hour ago
$751
Roundtrip
found 1 hour ago
Select Virgin Atlantic flight, departing Wed, Dec 31 from Portland to Cardiff, returning Tue, Jan 13, priced at $751 found 1 hour ago
Delta
Tue, Dec 30 - Tue, Jan 13
PDX
Portland
CWL
Cardiff
$756 Roundtrip, found 1 hour ago
$756
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Dec 30 from Portland to Cardiff, returning Tue, Jan 13, priced at $756 found 1 hour ago
Virgin Atlantic
Wed, Dec 31 - Wed, Jan 14
PDX
Portland
CWL
Cardiff
$761 Roundtrip, found 1 hour ago
$761
Roundtrip
found 1 hour ago
Select Virgin Atlantic flight, departing Wed, Dec 31 from Portland to Cardiff, returning Wed, Jan 14, priced at $761 found 1 hour ago
Delta
Tue, Dec 30 - Wed, Jan 14
PDX
Portland
CWL
Cardiff
$766 Roundtrip, found 1 hour ago
$766
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Dec 30 from Portland to Cardiff, returning Wed, Jan 14, priced at $766 found 1 hour ago
Delta
Sun, Dec 7 - Tue, Dec 23
PDX
Portland
CWL
Cardiff
$810 Roundtrip, found 1 hour ago
$810
Roundtrip
found 1 hour ago
Select Delta flight, departing Sun, Dec 7 from Portland to Cardiff, returning Tue, Dec 23, priced at $810 found 1 hour ago
Delta
Tue, Dec 9 - Tue, Dec 23
PDX
Portland
CWL
Cardiff
$815 Roundtrip, found 1 hour ago
$815
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Dec 9 from Portland to Cardiff, returning Tue, Dec 23, priced at $815 found 1 hour ago
Virgin Atlantic
Wed, Apr 29 - Tue, May 5
PDX
Portland
CWL
Cardiff
$820 Roundtrip, found 2 days ago
$820
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Wed, Apr 29 from Portland to Cardiff, returning Tue, May 5, priced at $820 found 2 days ago
Delta
Wed, Apr 22 - Wed, May 13
PDX
Portland
CWL
Cardiff
$821 Roundtrip, found 1 hour ago
$821
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Apr 22 from Portland to Cardiff, returning Wed, May 13, priced at $821 found 1 hour ago
KLM
Mon, Dec 29 - Tue, Jan 13
PDX
Portland
CWL
Cardiff
$832 Roundtrip, found 1 hour ago
$832
Roundtrip
found 1 hour ago
Select KLM flight, departing Mon, Dec 29 from Portland to Cardiff, returning Tue, Jan 13, priced at $832 found 1 hour ago
Air France
Tue, May 5 - Fri, May 15
PDX
Portland
CWL
Cardiff
$892 Roundtrip, found 6 days ago
$892
Roundtrip
found 6 days ago
Select Air France flight, departing Tue, May 5 from Portland to Cardiff, returning Fri, May 15, priced at $892 found 6 days ago

Alternative airports near Cardiff

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cardiff Intl. CWL. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $940
CWL
Cardiff Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $940

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL) cost?
Secure a cheap one-way flight from $483 or cheap return flight from $751 from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL)?
The cheapest month to fly from PDX to CWL is December, when demand is low. Off-peak months are typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL)?
To find the cheapest airline flying from PDX to CWL, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL)?
You'll need to take a flight with a layover when traveling from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from PDX to CWL?
Usually you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL)?
To avoid possible delays on the Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL) route, fly before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL) last-minute?
Holding off until just before your departure to book your flight from PDX to CWL often results in higher prices. While you may find some last-minute offers, there's no guarantee. Keep your travel plans flexible to boost your chances of getting a bargain.
Is it cheaper to book a PDX to CWL flight and hotel package?
You'll generally save money by booking a PDX to CWL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your ideal flights and accommodations, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Cardiff Intl. Airport (CWL)?
If you reserved your PDX to CWL flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Portland Intl.
Destination airport
Cardiff Intl.
Airlines serving
Air France, Delta, KLM, Virgin Atlantic
Roundtrip price
$751
Distance
4824 mi

Book with confidence

Portland to Cardiff Flights

The cheapest times to fly from Portland to Cardiff

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Cardiff are during the month of December. You can find some of the cheapest flights from Portland to Cardiff with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Cardiff

Sunday is one of the best days to book for cheap flights from Portland to Cardiff: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Cardiff

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Cardiff in 2025. You can also book with separate airlines for your outbound and return journeys, from $483 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Cardiff flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Cardiff airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Portland to Cardiff Flights

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*Available to One Key members.