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£318 Cheap Flights from Portland (PDX) to Cardiff (CWL)

View £318 flight on Mon, 9 Nov 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £318 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) cost?
You can find cheap one-way flights from £318 and cheap return flights PDX to CWL with Expedia. One-way flights typically cost between £402 and £1302. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when PDX to CWL ticket fares go up or down.
What is the cheapest month to fly from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
The cheapest months to fly from PDX to CWL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
Enter PDX to CWL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
Delta is one of the cheapest airlines offering connecting return flights from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.), with prices starting from around £707 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
To find a cheap flight from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
There are approximately 20 connecting flights per day from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.). Some common connection points include Minneapolis - St. Paul Intl. (MSP), Seattle - Tacoma Intl. (SEA), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
The earliest flight from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) typically departs around 12:30 AM local time. This service is operated by Delta and KLM. This is a seasonal service, active only in July. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
You'll typically find the most flights from Portland International Airport (PDX) to Cardiff International Airport (CWL) on a Saturday, with around 36 flights available. This gives you a good selection of options if you're planning to travel on a weekend. Major airlines on this route include Delta, KLM, and British Airways.
What are the most popular departure times for flights from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
The most popular departure times for flights from Portland Intl. (PDX) to Cardiff Intl. (CWL) are typically between 12pm and 3pm. Many major carriers, including KLM and Delta, offer flights during this window. Many travellers prefer this timing as it allows for a relaxed morning before heading to the airport, and you'll arrive at your destination with plenty of time to settle in.
How long does it take to fly from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
There are no nonstop flights from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.). The journey covers a distance of around 7,765 kilometres. If you're looking for flights with one stop, these typically take around 12 hours 18 minutes. Flights with two or more stops usually take longer, averaging about 19 hours 18 minutes. Keep in mind that these are average travel times, and your actual flight duration can vary depending on the specific route, layover times, and even factors like wind patterns.
Can you fly business or first class from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
Yes, you can fly business class from Portland, OR (PDX) to Cardiff (CWL). You can fly business class with KLM and Delta.
How do I earn miles on a Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) flight with Expedia?
It's easy to earn miles on a Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cardiff (CWL) from Portland, OR (PDX)?
If you're planning to travel to Cardiff from Portland Intl. (PDX), you can fly directly into Cardiff Intl. (CWL). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Minneapolis - St. Paul Intl. (MSP), or John F. Kennedy Intl. (JFK) before reaching Cardiff. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) at the last minute?
Typically, booking a last minute flight from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) flight and hotel package?
Securing a Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.)?
If you booked your Portland, OR (PDX-Portland Intl.) to Cardiff (CWL-Cardiff Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Portland Intl.
Destination airport
Cardiff Intl.
Distance
7718 km

Book with confidence

Compare flights from Portland to Cardiff easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Portland to Cardiff. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Cardiff Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Portland Intl. to Cardiff Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Portland Intl. (PDX) to Cardiff Intl. (CWL)

The easiest way to view the best deals on flights from Portland to Cardiff today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Portland Intl. to Cardiff Intl. start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Portland and Cardiff
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Portland to Cardiff flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Portland Intl. to Cardiff Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Portland to Cardiff easily and book with confidence

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