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Cardiff

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

PDX — CWL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Best time to book a flight from Portland to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Portland with our price prediction graph.
Estimated round-trip 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 Cardiff

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

Find hourly flight availability from Portland to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s optimal to fly from Portland to Cardiff in the morning. By choosing this option you can save up to 1% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with KLM from Portland to Cardiff to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,381 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Portland to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Portland to Cardiff round-trip?

    Currently priced at $827, KLM will fly you from Portland to Cardiff and back. In addition to KLM, many other airlines offer competitively priced options for your trip.

  • Can I find deals for flights from Portland to Cardiff that include hotel bookings?

    Yes. In addition to deals on Portland to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Cardiff?

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

  • Can I find deals for business class flights from Portland to Cardiff?

    Yes. Cheapflights offers flight deals from Portland to Cardiff 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 Cardiff?

    Currently, February is the cheapest month in which you can book a flight from Portland to Cardiff (average of $773). Flying from Portland to Cardiff in June is currently the most expensive (average of $1,622). 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

Traveling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry

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Alternative routes for Portland to Cardiff

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Portland to Cardiff

Discover the top airline that operate flights from Portland to Cardiff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$827Average$876FlexibilityNo cancel feeOn-time75%

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