Planning a flight from Seattle to Cardiff?

Flight prices from Seattle to Cardiff change depending on demand and time of booking.

Choose a date to explore the best fares now.

Many users find better fares by booking several weeks in advance. In fact, for many routes, booking early is one of the best ways to save.

Is there more than one airport in Seattle or Cardiff?

Even short-haul routes can benefit from considering secondary airports. It may open up more flight times or cheaper fares.

• Airports in Seattle: Seattle has 2 airports - Boeing Field, Lake Union.
• Airports in Cardiff: Cardiff is the only airport in operation.

Airports with more daily flights offer more flexibility if plans change or delays occur. If you’re flexible, consider airports near Cardiff as well.

Customize your flight from Seattle to Cardiff

Jetcost allows you to filter by travel dates, duration, layovers, carriers, and booking providers. You’ll find direct and connecting flights, one-way or round-trip, from the best airlines and travel agencies.

Other popular destinations

Thinking about United Kingdom? You might also consider: Edinburgh, Glasgow, London, Manchester, Newquay.

You can sort results by price, duration, or departure time to find the best option for you. When available, results always include both low-cost and traditional airlines.