Planning a flight from Cardiff to Seattle?

Flight prices from Cardiff to Seattle 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 Cardiff or Seattle?

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

• Airports in Cardiff: Only Cardiff is currently operational.
• Airports in Seattle: Seattle has 2 airports - Boeing Field, Lake Union.

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

Flight filters for the route Cardiff – Seattle

Customize your search on Jetcost to focus only on flights that suit your needs. Whether you want a direct connection, specific airline, or shorter layover, filters help you find it faster.

Other popular destinations

Flights to United States are often searched alongside: Las Vegas, Los Angeles, Miami, New York City, Orlando.

The cheapest flights might leave at odd hours or arrive at less central airports — keep that in mind. If you travel often, you can always select your trusted airlines from the available options.