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.

Flying between Cardiff and Seattle? Consider these airports

Depending on your destination and where you’re starting from, it might make sense to look beyond the main hubs.

• Airports in Cardiff: Cardiff has only one airport in service, Cardiff.
• Airports in Seattle: Seattle has 2 airports - Boeing Field, Lake Union.

Check if your destination airport has a rail link — it can make getting around easier. Jetcost lets you view options from all Cardiff airports in a single search.

Refine your flight search from Cardiff to Seattle

With Jetcost, it’s easy to narrow down results to find flights that match your schedule and preferences. You can filter by airline, price, trip type, and more — including offers from the best airlines and travel agencies.

Other popular destinations

Also looking at United States? These cities are trending: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Online agencies can show different offers for the same flight — it’s worth comparing. Filters let you narrow things down further, like selecting a specific time slot to find flights that suit you best.