We've compared all 30 flights that go to or via Seattle every week, to find the best deal for you. Air France usually has the cheapest flights from Cardiff to Seattle, so keep an eye out for them in your search results. If they’re not the cheapest option, try searching by month to compare costs throughout the week.
When you fly from Cardiff to Seattle, you'll have three airlines to choose from for your 7575 km journey. If you're planning to fly in peak season, make sure you book in advance to get a reasonable price. Or you could hold on and try to get a last-minute bargain.
If you're fairly flexible about when you want to fly to Seattle, searching by month will show you the cheapest times to go. It’s also worth looking out for flights operated by Virgin Atlantic, KLM & Air France, as they're the most popular airlines for this journey.
It takes about 15 hrs 5 mins to fly from Cardiff to Seattle. Once you’ve chosen your flight, go through and fill out your details to complete your booking. If you haven’t yet sorted your hotel or car hire, take a look at our competitive rates – then you can book your flights and accommodation in one go.
