Cheap flights from Sioux City, IA to Seattle, WA

Travelers frequently search for route combinations, such as Sioux City and Houston, San Juan, New York, Orlando, Las Vegas, Denver, Chicago, Miami, Los Angeles, Atlanta, Mexico City, Bogotá, Dallas, Phoenix, Philadelphia, San Francisco, Cancún, Washington, D.C., Dhaka, Fort Lauderdale.

Travelers frequently search for route combinations, such as Seattle and Denver, Atlanta, Houston, Las Vegas, Austin, Orlando, Los Angeles, Salt Lake City, Mexico City, Paris, London, Washington, D.C., Detroit, New York, Minneapolis, Phoenix, Dallas, Raleigh, Charlotte, Cleveland.

The main airport in Sioux City is Sioux Gateway. It is also served by Eppley Airfield, Sioux Falls Regional, Sioux Gateway, Lincoln, Fort Dodge Regional.

The main airport in Seattle is Seattle–Tacoma International. It is also served by Portland International, Vancouver International, Bellingham International, Abbotsford International, Paine Field Everett, Vancouver Harbour Flight Centre, Yakima Air Terminal, Victoria Inner Harbour SPB, Pangborn Memorial.

Yes, it's possible to combine different modes of transport between Sioux City and Seattle thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Sioux City and Seattle can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Sioux City and Seattle with United Airlines.

If you don’t have specific dates for your trip between Sioux City and Seattle, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between Sioux City and Seattle, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What's more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.