Cheap flights from Sioux City to Seattle from $349

Travelers frequently search for route combinations, such as Sioux City and Toronto, Shanghai, San Francisco, Minneapolis, Houston, Salt Lake City, Doha, Spokane, Cleveland, San José, Paris, Austin, Lviv, Kansas City, Saint Thomas, Melbourne, Washington, D.C., Reno, Manila, Manchester.

Travelers frequently search for route combinations, such as Seattle and New York, Los Angeles, Mexico City, San Francisco, Guadalajara, Las Vegas, Phoenix, Calgary, Ontario, Denver, Chicago, San Diego, Washington, D.C., Dallas, Boston, Salt Lake City, Orlando, Houston, London, Honolulu.

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

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

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.

There are a number of airports in and around Sioux City. The main one is Sioux Gateway and other nearby airports include Eppley Airfield, Sioux Falls Regional, Lincoln, Fort Dodge Regional, Sioux Gateway

There are a number of airports in and around Seattle. The main one is Seattle–Tacoma International and other nearby airports include Vancouver International, Portland International, Bellingham International, Abbotsford International, Paine Field Everett, Vancouver Harbour Flight Centre, Pangborn Memorial, Victoria Inner Harbour SPB, Yakima Air Terminal.