Fly from Seattle to Kansas City for $177 round-trip, including all taxes, on Continental. This fare is valid for travel on Tuesdays and Wednesdays, with a 330-day travel period (though summer dates are blacked out). Tickets require an advance purchase of 21 days.
You'll find similarly low fares to/from Kansas City and other destinations on the West Coast. Please visit our Kansas City fare page for a complete listing.