Here's one:
http://www.sewingexpo.com/KansasCityMO.aspx
It's at the KCI Expo Center and is coming up in October.
Northland Needlers Quilt Guild is having a quilt show this coming weekend at the Salvation Army on Oak Traffic Way in Gladstone, MO.
The big machine quilting show, MQS, is in Overland Park, KS in the spring.
That should get you started. And, if you go into any of the local LQS's, they usually have some information on upcoming quilt shows too.
Have fun and welcome to Kansas City!