Travel is available on Tuesday, Wednesday, and Saturdays from late September through early May 2019. This fare is pretty easy to find via Delta's website, and as an example I found tickets departing LAX on Saturday, October 6 and returning from MCI on Tuesday, October 9, 2018. Which is valid over the Columbus Day weekend if you have that Monday off.
For all you Angelenos we have a full rundown of deals departing Los Angeles (LAX) right here on our flight deal page to satisfy all travel needs.
If you are looking for accommodation in KC, here's what's available on the mentioned dates from Hotelwatchdog.