If I have a 6 pm flight out of KC is the. 345 flight enough time. Says it get there at 5 pm

I drive for MO X the 230 departure would arrive at 440pm if I was driving. It is an on time service so unless there is an accident on 70 or road construction you will be on time. Travel time from the time of departure is usually 2 hours and 10 minutes from MO X

Give yourself atleast 3-4 hrs travel from mox its about 2 hr 15m run with weather and traffic add an hour

Call them.