I live in New Braunfels and work for UPS... I did the pax carrier commute for 10 years outta AUS and SAT... it’s doable, but, not without its share of headache. I found ORD to be easier to get to than IAH... that drive to HOU/IAH got old real quick..
I highly recommend you look at UPS/FEDEX... commercial tickets and/or guaranteed booked jumpseats have added years to my life.