The information Anthony posted is correct. HOU is Hobby airport on the south side of town so you have one more option depending on your travel plan.
Are you making this trip just to come ride with us in Leakey? Wow
What are you going to ride?
I live in the south side. Tony lives on the north side. My plan is to drive to Leakey the 9th or 10th of October and return on Monday the 14th in the morning. It is an 8 hour ride from Leakey to my house. Are you traveling alone or are you bringing your wing? Let us know of your plans so we can accommodate you if we need to.