Thank you ALL for trying to help me in this issue.
All I can say is I was checking flights on Southwest Airlines, and also Googled for WHICH airport I would be flying into. I ask when flying from Kansas City, MO to Galveston, TX, "which" airport would I fly into? Southwest Airlines "highlighted" the Houston/Hobby airport, of the two that were mentioned. When I Googled from my phone it said William P. Hobby Airport (HOU), located in Houston, TX, about 40 minutes from Galveston. It is possible the IAH, but I have no clue how to find out, other than what I just posted here.