Sorry Dave.. didn't see this until now, but Karen gave the correct answer. Hobby is the older airport and services the commuter airlines more (and Southwest). So it may be harder to get a flight into it. But it is the closer Airport. Bush is on the opposite side of Houston.
I can't give a lot more adice than that since we typically drive to Galveston. My sister came in from Chicago in October. She flew into Dallas (DFW) and saved about $800 for the family. I lent her one of my cars and we drive down the day before. Not that its an option for most people (I'm a nice guy but I don't lend out cars to just anyone
Check both airports for fares, Hobby is closer, but not so much so that its worth the extra money for a more expensive flight.
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