It's going to be Austin. Which actually if they were doing a serious search, wouldn't make it past the first round, depending where you are in Austin the friggin' airport is an hour away if you take I-35. You can take the toll road to the east and get there in a little over half an hour, but that's 6-9 bucks, I don't recall off the top of my head. Not even kidding, check out Google Maps at various times of the day. For example, right now say Amazon went where Dell is. 27.4 miles on I-35, 58 minutes. If they are serious about needing access to an airport, Austin is out.