We took our time getting off the Wonder at Galveston a couple of weeks ago and took a cab to Hobby. We arrived at the airport at 10 am. We would have had no trouble making an 11 am flight. There were very short lines for check-in and security. However, the week before, the Wonder was late arriving to the port due to weather. Also, I would have been thinking about making the early flight for the entire cruise. IMHO, a 11 am flight is very doable, but I would go with a later one.
MUN