Please arrive the night before, to insure you wont miss the ship. I have read of many people this has happened to because of late flights or getting bumped from their fligths at the last minute. I know it costs a few dollars to spend the night at a hotel, but it is well worth it compared to missing your cruise altogether. Also remember September is hurricane season, which can cause lots of delays at airports. I live in central florida and the past 2 years the airport was completely closed once, and even when the other storms came through and it wasnt closed it was delaying flights in and out for hours!! It is like a terrible chain reaction at the airports. The storm could be clear down across the keys, but it will effect the flights here.
So be safe and come in a day early. There is a hotel right at the airport or there are several at cocoa beach. some have free shuttles to and from the ships too. Make your reservations soon, as these places fill up on friday and saturday nights fast with cruisers as well as beach goers.
mom x4,grandma x4