Longest? Hmm would have to be a bus ride from Mobile, Al to Reading, PA. 4 days on a bus w/ 4 kids? Not fun at all because there was sooo man layovers. It was a bitch, but the minute I got to Reading, PA. My first thought was, GOT DAMN its cold! I want to go back down to the heat! Then my second thought was, yes I'm home! :)