i'd consider it a road trip when you leave the state.
longest trip i've taken was from socal to south carolina. ~2600miles in 3 days (one way), and that's only because we slept too much.
also took a trip to texas from az for a concert in dallas. took me 21 hours to get there and 24 hours to get back.
my mom and i have gone to tempe, arizona just for lunch before. leave in the morning, get there for lunch, drive back that night.
i need to go on another road trip.