In all the times I've gone and at all the different resorts I've stayed at, I never pay attention to how long the bus rides are. You can get to the bus stop at the same time as your bus or you may have to wait 10 mins for your bus to arrive. So once I'm on the bus, I just sit back and enjoy the ride! I'd say on average maybe ten minutes, give or take depending on which park you are going to.