My dad lives in the northern suburbs of Cincinnati. I visit a number of times a year and always go into Dayton. It is a really easy airport to get in and out of. It is more like an hour to an hour and 45 minutes from downtown. That is a bit farther than CVG. On the other hand, if you dont have checked bags you can proably make it from your gate to your rental care in 10 minutes. Im guessing 30 minutes at CVG, minumum, maybe 45. Dayton is often much cheaper too as you discovered. I havent flown into CVG for about 7 years.