The driving time from Napa to Yellowstone National Park via Reno, Idaho Falls is 14 hours 31 minutes by road. You can also find other options to travel from Napa to Yellowstone National Park via Reno, Idaho Falls like bus, subway, tram, train and rail. To know the travel distances while planning a journey, find the
Distance from Napa to Yellowstone National Park via Reno, Idaho Falls!