Yamaguchi Ube Airport is an air gateway to Yamaguchi Prefecture. It is located in Yamaguchi City. Available flights are only round trips to/from Tokyo. However, you can enjoy sightseeing leisurely into the night because the flights are available from about 7 am until about 8 pm.
It takes more than an hour by train or bus from Yamaguchi Ube Airport to downtown Yamaguchi City. It takes about 50 minutes if you use share taxi "Airport Express". Since this airport is located in a remote area, it is ideal to rent a car at the airport in order to start sightseeing right away. There is a car rental terminal on the 1st floor of Airport building annex. Renting a car at this location is highly recommended.
Drive along the road from Yamaguchi Ube Airport to downtown Yamaguchi City via prefectural road 220 → Yamaguchi Ube Road → prefectural road 20 (about 40 mins.) toward Yamaguchi Station. In addition, Yuda Onsen which is a popular tourist attraction in Yamaguchi Prefecture, is located on the way to Yamaguchi Station.