Lounges you can book today with LoungePairLounge Osaka Central BlockLandside - Domestic Departures (Before Security Check) 　3F After arriving at the second floor of the central building, you will see a sign directing you to Lounge Osaka. Follow the sign to the second floor. Take the escalator up one floor near the security check area on the third floor, and you will see the Lounge Osaka sign on the wall. The entrance to the lounge is just ahead.