RIHGA Royal Hotel Sakai is at very convenient location. No flustration of access either from Kansai Int'l airport or from Namba in Osaka city.
BY limited express "Rapit B" of Nankai Line or Nankai Line ( Bound for Namba station)
Hours: 05:45-23:30 ( Rapit B- apprx. 24 min. and regular train - apprx. 40 min.)
Fare: "Rapit B" - JPY 1,300
Regular train- JPY 800

Reference site: Kansai Int'l Airport