From Transwa Bay East Perth bus to Transwa Bay Kojonup. 4 h 2 min $39. From Perth drive to Kojonup. 2 h 46 min $37. From St Georges Tce Stand A C D line 40 bus to Perth airport, fly to Albany airport, taxi to Albany Hwy To Redmond T/O, then bus to Kojonup. 5 h 40 min $290.