Metrolink Trains operates a train from Riverside to Perris 4 times a day. Tickets cost $7 - $10 and the journey takes 36 min. Alternatively, Authority operates a bus from Riverside to Perris hourly, and the journey takes 53 min.
From Riverside-Downtown station train to Perris Downtown. 36 min $8. From Vine St Layover line 208 bus to Perris Transit Center. 53 min. From Magnolia + Beatty line 20 bus to Iris + Lasselle then line 19 bus to Fourth + Perris. 1 h 56 min. From Riverside taxi to Perris. 21 min $63. From Riverside drive to Perris. 21 min $2.