ScotRail operates a train from Kilmarnock to Troon every 3 hours. Tickets cost $4 - $6 and the journey takes 12 min. Alternatively, Stagecoach West operates a bus from Kilmarnock to Troon hourly. Tickets cost $4 - $5 and the journey takes 47 min.
From Kilmarnock train to Troon. 12 min £3. From Kilmarnock, Bus Station (Sturrock Street) line 10 bus to Troon, Academy Street. 47 min £3. From Kilmarnock taxi to Troon. 15 min £20. From Kilmarnock drive to Troon. 15 min £1.