Southern operates a train from Southampton to Waterlooville hourly. Tickets cost $15 - $23 and the journey takes 40 min. Alternatively, you can take a bus from Southampton to Waterlooville via Stamshaw, International Port in around 1 h 11 min.
How to get from Southampton to Waterlooville
From Southampton Central train to Havant. 40 min £13. From Southampton City Centre, Coach Station bus to Stamshaw, International Port then line 8 bus to Waterlooville, Precinct. 1 h 11 min £5. From Southampton taxi to Waterlooville. 27 min £60. From Southampton drive to Waterlooville. 27 min £4. From Southampton rideshare to Havant. 43 min £3.