Are there buses/coaches from Bratislava Airport that go regularly to Vienna which do not need advance booking?

The Terravision coach that is recommended by Ryanair have some unrealistic times of departure. We arrive at Bratislava at 09:30 and the first coach departure after that is 10:30 and if we were delayed and missed it, the next coach leaving would be 18:30. Are there other buses or coaches leaving at regular intervals to Vienna which we could catch instead and if so, how much would the ticket cost?

take the train or bus to the BratislavaTRAIN STATION. then hop on a train to Vienna- it's only an hour, and fairly cheap. Just be warned that no one speaks any English at the Bratislava train station, and it's not the highest-end train station in Europe!!!

Head into the main train station on the 61 bus (costs about SKK 20 a head IIRC). There are then hourly services to Vienna's S眉dbahnhof (single ticket is about EUR 12). Bratislava is also worth a look.

If you miss the direct conection to Vienna you can get a to Bratislava bus station (about 30 min) and there is a conection every hour to Vienna.