How by train or bus can i get from the airport into the town?

There are buses outside the Treviso airport that are timed to meet the flights, it's about a 30 minute ride to Venice's Piazzale Roma, from whence you can catch a vaporetto to your hotel stop.

Buy your bus ticket at the little desk as you come out of Arrivals. It's easily missed so look out for the queue. Bus ride can take a little longer during morning and late afternoon commuting time.The bus goes to Piazzale Roma. Pick up a timetable in the office there for your return journey. We missed an evening bus and it was the last one. Had an anxious time- took train and then taxi to airport, making check in by the skin of our teeth.

The nicest way to approach Venice is by water. Get the free shuttle bus from outside the airport building to the Alilaguna jetty. It costs €12 to the city centre. Visit http://www.alilaguna.it/

The Aliguna does not run from Treviso airport.

Whoops sorry - I was thinking of Marco Polo Airport.