On Fri, 17 Jan 2014, Jack Campin wrote:

I would like to get from Venice airport to Ariano del Polesine
(a small town south of Venice) on 25 April

I did some quick checks. Apparently the bus operator in the area is
SITAbus, a subsidiary of Trenitalia, and the site you quoted is correct
(unfortunately they do not provide line pdf timetable, just a search
engine).

I tried a query on today's date, next Saturday and next Sunday, and
apparently there is no Sunday service, so this could explain why you
can't find anything on April 25 (holiday).

Ariano (province of Rovigo) looks located near Adria, east of Rovigo.

There is a Trenitalia railway line from Rovigo to Adria and Chioggia,
and there is a private railway line from Venice to Adria.

For the latter you can get timetables from this site
http://www.sistemiterritorialispa.it...iali/index.asp
(timetable link "Orario" near the train picture)

For Trenitalia use any of its search engines, I like the RFI ones where
you can obtain the arrival or departure timetables printout on display
in the stations
http://www.rfi.it/cms/v/index.jsp?vg...40 16f90aRCRD

Apparently either you go with Trenitalia from Venice to Rovigo, and
then Rovigo to Adria, or directly from Venice to Adria with the private
railway, or maybe you could navigate from Venice to Chioggia, and take
the Trenitalia train Chioggia-Adria (the line is Rovigo-Adria-Chioggia),
could be an experience !

I let you find the best way to go from the airport to the most
convenient station (Santa Lucia or Mestre), and to decide whether to
take a taxi in Rovigo or Adria.