I find on the Trenitalia web site that seats are not on offer on certain listed trains out of Tiburtina, for mid July. I was planning to pick up my tickets for mid July onwards, on arrival. Hope tickets will be availble.
Secondly, is it better to travel from Fiumicino airport to Orvieto, via Tiburtini or via Termini? My flight arrives in the morning.
Thanks in anticipation!