From what I'm seeing, it can be semi-risky to book a EuroCity train from Zurich to Como S. Giovanni because if your plane is delayed, the train tickets are wasted. The advanced fare is 29 euros, while same day is 72 euros.
How about this option:
Book a ticket on the SBB site from Zurich to Chiasso ($36) It appears these are valid for the day. Then buy a ticket from Chiasso to Como S. Giovanni (which is very inexpensive - about 2 euros). Does this option seem to be the safest and have the most flexibility?
Another reason I like the Zurich to Chiasso option is because they offer a 13:09 train. The train to Como S. Giovanni is either 11:09 or 15:09.
Any experienced travelers to this region care to offer opinions?
Thanks!