Recent plane to train experience at ZRH
Nothing beats Swiss transport efficiency (this was last Saturday):
7:14a wheels down ZRH
7:31a passport control
7:36a got luggage
7:38a left airport
7:39a arrived train station (my preferred train was direct from ZRH but it stopped at Zurich HB and there was another in 7 minutes that would have permitted connecting at my train during its 10 minutes at HB)
7:48a groceries purchased from Migros
7:53a Starbucks grande in hand
7:56a arrived platform 3
8:08a Departure of my preferred InterCity train (with another every hour)
42 min from touchdown to trackside including shopping and coffee!
My flight UA 52 happened to be about 25 minutes early but I probably would have made the train had the former been on time (albeit without breakfast and coffee for my rail journey, though IC1 does have a restaurant car).
As to tickets you can use the SBB app and buy the tickets once you land. You can register an account and form of payment in advance ( I used this to buy a day travel pass at a steep discount a couple of months in advance).