score:5
Take a look at this list of Swiss Airlines check in times: https://www.swiss.com/us/EN/prepare/check-in/checkin-times
If you only have carry on you can check in online and/or get an electronic boarding pass on your phone, you can walk directly to security without having to stop at the counter. Personally, I would be fine with 60 minutes, but if you want to play it safe and stress free, 2 hours would be more than enough for any circumstances.
Upvote:1
Since I live in Switzerland I often fly from Zurich. For Inter-Europe flight, I go there about two hours before departure. For longer flights), I take about two and a half hours. Depends on the trains. Most longer flights(outside Schengen+UK I think) are at a Terminal where you need to take a short train/subway. Those take about 15 minutes longer to get to the gate.
With those times I have so far always waited at least one hour at the gate before I could board.