[jacquesm]

When was that? I drove through coming from Italy a few week ago exiting at the French border on the North side and nobody looked at any passports.

[CaptainZapp]

You usually don't even have to show your passport when boarding a plane in Zurich as long you're flying within the Schengen area.

I think that's the case in most Schengen airports now.

What can happen is that you're checked by customs at the border. Since Switzerland is not in a customs union with the EU. Generally speaking, though, it's free flowing.