The cheapest way to the airport. Nothing listed is quicker.
SBB train to Zürich HB
Regional · SBB, on a ZVV zone ticketPickup, hours & luggage
Boards at. Zürich HB, any platform — take whichever train comes first
The ZVV three-zone single: CHF 7.20 an adult in 2nd class (CHF 11.80 in 1st), valid one hour; CHF 3.60 for children 6 to 15 and Half-Fare holders; under-6s free. A Multikarte of six rides is CHF 41.00 and can be shared. A 24-hour ticket for the same zones is CHF 14.40 — exactly two singles. Valid on every train from this station, S-Bahn and InterCity alike.
Luggage. Mainline Swiss trains: racks and standing space by the doors.
Hours. Every few minutes by day, in 9 to 13 minutes; nothing between about 00:24 and 04:33.