By public transportation from the airport:

From Zurich Airport you have direct tram connections to Milchbucl or Universität Irchel within 25 Minutes.
Line 10: labeled Hauptbahnhof, leave the tram at the station Milchbuck or Irchel

By public transport

From Zurich Main Station you get to the Department within 15 minutes by tram:
Line 10: labeled Zürich Flughafen, leave the tram at the station Universität Irchel
Line 14: labeled Seebach, leave the tram at the station Milchbuck
Line 7: labeled Bahnhof Stettbach, leave the tram at the station Michbuck.

Public transport Zurich: ZVV

By car

A large underground parking called 'Irchel' is directly accessible from the freeway A1. 
Route planner: Campus Irchel

By taxi/cab:

Ask the driver to bring you to the taxi stand of the University of Zurich Irchel at (from Zurich Airport approximately CHF 40.-).

Tips for finding your way around the Irchel Campus and its buildings

Buildings on the Irchel Campus are numbered from along the central axis of the campus. Buildings and underground sections to the left of the central axis have two-figure numbers starting with an uneven digit, i.e. between 10 and 19, 30 and 39, and 50 and 59. Buildings and underground sections to the right of the central axis have two-figure numbers starting with an even digit.
 
The numbering scheme for buildings and rooms is as follows:
Y11 G 23
Y = Irchel Campus
11 = building number
G = floor
23 = room number
Access from one building to another is via Floor G.