SBB is offering an early connection for the first time to Zurich Airport, arriving at 4.45 a.m. Airline passengers with early flights thereby reach Zurich Airport conveniently with public transport. The IR 36 leaves Zurich main station at 4.33 a.m. with an interim stop at Zurich Oerlikon at 4.40 a.m. At weekends the early train starts from Zurich Altstetten at 4.25 a.m.