The nearest airport is GRZ - Graz, located 44.0 km south west of Birkfeld.
Other airports nearby include MBX - Maribor (96.7 km south), VIE - Vienna Schwechat (107.5 km north east), KLU - Klagenfurt (Worthersee Intl) (129.1 km south west), BTS - Bratislava M R Stefanik (146.5 km north east),