Niki was an Austrian low-cost airline headquartered in Office Park I at Vienna Airport in Schwechat. It operated scheduled and charter services to European and North African leisure destinations from Vienna, Salzburg, Graz and Innsbruck and also started services from several German airports in March 2017. Niki had a variety of owners, including two stints of ownership under Niki Lauda (1949–2019). In January 2018, the airline was acquired by Lauda, an airline that also had ties to Niki Lauda.

Schwechat is a city southeast of Vienna known for the Vienna International Airport and Schwechater beer. The city is home to the refineries of the Austrian national oil company OMV.