Air transport in Slovenia is quite low, but has significantly grown since 1991. Of the three international airports in Slovenia, Ljubljana Jože Pučnik Airport in central Slovenia is the busiest, with connections to many major European destinations. The Maribor Edvard Rusjan Airport is located in the eastern part of the country and the Portorož Airport in the western part. The state-owned Adria Airways is the largest Slovenian airline; however in 2019 it declared bankruptcy and ceased operations. Since 2003, several new carriers have entered the market, mainly low-cost airlines. The only Slovenian military airport is the Cerklje ob Krki Air Base in the southwestern part of the country. There are also 12 public airports in Slovenia.