Airports serving the major cities of Ashgabat, Dashoguz, Mary, Turkmenabat, and Turkmenbashy, which are operated by Turkmenistan's civil aviation authority's airline, Türkmenhowaýollary, feature scheduled domestic commercial air service. Under normal circumstances international scheduled commercial air service is limited to Ashgabat.  During the COVID-19 pandemic, however, international flights take off from and land at Turkmenabat, where quarantine facilities have been established.