On October 31, 2007, Serbian government named him to the post of Jat Airways CEO (generalni direktor).

[1] Early on in his leadership of the airline, Vlaisavljević benefited from the positive business outcomes he inherited in terms of passenger growth, allowing Jat to end the year 2007 with a profit and 1.3 million passengers transported, its best results since the year 1990.

[4] As a result, Serbian Government decided to restructure the company, rather than calling another tender with a lower starting price.

[6] Overall, calendar year 2008 was very bad for Jat with an annual posted loss of US$80 million,[7] mostly because of high fuel prices and decreased passenger loads during the 2008-09 global financial crisis.

[8] Đilas actually hired him in late 2008, but Vlaisavljević remained at Jat for another 6 months due to the company's ongoing restructuring effort at the time following its failed privatization attempt amidst the 2008-2009 global financial crisis.

[9] In December 2009, he was appointed a Vice President of Serbian Chamber of Commerce' and Industry of Serbia (abbr.

During his work in Serbian Chamber of Commerce, he gained experience that gives a completely new dimension to the development path of each manager.

During the 2018 summer season, passengers were offered regular and charter flights by 39 airlines operating from Belgrade to 96 destinations in 37 countries in Europe, the United States, the Middle and Far East and North Africa.

Under the leadership of Saša Vlaisavljević, AD Belgrade Nikola Tesla Airport has won numerous international, regional and domestic awards for business success: