Air France has published its 2019/2020 winter schedule which will see it grow its operations to both Ljubljana and Belgrade. Services between the French and Slovenian capitals will more than double, with the carrier to maintain thirteen weekly flights, up from six last winter season. Through its regional subsidiary Air France HOP!, the airline will maintain two daily flights, with the exception on Saturdays. The French carrier will compete directly against Adria Airways on the route, which plans to run daily flights between the two next winter, up from five weekly services during the 2018/19 season. Although the two airlines previously codeshared on each others flights, this arrangement is no longer in place.

Air France has upgraded its seasonal flights between Paris and Belgrade, launched last month, to a year-round service. Flights will continue to operate daily during the 2019/2020 winter season. "In addition, with our partner Air Serbia, Air France will offer a total of nineteen weekly flights between Paris and Belgrade (seven flights operated by Air France and twelve codeshare flights operated by Air Serbia)", the carrier said in a statement. It added, "We are very happy to be back with a daily service. The Serbian economy is improving and is expected to grow by 4% per year in the coming period, while there is an increasing number of French investments, an example being VINCI. Therefore, Air France wanted to be part of this growth and development, but also support Serbian tourism".

Air France and Air Serbia recently expanded the scope of their cooperation to include new codeshare destinations, with the "AF" designator code and flight numbers now appearing on Air Serbia's services from Belgrade to Larnaca, Nice (as of June 6), Podgorica, Sarajevo, Skopje, Thessaloniki, Tirana and Tivat. In return, Air Serbia now codeshares on Air France operated flights from Paris to Barcelona, Dublin, Lyon, Marseille, Nantes, Nice and Palma de Mallorca. "This traffic also helps support the route. We have good potential to further develop our relationship. We expect that 25% of our traffic on this route will come from long haul flights, as there is a large Serbian community in North America. We expect 15% from the rest of Europe, and of course the 60% left will be the traffic between France and Serbia", the carrier noted.

Air France's only other year-round destination in the former Yugoslavia, Zagreb, will continue to operate once per day through its HOP! subsidiary. The carrier maintains a codeshare partnership with Croatia Airlines on the route.