Swiss-based Germnia Flug has upgraded its upcoming service from Zurich to Niš from summer seasonal to year-round operations. The airline will continue to maintain flights on the route twice per week during the winter season, although services will be down to one weekly rotation during selected periods when demand is deemed to be its weakest. Germania Flug will introduce flights between the two cities on June 23. It will compete directly against Swiss International Air Lines, which starts seasonal flights to Niš this Sunday. The 2017/18 winter season begins October 29.