Departure month: any April 2021 May 2021 June 2021 July 2021 August 2021 September 2021 October 2021 November 2021 December 2021 January 2022 February 2022 March 2022 Sorted by: day of search price departure city Paris - Belgrade outbound: 22/06/2021 1 stop (17h20m)KLM return: 03/07/2021 1 stop (5h15m)KLM $217 Verify Brussels - Belgrade outbound: 07/07/2021 1 stop (11h35m)Vueling return: 12/07/2021 1 stop (7h20m)Vueling $340 Verify Basel - Belgrade outbound: 30/04/2021 direct (1h50m)easyJet return: 28/05/2021 direct (1h55m)easyJet $104 Verify Frankfurt - Belgrade outbound: 07/05/2021 direct (1h50m)Lufthansa return: 30/05/2021 direct (1h55m)Lufthansa $247 Verify