Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast City Airport to Ljubljana as you normally would.
For a flight from Belfast City to Ljubljana, you will be flying into Joze Pucnik. Ljubljana Joze Pucnik (LJU) is just 11.7 mi from the center of the city. Joze Pucnik is the only Ljubljana airport and it handles 0 inbound flights from Belfast City per day. 0 airlines have flights to Ljubljana Joze Pucnik from Belfast City on a regular basis.