As in the case of the development of many airports, Portorož Airport had a humble beginning. In 1962, ground preparations are initially made for the creation of a sports airport with a grass runway. However, in response to the LZJ decision to allow the third Adriatic Parachute Cup competitions to take place in Portorož the following year, the plans for the grass runway are ultimately changed and the runway is extended to . On 27 September 1962, a flight inspection team examine Portorož Airport and recommend the issuance of a six-month temporary registration, which would classify it as a secondary sports airport, permitting the landing of aircraft weighing up to . The following year, on 3 April 1963, Aero club Piran is formed. Later in 1963, the third Adriatic Parachute Cup competitions are held.