The airport has a catchment area of approximately 4 million people, stretching beyond Friuli-Venezia Giulia into neighboring Slovenia, Austria and Croatia.The first official documents citing the airfield of Ronchi dei Legionari date back to 30 November 1935, when the 4th Fighter Wing of the Royal Italian Air Force was based here.In 2007, the airport was dedicated to Pietro Savorgnan di Brazzà, a 19th century explorer with Friulian origins.The following airlines operate regular scheduled and charter flights to and from Trieste: The airport is connected to the national railway and highway networks thanks to the Intermodal Transit Hub completed in March 2018, serving as an air-road-rail interchange.At the interchange near Palmanova, the A4 branches off to Autostrada A23 linking to Austria's Süd Autobahn A2 via Udine and Tarvisio.