Catania-Fontanarossa Airport — Catania, Italy

Sicily's busiest airport, officially named for the Catania-born composer Vincenzo Bellini, sits practically in the shadow of Mount Etna and carries the code CTA. Its single main terminal processes a mix of domestic Italian routes, European leisure traffic, and heavy seasonal demand from the Sicilian diaspora returning to visit family. Because the active volcano looms just north of the runway, ash plumes from Etna's eruptions have repeatedly forced temporary closures over the years, a quirk unique among Italy's major airports. Low-cost carriers use Catania as a springboard for eastern Sicily, including Taormina and the Baroque towns of the Val di Noto. Passenger numbers have climbed steadily as the island's tourism sector expanded, making Fontanarossa one of southern Italy's most vital transportation links alongside Palermo.