Hex'Air is a small French regional airline operating scheduled and charter services primarily in central and southern France. The carrier focuses on connecting smaller regional cities and towns that are underserved by larger carriers, providing vital air links for business and leisure travelers. The airline operates under IATA code UD and ICAO code HER, with the radio callsign HEX AIRLINE. Hex'Air has carved out a niche in the French domestic regional market, often serving routes that larger airlines find commercially unviable. As a regional operator, Hex'Air plays an important role in maintaining air connectivity for communities in less-accessible parts of France, working in some cases under public service obligation (PSO) contracts with French regional authorities.