The Croatian government has renewed a public service obligation (PSO) contract with Croatia Airlines (OU, Zagreb Franjo Tuđman) to operate a 3x weekly service between Zagreb Franjo Tuđman and Mostar. The Ministry of Sea, Transport, and Infrastructure allocated a total of EUR1.75 million euros (USD2.07 million) for the route in 2026, with EUR950,000 (USD1.13 million) dedicated to financing the PSO route. That marks an increase of EUR50,000 (USD59,000) compared to 2025. The remaining EUR800,000 (USD948,000) will be directed towards improving air safety, security, and infrastructure at the airport. The subsidy additionally makes provisions for a route between Belgrade Nikola Tesla and Mostar, though frequencies are yet to be specified. Using DHC-8-Q400s, Croatia Airlines transported a total of 21,915 passengers between Zagreb and Mostar across 2024 and 2025.