Mahan Air is Iran's largest private airline, founded in 1991 and headquartered in Tehran. The carrier operates an extensive network of domestic routes within Iran as well as international services to destinations across the Middle East, Asia, and Europe. The airline has been subject to significant international scrutiny and sanctions, particularly from the United States, European Union, and other governments, over allegations of transporting weapons and personnel for the Islamic Revolutionary Guard Corps and Hezbollah. Several European countries have banned Mahan Air from their airspace. Despite sanctions, Mahan Air has managed to maintain and expand its fleet through various means, operating a mixed fleet of Western and Russian-built aircraft. It remains a dominant player in the Iranian aviation market, serving millions of passengers annually.