Iran Air Tours, also known as Iran Airtour, was established in 1973 as a subsidiary of Iran Air, the publicly owned flagship carrier of the Islamic Republic of Iran. The carrier was privatised in 2011, due to amendments in Article 44 of the Iranian Constitution regarding the divestment of state-owned assets. Iran Air Tours maintained its subisidiary status with parent company Iran Air. From its primary base at Tehran Mehrabad Airport, Iran Air Tours operates scheduled domestic service and regional service in the Middle East, as well as charter services to international destinations.