Most of the fleet of Iranian airlines today consist of old Boeings and used or leased Airbus and regional jets such as British Aerospace 146 and ATR 72 and Fokker 100.
[1] Economic sanctions from the United States prevents Iran from purchasing most new western made aircraft to update its rapidly aging fleet.
[citation needed] In 2021, Iranian media reported than 50% of Iran’s fleet is grounded because of lack of spare parts and other technical problems.
[9][10] This, in addition to more planned orders of 100 medium-range planes to Japan's Mitsubishi, Brazil's Embraer and Canada's Bombardier.
[11][12] Iran plans to buy 400 passenger planes by 2025 worth some $20 billion, if US sanctions are lifted.