United States Treasury Secretary Scott Bessent has warned that Iranian airlines could be effectively shut out of international operations from this week, as Washington threatens foreign companies with secondary sanctions if they continue servicing the Islamic republic's carriers. "All the Iranian airlines will be shut down around the world," Bessent told CNBC in an interview as the US-Iran war nears the seven-month mark. Bessent's threat went beyond the airlines themselves but also targeted airports, ticketing companies, fuel suppliers, and other support businesses that help air carriers operate abroad.