Iranian carriers halted flights to the United Arab Emirates from September 24 after U.S. sanctions that took effect a day earlier pressured the ground handlers, fuel suppliers, insurers and overflight authorities supporting their operations. Treasury Secretary Scott Bessent said 80% to 90% of Iran's international flights had ceased, while Iran Airtour suspended its Tehran-Dubai service, including flights for ticketed passengers. Iran Air and Mahan Air retained limited connections, principally to China and Armenia, although flight-tracking data had also shown Iranian services reaching Thailand and Afghanistan. Turkmenistan denied Iranian aircraft overflight access, forcing at least one Tehran-Dushanbe flight to return. The disruption deepens Operation Economic Outcast, Washington's wider campaign against Iran's aviation, financial and cryptocurrency-related networks, and threatens a Dubai-linked trade and air-freight corridor important for goods, medical equipment and industrial components.