**Recent US sanctions targeting Iranian airlines and secondary penalties for foreign service providers have sharply curtailed Iran's international flights, prompting neighboring countries including the UAE, Azerbaijan, Georgia, Oman, and Iraq to suspend Iranian carriers.** On September 29, Iranian authorities briefly closed the country's airspace for roughly five hours amid these pressures and broader US-Iran tensions before reopening it. Iran’s Supreme National Security Council has rejected military retaliation reports while pursuing negotiations to lift the restrictions and reserving non-military options. Ongoing EASA advisories against operations in the Tehran FIR, combined with the fragile post-ceasefire environment and risks near the Strait of Hormuz, continue to shape trader assessments of any sustained full closure.