Iran airlines cancel international flights as US sanctions take effect

Major Iranian airlines cancelled international routes as sweeping new US sanctions targeting the country's aviation industry took effect on Wednesday, 23 September 2026. The restrictions, spearheaded by the United States to isolate Tehran economically following months of war, threaten secondary penalties against any foreign nation or aviation service provider that refuels, services, or sells tickets for Iranian aircraft. While regional routes crumbled under the threat of exclusion from the American dollar-based financial system, certain long-haul and regional flights persisted, exposing deep divisions between Washington and defiant international partners.

The punitive measures were outlined by The Straits Times, noting that Treasury Secretary Scott Bessent declared an "economic D-Day" aimed at crippling Iran's aviation sector. The Treasury Department's actions arrived following an earlier blacklist of 36 targets, including 27 Iranian airlines accused of transporting weapons and military personnel through foreign intermediaries. As reported by Jen, a Tehran travel agency confirmed that ticket sales had stopped entirely due to market volatility. Major suspensions hit routes to Baghdad, Muscat, Doha, Tbilisi, and Baku, throwing travel plans into disarray for business passengers and religious pilgrims.

Media additions

Disruption was far from uniform across the region. According to AeroTime, Iraq's civil aviation authorities and airport officials in Baghdad and Muscat ceased accepting Iranian flights, though Tehran authorities pursued talks to reroute pilgrimage traffic through Najaf. Meanwhile, Ua reported that smaller carriers like Varesh maintained limited connections to Turkey and Armenia, even as major flag carriers faced mounting pressure from local authorities abroad. Turkey notably requested the suspension of Mahan Air flights to its territory, while Georgia and Oman enforced airspace and landing bans.

Escalating the geopolitical stakes, Il Sole 24 ORE reported a stark warning from Mohsen Rezaei, Secretary of Iran’s Supreme National Security Council. Rezaei stated on state television that if neighbouring countries cooperated with Washington by blocking Iranian flights, Tehran would ensure those nations' airports could no longer operate. Despite this aggressive posture, physical enforcement of the US ban remained patchy as foreign governments weighed compliance against bilateral ties.

Defying the embargo, several long-haul services touched down abroad. Tracking data from Flightradar24, cited by Minute Mirror and One Mile at a Time, confirmed that a Mahan Air flight successfully landed at Guangzhou Baiyun International Airport in China, alongside a separate arrival in Phuket, Thailand. Beijing vocally rejected the US measures, labelling them unilateral and illegal. Observers noted that Guangzhou's airport website conspicuously omitted the arriving flight from its public schedule, suggesting quiet coordination to circumvent American scrutiny.

The aviation crisis compounds long-standing structural decay within Iran's commercial fleet. As detailed by Simple Flying, decades of Western restrictions have left Iran with one of the oldest operating fleets globally. Fewer than 200 of the nation's roughly 330 registered aircraft were operational prior to the latest measures, constrained by severe parts shortages. Transshipments of Western-built aircraft continue via opaque channels, including the recent clandestine transfer of five former Singapore Airlines Boeing 777-200ERs via Cambodia with transponders disabled over Afghanistan.

Stranded passengers and travel agencies across the Middle East are actively seeking alternative land routes, which demand significantly extended travel times for cross-border journeys. The connectivity crisis threatens to choke commercial and cultural movement indefinitely.

What to Watch Next

• Monitor bilateral negotiations between Tehran and regional aviation authorities regarding potential rerouting of flights through alternative airports like Najaf.
• Observe whether the United States initiates secondary financial penalties against aviation service providers in nations that accommodated flights from carriers like Mahan Air on Wednesday, 23 September 2026.
• Track the operational status of remaining international routes to China and Southeast Asia to determine if foreign refueling and ground services remain accessible.