From 23 September, US Treasury Secretary Scott Bessent told the market, any foreign airport, fuel farm, handler or ticket seller that still services an Iranian airline risks being "knocked out of the dollar system”. He said the carriers would be “shut down around the world”. That is a policy objective. What can be verified, airport by airport, is that the threat landed on the ground before the legal clock finished ticking. Azerbaijan Airlines said Iranian-carrier flights into Azerbaijan were suspended from 22 September because of the new aviation package. Iran’s Civil Aviation Organization, via Tasnim, said Baghdad and Muscat would stop taking Iranian services from midnight and that Tehran was talking about sending Baghdad traffic to Najaf. In fact as per sources, the government had ordered a Baghdad halt from Wednesday midnight and was discussing the Najaf shift. Iran Air, the same day, said it had no official Turkish, Azerbaijani or Iraqi instruction to stop Istanbul, Baku or Najaf and would keep flying until one arrived. Mahan had already dropped Istanbul and Ankara at Turkey’s request and had cut Muscat earlier. Georgia had already closed its sector to Iranian aircraft. Live boards will move faster than communiques.
Follow one planned rotation and the aircraft is the least interesting object. A passenger buys a Tehran-Baghdad seat through a GDS or an Iranian website that still settles in a currency a bank will touch. Overflight and a landing slot exist on paper. Then the trip meets the commercial issue of the fueler who invoices in dollars or through a trader who does and a handler who needs insurance, a cleaner and a caterer on the same ramp contract, a station that posts airport charges, a hotel that takes a crew card, a line-maintenance shop that will not sign a CRS if the next spare is a designated part. OFAC’s 8 September action had already listed 27 Iranian airlines and related aviation firms. General License DD’s wind-down ran to 23 September 00:01 Eastern. After that, the risk sits with the foreign company, not with the Iranian certificate. An aircraft can be airworthy, crewed and legally filed and still become a monument on a remote stand if the bowser does not roll.
Najaf is the test of the workaround. A pilgrimage airport can look like a softer target than Baghdad International. It still needs fuel, a handler and a payment path. If those firms calculate that one Iranian turn is not worth a correspondent-bank letter, the diversion becomes a press headline. Istanbul’s remaining Iranian frequencies will be watched as the last big commercial door. Delhi, Dubai, Chinese cities and Phuket are on Al Jazeera’s exposure list, none of that is proof they closed today. Passengers already holding a confirmed booking and a fuel release.
Washington cannot switch off a foreign FIR. It can make the truck expensive. Until fuelers, handlers and ticket switches publish who they will still touch, Iranian international flying will shrink city by city, not all at once.