Iran has cancelled flights from Tehran to Baghdad and Muscat as new restrictions on Iranian airlines come into effect, according to Iranian aviation authorities.
Iran’s Civil Aviation Organisation said Baghdad and Muscat airports would no longer accept Iranian flights from midnight on Wednesday.
According to the 24NewsHD TV channel, Iranian authorities are in talks to redirect flights bound for Baghdad to Najaf airport in Iraq.
The organisation said other international flights, including services to Istanbul, would continue according to schedule.
Discussions with Oman were also continuing over the restrictions affecting flights to Muscat.
Iraq has separately ordered the suspension of Iranian flights to Baghdad from Wednesday, according to sources cited by Reuters.
Iraqi authorities are also considering whether Iranian flights could be redirected from Baghdad to Najaf.
The developments come after US Treasury Secretary Scott Bessent said Iranian airlines would face a shutdown of international aviation services from September 23 because of the threat of secondary US sanctions against companies providing services to them.
Bessent said foreign airports and service providers could face US penalties if they continued providing Iranian airlines with services such as fuel, landing facilities and ticket sales.
The US Treasury announced on September 8 that it had imposed sanctions on 36 targets linked to Iran’s aviation sector, saying the measures were aimed at networks supporting the sector.
The latest flight cancellations mark an immediate impact of the growing restrictions on Iranian international air services, while Tehran continues discussions over alternative arrangements for some routes.