Oman’s SalamAir resumed direct flights to Tehran on Sunday after months of suspension, becoming the second foreign carrier to return to Iran in days, in a fresh sign that Washington’s push to isolate Iranian aviation is failing to hold.

According to Imam Khomeini International Airport, SalamAir flight arrived at 11:30 a.m. on Sunday and departed for Muscat at 12:30 p.m. with outbound passengers.

The carrier will operate two weekly flights on the Muscat–Tehran–Muscat route, on Sundays and Fridays.

The resumption follows the return of Iraq’s Al-Iraqiya airline in recent days, making SalamAir the second foreign carrier to restore service to Iran after the 40-day US-Israeli aggression.

The moves mark a modest but symbolic reopening of Iran’s civil aviation links after months of regional airspace restrictions and security disruptions.

The renewed flights come despite explicit threats from US Treasury Secretary Scott Bessent, who warned in September that “on September 23rd, all the Iranian airlines will be shut down around the world.”

First international flight lands at Tehran airport after suspension during 40-day war

Iran announces the arrival of the first international flight to Tehran since the end of the US-Israeli 40-day war.

Bessent told CNBC that foreign airports, fuel suppliers and ticket sellers dealing with Iranian carriers would face exclusion from the US dollar system, as broad secondary sanctions aimed at isolating Tehran’s civil aviation network.

The return of SalamAir and Al-Iraqiya suggests that regional carriers are testing the limits of that campaign, weighing commercial demand against the risk of US financial penalties.

Tehran has consistently rejected the legality of unilateral US sanctions and has worked to keep trade and transport corridors open through alternative networks.