A domestic ticket, an international departure, and an international arrival or Hajj welcome each use a different building. The metro station sits on the domestic side.

Official Terminal 3 page titles it the international-arrivals terminal (10,500 m²). Local guides also call the outbound international building the glass terminal on the airport boulevard. Match the building to the flight before you park or send a greeter.

In the last ten days of Safar 2024 (30 Aug–8 Sep) the field moved 273,680 passengers on 2,005 flights. 4 September alone was 241 flights and 32,900 passengers.

That count is from Amani-Bani via Tehran Times: 793 domestic arrivals (108,371 people), 788 domestic departures (107,433), and 212 international flights each way (29,256 in, 28,620 out). On those days a 90-minute domestic buffer is not enough.

The public board was still listing domestic departures and arrivals in October 2026. International sectors, especially Turkey and Iraq, were reported suspended in September 2026.

Reconfirm on the airline's own site the week you fly. A Wikipedia destination list is not a reservation.

The official facilities list has restaurants, a Terminal 3 supermarket, and internet access. It does not list a drinking fountain.

Empty the bottle at the X-ray and buy another after screening. Do not budget on a free refill.