Terminal 1
The domestic terminal, built on the site of the original Santacruz airport. By the airport’s own airline directory, Alliance Air and Star Air fly from here exclusively; IndiGo, Akasa Air and SpiceJet also use T1, but only for some of their domestic flights — the other half of each of those three airlines’ schedules leaves from T2, so the terminal is decided by flight number, not by carrier.
DigiYatra facial-recognition check-in is not available here yet — the airport’s own DigiYatra page limits it to domestic departures from Terminal 2, Gate 2.
The nearest suburban railway station is Vile Parle (East); BEST bus route 312 connects the terminal to both Vile Parle (East) and Andheri (East) stations. Mumbai Metro Line 3 also has its own “CSMIA Airport T1” station.
Terminal 2 is a landside-only transfer — there is no airside walk between the two buildings. The free Inter-Terminal Coach runs 24/7 with a departure roughly every 25 minutes; the airport’s own transit guide recommends allowing 2 to 3 hours for a domestic-to-domestic connection that changes terminal, and 3 to 4 hours if either leg is international.
Wheelchair support has its own desk at the kerbside outside Departure Gate 2, and help phones are posted across arrivals, the security hold area and departures. Book the wheelchair through your airline in advance; paid private mobility assistance runs on a separate T1 phone line.