Live tracking not available yet
CX21 has a schedule in our database but isn't on the airport board right now. Live position data typically appears within a few hours of departure.
Flight Status
Scheduled
Route Info
SYD
Sydney Kingsford Smith International Airport
Sydney (Mascot)
Scheduled 2:10 PM
MEL
Melbourne Airport
Melbourne
Scheduled 3:40 PM
1h 30m flight time
Mon
Operated by Cathay Pacific
Recent Flights
No flight history yet
History builds as this flight gets tracked
Schedule
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Schedule valid
Mar 16 —
Mar 23, 2026