Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

QANTAS · FLIGHT QF 21 SCHEDULED · SCHEDULED TIME UNKNOWN
Yesterday

QF 21 · MEL → DFW

departs 4:30 AM AEDT · arrives 3:22 AM CT
Your aircraft is VHZNC (B789).
Forecast issued Wed 10:00 AM ET · 22h after departure

Odds over time

Arrive at DFW more than 15 minutes late?
20% chance · ±0 pts +4 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 18h 12h 6h Departs Lands