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.

ALLEGIANT · FLIGHT G4 8017 IN THE AIR (OFF 2:35 PM PT, ETA 3:21 PM PT) · SCHEDULED TIME UNKNOWN
Today

G4 8017 · RIV → LAS

took off 2:35 PM PT · expected to land 3:21 PM PT (scheduled time unknown)
Forecast issued Tue 4:00 PM ET · 2h before departure

Odds over time

Arrive at LAS more than 15 minutes late?
66% chance · ±2 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 25% 50% 75% 100% 4h Now Departs Lands