Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

ALLEGIANT · FLIGHT G4 20 SCHEDULED · TYPICAL SCHEDULE

G4 20 · LAS → SCK

departs 1:54 PM PT · arrives 3:17 PM PT
Forecast issued Wed 12:00 AM ET · 65h before departure

Odds over time

Arrive at SCK more than 15 minutes late?
30% chance · ±0 pts +1 pt · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 3.8d Now 2d 1d 12h 6h Departs Lands

How late will it get to SCK?

  1. On time or early
    70%
  2. 15–30 min late
    14%
  3. 30 min–1 hour late
    7%
  4. 1–2 hours late
    6%
  5. Over 2 hours late
    3%
  6. Cancelled
    <1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.