Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

ALLEGIANT · FLIGHT G4 1228 SCHEDULED · TYPICAL ODDS

G4 1228 · HSV → SFB

departs 3:27 PM CT · arrives 6:17 PM ET
Forecast issued Sun 4:00 PM ET · 120h before departure

Typical odds Too early for a weather forecast — these are typical odds for this flight on a Friday in October, from the weather this date has had in past years (the range shows how much they varied). They’ll switch to forecast-based odds about 3 days before departure.

Odds over time

Arrive at SFB more than 15 minutes late?
45% chance · ±14 pts +0 pts · 24h
HOW SURE WE ARE Low. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 6.7d Now 2d 1d 12h 6h Departs Lands

How late will it get to SFB?

  1. On time or early
    45%
  2. 15–30 min late
    11%
  3. 30 min–1 hour late
    13%
  4. 1–2 hours late
    9%
  5. Over 2 hours late
    4%
  6. Cancelled
    18%

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