Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

ALLEGIANT · FLIGHT G4 3723 SCHEDULED · TYPICAL SCHEDULE

G4 3723 · LSE → SFB

departs 7:37 PM CT · arrives 11:37 PM ET
Forecast issued Thu 10:00 PM ET · 1h after departure

Odds over time

Arrive at SFB more than 15 minutes late?
28% chance · ±0 pts −11 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 2.8d 2d 1d 12h 6h Departs Now Lands

How late will it get to SFB?

  1. On time or early
    72%
  2. 15–30 min late
    2%
  3. 30 min–1 hour late
    12%
  4. 1–2 hours late
    8%
  5. Over 2 hours late
    6%
  6. Cancelled
    <1%

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