Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALLEGIANT · FLIGHT G4 3721
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
G4 3721 · COU → SFB
departs 5:48 PM CT · arrives 9:15 PM ET
Forecast issued Thu 8:00 PM ET · 47h before departure
Watch this flight
Other days
Sat 10/3
Wed 10/7 19%
Odds over time
Arrive at SFB more than 15 minutes late?
46%
chance · ±4 pts
−4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
46%
Leave 15+ late
37%
Arrive 1h+ late
19%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
4.9d
Now
1d
12h
6h
Departs
Lands
Arrive at SFB more than 15 minutes late?
Calm-weather odds: 33% · changed −4 pts in 24h
−4 pts
46%
Yes 46%
No 54%
Leave COU more than 15 minutes late?
Calm-weather odds: 35% · changed −1 pt in 24h
−1 pt
37%
Yes 37%
No 63%
Arrive at SFB more than an hour late?
Calm-weather odds: 14% · changed −2 pts in 24h
−2 pts
19%
Yes 19%
No 81%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
1%
Yes 1%
No 99%
How late will it get to SFB?
On time or early
54%
15–30 min late
17%
30 min–1 hour late
10%
1–2 hours late
10%
Over 2 hours late
8%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 31% of the time recently
↑
Arrivals into SFB at that hour are often late
↑
Mostly benign weather forecast at SFB
↓
Mostly benign weather forecast at COU
↓
Saturdays in October are usually quieter than average
Weather at each end
COU (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
SFB (destination)
Gusts 16 kt Ceiling 9,000 ft Visibility 10+ mi Precip 0.18 in
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.