Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 2819
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Today
G4 2819 · DSM → SFB
departs 4:59 PM CT · arrives 8:49 PM ET
Forecast issued Sat 1:00 AM ET · 17h before departure
Watch this flight
Odds over time
Arrive at SFB more than 15 minutes late?
39%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
39%
Leave 15+ late
28%
Arrive 1h+ late
12%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.8d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at SFB more than 15 minutes late?
Calm-weather odds: 26% · changed +0 pts in 24h
+0 pts
39%
Yes 39%
No 61%
Leave DSM more than 15 minutes late?
Calm-weather odds: 30% · changed +0 pts in 24h
+0 pts
28%
Yes 28%
No 72%
Arrive at SFB more than an hour late?
Calm-weather odds: 7% · changed +1 pt in 24h
+1 pt
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to SFB?
On time or early
60%
15–30 min late
15%
30 min–1 hour late
11%
1–2 hours late
5%
Over 2 hours late
6%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Thunderstorms forecast at SFB that day
↑
This flight has been late 35% of the time recently
↑
Arrivals into SFB at that hour are often late
↓
Mostly benign weather forecast at DSM
↓
Saturdays in October are usually quieter than average
Weather at each end
DSM (origin)
Gusts 16 kt Ceiling none (clear) Visibility 10+ mi Precip none
SFB (destination)
Gusts 16 kt Ceiling 11,000 ft Visibility 10+ mi Precip 0.13 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.