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 2101
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Yesterday
G4 2101 · DSM → VPS
departs 2:20 PM CT · arrives 4:41 PM CT
Forecast issued Sat 10:00 PM ET · 7h after departure
Watch this flight
Odds over time
Arrive at VPS more than 15 minutes late?
19%
chance · ±0 pts
−9 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
19%
Leave 15+ late
18%
Arrive 1h+ late
6%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.7d
2d
1d
12h
6h
Departs
Lands
Arrive at VPS more than 15 minutes late?
Calm-weather odds: 19% · changed −9 pts in 24h
−9 pts
19%
Yes 19%
No 81%
Leave DSM more than 15 minutes late?
Calm-weather odds: 18% · changed −2 pts in 24h
−2 pts
18%
Yes 18%
No 82%
Arrive at VPS more than an hour late?
Calm-weather odds: 6% · changed −2 pts in 24h
−2 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: 2% · changed −2 pts in 24h
−2 pts
2%
Yes 2%
No 98%
How late will it get to VPS?
On time or early
80%
15–30 min late
6%
30 min–1 hour late
7%
1–2 hours late
2%
Over 2 hours late
4%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 500 ft, 0.6 in of rain forecast at VPS that day
↑
G4's recent on-time record
↑
Other factors
↓
VPS usually runs smoothly
↓
Mostly benign weather forecast at DSM
Weather at each end
DSM (origin)
Gusts 22 kt Ceiling none (clear) Visibility 10+ mi Precip none
VPS (destination)
Gusts 17 kt Ceiling 500 ft Visibility 9 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.