Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1203
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Today
G4 1203 · PSM → SFB
departs 7:49 PM ET · arrives 10:51 PM ET
Forecast issued Sun 9:00 AM ET · 11h before departure
Watch this flight
Odds over time
Arrive at SFB more than 15 minutes late?
35%
chance · ±0 pts
−4 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
35%
Leave 15+ late
39%
Arrive 1h+ late
17%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
5.9d
2d
1d
Now
6h
Departs
Lands
Arrive at SFB more than 15 minutes late?
Calm-weather odds: 33% · changed −4 pts in 24h
−4 pts
35%
Yes 35%
No 65%
Leave PSM more than 15 minutes late?
Calm-weather odds: 33% · changed +2 pts in 24h
+2 pts
39%
Yes 39%
No 61%
Arrive at SFB more than an hour late?
Calm-weather odds: 13% · changed +1 pt in 24h
+1 pt
17%
Yes 17%
No 83%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to SFB?
On time or early
64%
15–30 min late
5%
30 min–1 hour late
13%
1–2 hours late
7%
Over 2 hours late
9%
Cancelled
1%
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
↑
G4's recent on-time record
↓
Sundays in October are usually quieter than average
↓
PSM is quiet at that time
Weather at each end
PSM (origin)
Gusts 10 kt Ceiling 4,500 ft Visibility 10+ mi Precip none
SFB (destination)
Gusts 10 kt Ceiling 9,000 ft Visibility 7 mi Precip 0.30 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.