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.
SKYWEST · FLIGHT OO 4819
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
OO 4819 · DFW → SGU
departs 8:40 AM CT · arrives 10:39 AM MT
Forecast issued Fri 11:00 AM ET · 47h before departure
Watch this flight
Other days
Sun 10/4
Mon 10/5 14%
Thu 10/8 12%
Odds over time
Arrive at SGU more than 15 minutes late?
19%
chance · ±4 pts
+3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
20%
Arrive 1h+ late
7%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.5d
Now
1d
12h
6h
Departs
Lands
Arrive at SGU more than 15 minutes late?
Calm-weather odds: 14% · changed +3 pts in 24h
+3 pts
19%
Yes 19%
No 81%
Leave DFW more than 15 minutes late?
Calm-weather odds: 13% · changed +2 pts in 24h
+2 pts
20%
Yes 20%
No 80%
Arrive at SGU more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SGU?
On time or early
80%
15–30 min late
3%
30 min–1 hour late
8%
1–2 hours late
4%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 700 ft forecast at DFW that day
↑
This flight has been late 26% of the time recently
↑
OO's recent on-time record
↓
Mostly benign weather forecast at SGU
↓
Early flights usually leave on time
Weather at each end
DFW (origin)
Gusts 21 kt Ceiling 700 ft Visibility 9 mi Precip 0.08 in
SGU (destination)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
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.