Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 4179
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Yesterday
OO 4179 · SNA → LAS
departs 7:59 PM PT · arrives 9:17 PM PT
Forecast issued Thu 10:00 PM ET · 1h before departure
Watch this flight
Other days
Thu 10/1
Today 17%
Sat 10/3 11%
Sun 10/4 18%
Mon 10/5 13%
Tue 10/6 6%
Wed 10/7 7%
Odds over time
Arrive at LAS more than 15 minutes late?
20%
chance · ±3 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
20%
Leave 15+ late
34%
Arrive 1h+ late
8%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 22% · changed −2 pts in 24h
−2 pts
20%
Yes 20%
No 80%
Leave SNA more than 15 minutes late?
Calm-weather odds: 31% · changed −1 pt in 24h
−1 pt
34%
Yes 34%
No 66%
Arrive at LAS more than an hour late?
Calm-weather odds: 8% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LAS?
On time or early
79%
15–30 min late
6%
30 min–1 hour late
7%
1–2 hours late
5%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
OO's recent on-time record
↑
Arrivals into LAS at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at LAS
↓
This flight has been late 18% of the time recently
Weather at each end
SNA (origin)
Gusts 9 kt Ceiling 700 ft Visibility 7 mi Precip none
LAS (destination)
Gusts 7 kt Ceiling none (clear) Visibility 7 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.