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.
SOUTHWEST · FLIGHT WN 2126
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
WN 2126 · ONT → LAS
departs 3:00 PM PT · arrives 4:05 PM PT
Forecast issued Thu 10:00 PM ET · 44h before departure
Watch this flight
Odds over time
Arrive at LAS more than 15 minutes late?
18%
chance · ±2 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
18%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.8d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 13% · changed −1 pt in 24h
−1 pt
18%
Yes 18%
No 82%
Leave ONT more than 15 minutes late?
Calm-weather odds: 14% · changed +0 pts in 24h
+0 pts
18%
Yes 18%
No 82%
Arrive at LAS more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
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
82%
15–30 min late
8%
30 min–1 hour late
5%
1–2 hours late
2%
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
↑
LAS is prone to delays
↑
Later flights pick up delays from earlier in the day
↑
Other factors
↓
Mostly benign weather forecast at LAS
↓
Saturdays in October are usually quieter than average
Weather at each end
ONT (origin)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
LAS (destination)
Gusts 11 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.