Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3146
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 3146 · ONT → DEN
departs 12:50 PM PT · arrives 4:05 PM MT
Forecast issued Tue 11:00 PM ET · 41h before departure
Watch this flight
Other days
Today 56%
Thu 10/1
Fri 10/2 25%
Mon 10/5 21%
Tue 10/6 19%
Odds over time
Arrive at DEN more than 15 minutes late?
28%
chance · ±1 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
26%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 18% · changed −2 pts in 24h
−2 pts
28%
Yes 28%
No 72%
Leave ONT more than 15 minutes late?
Calm-weather odds: 22% · changed −4 pts in 24h
−4 pts
26%
Yes 26%
No 74%
Arrive at DEN more than an hour late?
Calm-weather odds: 3% · changed −4 pts in 24h
−4 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
71%
15–30 min late
16%
30 min–1 hour late
6%
1–2 hours late
3%
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
↑
Arrivals into DEN at that hour are often late
↑
This flight has been late 44% of the time recently
↑
WN's recent on-time record
↓
Thursdays in October are usually quieter than average
↓
Mostly benign weather forecast at DEN
Weather at each end
ONT (origin)
Gusts 15 kt Ceiling 1,100 ft Visibility 4 mi Precip none
DEN (destination)
Gusts 20 kt Ceiling 7,000 ft Visibility 8 mi Precip 0.16 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.