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 3316
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 3316 · STL → HOU
departs 2:10 PM CT · arrives 4:15 PM CT
Forecast issued Fri 9:00 AM ET · 30h before departure
Watch this flight
Odds over time
Arrive at HOU more than 15 minutes late?
19%
chance · ±0 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
22%
Arrive 1h+ late
5%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.7d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 15% · changed −3 pts in 24h
−3 pts
19%
Yes 19%
No 81%
Leave STL more than 15 minutes late?
Calm-weather odds: 18% · changed −1 pt in 24h
−1 pt
22%
Yes 22%
No 78%
Arrive at HOU more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
1%
Yes 1%
No 99%
How late will it get to HOU?
On time or early
80%
15–30 min late
10%
30 min–1 hour late
4%
1–2 hours late
4%
Over 2 hours late
1%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
0.3 in of rain forecast at HOU that day
↑
Later flights pick up delays from earlier in the day
↑
HOU is prone to delays
↓
Mostly benign weather forecast at STL
↓
WN's recent on-time record
Weather at each end
STL (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
HOU (destination)
Gusts 16 kt Ceiling 4,500 ft Visibility 10+ mi Precip 0.26 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.