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 4198
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 4198 · TPA → STL
departs 4:00 PM ET · arrives 5:25 PM CT
Forecast issued Fri 8:00 PM ET · 20h before departure
Watch this flight
Odds over time
Arrive at STL more than 15 minutes late?
34%
chance · ±4 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
34%
Leave 15+ late
30%
Arrive 1h+ late
10%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.8d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 15% · changed +0 pts in 24h
+0 pts
34%
Yes 34%
No 66%
Leave TPA more than 15 minutes late?
Calm-weather odds: 19% · changed +2 pts in 24h
+2 pts
30%
Yes 30%
No 70%
Arrive at STL more than an hour late?
Calm-weather odds: 4% · changed −2 pts in 24h
−2 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to STL?
On time or early
65%
15–30 min late
20%
30 min–1 hour late
4%
1–2 hours late
7%
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
↑
0.3 in of rain forecast at TPA that day
↑
4pm departures from TPA are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at STL
↓
Saturdays in October are usually quieter than average
Weather at each end
TPA (origin)
Gusts 13 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.29 in
STL (destination)
Gusts 10 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.