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 1879
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 1879 · VPS → STL
departs 4:35 PM CT · arrives 6:25 PM CT
Forecast issued Fri 4:00 PM ET · 26h before departure
Watch this flight
Odds over time
Arrive at STL more than 15 minutes late?
23%
chance · ±1 pts
+3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
23%
Leave 15+ late
27%
Arrive 1h+ late
10%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.8d
2d
Now
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 11% · changed +3 pts in 24h
+3 pts
23%
Yes 23%
No 77%
Leave VPS more than 15 minutes late?
Calm-weather odds: 14% · changed +5 pts in 24h
+5 pts
27%
Yes 27%
No 73%
Arrive at STL more than an hour late?
Calm-weather odds: 4% · changed +4 pts in 24h
+4 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
2%
Yes 2%
No 98%
How late will it get to STL?
On time or early
75%
15–30 min late
8%
30 min–1 hour late
5%
1–2 hours late
4%
Over 2 hours late
5%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 900 ft, 0.9 in of rain, thunderstorms forecast at VPS that day
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into STL at that hour are often late
↓
VPS usually runs smoothly
↓
Saturdays in October are usually quieter than average
Weather at each end
VPS (origin)
Gusts 17 kt Ceiling 867 ft Visibility 7 mi Precip 1.34 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.