Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2901
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 2901 · MDW → STL
departs 11:00 AM CT · arrives 12:10 PM CT
Forecast issued Fri 1:00 AM ET · 11h before departure
Watch this flight
Other days
Today
Sun 10/4 8%
Mon 10/5 13%
Tue 10/6 8%
Wed 10/7 9%
Odds over time
Arrive at STL more than 15 minutes late?
20%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
20%
Leave 15+ late
19%
Arrive 1h+ late
4%
Cancelled
3%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.6d
2d
1d
Now
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 13% · changed +1 pt in 24h
+1 pt
20%
Yes 20%
No 80%
Leave MDW more than 15 minutes late?
Calm-weather odds: 14% · changed +3 pts in 24h
+3 pts
19%
Yes 19%
No 81%
Arrive at STL more than an hour late?
Calm-weather odds: 2% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +3 pts in 24h
+3 pts
3%
Yes 3%
No 97%
How late will it get to STL?
On time or early
77%
15–30 min late
12%
30 min–1 hour late
3%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 800 ft, 0.3 in of rain forecast at STL that day
↑
11am departures from MDW are often late
↑
WN's recent on-time record
↓
STL usually runs smoothly
↓
Arrivals into STL at that hour are usually not late
Weather at each end
MDW (origin)
Gusts 15 kt Ceiling 4,500 ft Visibility 9.2 mi Precip 0.06 in
STL (destination)
Gusts 17 kt Ceiling 780 ft Visibility 6 mi Precip 0.20 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.