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 2900
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
WN 2900 · MDW → STL
departs 7:50 AM CT · arrives 9:10 AM CT
Forecast issued Fri 10:00 PM ET · 13h after departure
Watch this flight
Other days
Fri 10/2
Today 14%
Sun 10/4 4%
Mon 10/5 4%
Thu 10/8 13%
Fri 10/9 5%
Odds over time
Arrive at STL more than 15 minutes late?
7%
chance · ±0 pts
−14 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
7%
Leave 15+ late
8%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.5d
2d
1d
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 7% · changed −14 pts in 24h
−14 pts
7%
Yes 7%
No 93%
Leave MDW more than 15 minutes late?
Calm-weather odds: 8% · changed −13 pts in 24h
−13 pts
8%
Yes 8%
No 92%
Arrive at STL more than an hour late?
Calm-weather odds: 2% · changed −2 pts in 24h
−2 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to STL?
On time or early
92%
15–30 min late
4%
30 min–1 hour late
1%
1–2 hours late
1%
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
↑
Cloud base down to 600 ft forecast at STL that day
↓
Early flights usually leave on time
↓
Arrivals into STL at that hour are usually not late
Weather at each end
MDW (origin)
Gusts 15 kt Ceiling 900 ft Visibility 7 mi Precip 0.12 in
STL (destination)
Gusts 20 kt Ceiling 600 ft Visibility 9 mi Precip 0.01 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.