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 1230
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
WN 1230 · MDW → COS
departs 12:30 PM CT · arrives 2:00 PM MT
Forecast issued Fri 10:00 PM ET · 8h after departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 15%
Fri 10/9 18%
Odds over time
Arrive at COS more than 15 minutes late?
28%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
28%
Leave 15+ late
20%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.6d
2d
1d
12h
6h
Departs
Lands
Arrive at COS more than 15 minutes late?
Calm-weather odds: 28% · changed +2 pts in 24h
+2 pts
28%
Yes 28%
No 72%
Leave MDW more than 15 minutes late?
Calm-weather odds: 20% · changed +0 pts in 24h
+0 pts
20%
Yes 20%
No 80%
Arrive at COS more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to COS?
On time or early
72%
15–30 min late
16%
30 min–1 hour late
5%
1–2 hours late
5%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
WN's recent on-time record
↑
This flight has been late 26% of the time recently
↑
Gusts to 27 kt, cloud base down to 200 ft, visibility down to 0.13 mi forecast at COS that day
↓
MDW is quiet at that time
↓
MDW usually runs smoothly
Weather at each end
MDW (origin)
Gusts 15 kt Ceiling 900 ft Visibility 7 mi Precip 0.12 in
COS (destination)
Gusts 26 kt Ceiling 200 ft Visibility 0.13 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.