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 3881
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
WN 3881 · MDW → OKC
departs 9:30 PM CT · arrives 11:35 PM CT
Forecast issued Fri 10:00 PM ET · 0h before departure
Watch this flight
Other days
Fri 10/2
Today 24%
Mon 10/5 19%
Fri 10/9 25%
Odds over time
Arrive at OKC more than 15 minutes late?
30%
chance · ±0 pts
−3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
30%
Leave 15+ late
39%
Arrive 1h+ late
10%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.0d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at OKC more than 15 minutes late?
Calm-weather odds: 30% · changed −3 pts in 24h
−3 pts
30%
Yes 30%
No 70%
Leave MDW more than 15 minutes late?
Calm-weather odds: 39% · changed +0 pts in 24h
+0 pts
39%
Yes 39%
No 61%
Arrive at OKC more than an hour late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 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 OKC?
On time or early
70%
15–30 min late
4%
30 min–1 hour late
16%
1–2 hours late
8%
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
↑
9pm departures from MDW are often late
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↓
Cloud base down to 900 ft forecast at MDW that day
↓
Fridays in October are usually quieter than average
Weather at each end
MDW (origin)
Gusts 15 kt Ceiling 900 ft Visibility 7 mi Precip 0.12 in
OKC (destination)
Gusts 22 kt Ceiling 400 ft Visibility 2.5 mi Precip 0.10 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.