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 3886
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
WN 3886 · SJC → MDW
departs 10:55 PM PT · arrives 5:00 AM CT
Forecast issued Fri 10:00 PM ET · 4h before departure
Watch this flight
Other days
Fri 10/2
Today 14%
Fri 10/9 13%
Odds over time
Arrive at MDW more than 15 minutes late?
21%
chance · ±0 pts
+5 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
21%
Leave 15+ late
19%
Arrive 1h+ late
3%
Cancelled
5%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.2d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at MDW more than 15 minutes late?
Calm-weather odds: 18% · changed +5 pts in 24h
+5 pts
21%
Yes 21%
No 79%
Leave SJC more than 15 minutes late?
Calm-weather odds: 21% · changed −1 pt in 24h
−1 pt
19%
Yes 19%
No 81%
Arrive at MDW more than an hour late?
Calm-weather odds: 5% · changed −1 pt in 24h
−1 pt
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +4 pts in 24h
+4 pts
5%
Yes 5%
No 95%
How late will it get to MDW?
On time or early
75%
15–30 min late
12%
30 min–1 hour late
4%
1–2 hours late
2%
Over 2 hours late
<1%
Cancelled
5%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↓
10pm departures from SJC are usually not late
↓
Cloud base down to 700 ft forecast at SJC that day
Weather at each end
SJC (origin)
Gusts 5 kt Ceiling 700 ft Visibility 4 mi Precip none
MDW (destination)
Gusts 15 kt Ceiling 900 ft Visibility 7 mi Precip 0.12 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.