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 3513
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 3513 · SAN → MDW
departs 6:30 AM PT · arrives 12:35 PM CT
Forecast issued Fri 8:00 PM ET · 10h after departure
Watch this flight
Other days
Today
Sat 10/3 7%
Sun 10/4 6%
Mon 10/5 9%
Odds over time
Arrive at MDW more than 15 minutes late?
12%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
12%
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 MDW more than 15 minutes late?
Calm-weather odds: 12% · changed −1 pt in 24h
−1 pt
12%
Yes 12%
No 88%
Leave SAN more than 15 minutes late?
Calm-weather odds: 8% · changed +0 pts in 24h
+0 pts
8%
Yes 8%
No 92%
Arrive at MDW more than an hour late?
Calm-weather odds: 2% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to MDW?
On time or early
87%
15–30 min late
6%
30 min–1 hour late
4%
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
↑
SAN is prone to delays
↓
Early flights usually leave on time
↓
6am departures from SAN are usually not late
Weather at each end
SAN (origin)
Gusts 19 kt Ceiling 300 ft Visibility 2.5 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.