Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3545
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 3545 · SAT → SAN
departs 6:15 AM CT · arrives 7:05 AM PT
Forecast issued Thu 10:00 PM ET · 15h after departure
Watch this flight
Other days
Thu 10/1
Today 8%
Mon 10/5 5%
Fri 10/9 6%
Odds over time
Arrive at SAN more than 15 minutes late?
20%
chance · ±0 pts
+7 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
20%
Leave 15+ late
10%
Arrive 1h+ late
4%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at SAN more than 15 minutes late?
Calm-weather odds: 20% · changed +7 pts in 24h
+7 pts
20%
Yes 20%
No 80%
Leave SAT more than 15 minutes late?
Calm-weather odds: 10% · changed −1 pt in 24h
−1 pt
10%
Yes 10%
No 90%
Arrive at SAN more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: 2% · changed +2 pts in 24h
+2 pts
2%
Yes 2%
No 98%
How late will it get to SAN?
On time or early
78%
15–30 min late
13%
30 min–1 hour late
3%
1–2 hours late
3%
Over 2 hours late
1%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
1.9 in of rain, thunderstorms forecast at SAT that day
↑
SAN is prone to delays
↑
Other factors
↓
Early flights usually leave on time
↓
6am departures from SAT are usually not late
Weather at each end
SAT (origin)
Gusts 25 kt Ceiling 540 ft Visibility 1.5 mi Precip 3.40 in
SAN (destination)
Gusts 19 kt Ceiling 500 ft Visibility 4 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.