Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3547
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 3547 · SAN → SMF
departs 1:20 PM PT · arrives 3:00 PM PT
Forecast issued Fri 4:00 PM ET · 24h before departure
Watch this flight
Other days
Today 39%
Sat 10/3
Sun 10/4 41%
Mon 10/5 30%
Odds over time
Arrive at SMF more than 15 minutes late?
21%
chance · ±1 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
21%
Leave 15+ late
27%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.8d
2d
Now
12h
6h
Departs
Lands
Arrive at SMF more than 15 minutes late?
Calm-weather odds: 18% · changed −2 pts in 24h
−2 pts
21%
Yes 21%
No 79%
Leave SAN more than 15 minutes late?
Calm-weather odds: 24% · changed −1 pt in 24h
−1 pt
27%
Yes 27%
No 73%
Arrive at SMF more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SMF?
On time or early
79%
15–30 min late
5%
30 min–1 hour late
6%
1–2 hours late
7%
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
↑
1pm departures from SAN are often late
↑
This flight has been late 51% of the time recently
↑
SAN is prone to delays
↓
Mostly benign weather forecast at SMF
↓
WN's recent on-time record
Weather at each end
SAN (origin)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip none
SMF (destination)
Gusts 7 kt Ceiling none (clear) Visibility 10+ 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.