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 3542
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 3542 · SAN → SJC
departs 9:00 PM PT · arrives 10:30 PM PT
Forecast issued Thu 10:00 PM ET · 2h before departure
Watch this flight
Other days
Thu 10/1
Today 48%
Mon 10/5 26%
Fri 10/9 38%
Odds over time
Arrive at SJC more than 15 minutes late?
66%
chance · ±0 pts
+27 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
66%
Leave 15+ late
67%
Arrive 1h+ late
38%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 37% · changed +27 pts in 24h
+27 pts
66%
Yes 66%
No 34%
Leave SAN more than 15 minutes late?
Calm-weather odds: 37% · changed +30 pts in 24h
+30 pts
67%
Yes 67%
No 33%
Arrive at SJC more than an hour late?
Calm-weather odds: 9% · changed +27 pts in 24h
+27 pts
38%
Yes 38%
No 62%
Cancelled?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
2%
Yes 2%
No 98%
How late will it get to SJC?
On time or early
33%
15–30 min late
39%
30 min–1 hour late
0%
1–2 hours late
24%
Over 2 hours late
2%
Cancelled
2%
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
↑
This flight has been late 37% of the time recently
↓
Cloud base down to 700 ft forecast at SJC that day
↓
Cloud base down to 500 ft forecast at SAN that day
Weather at each end
SAN (origin)
Gusts 19 kt Ceiling 500 ft Visibility 4 mi Precip none
SJC (destination)
Gusts 10 kt Ceiling 700 ft Visibility 6 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.