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 3489
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 3489 · SJC → SAN
departs 6:30 AM PT · arrives 8:00 AM PT
Forecast issued Thu 10:00 PM ET · 12h after departure
Watch this flight
Other days
Thu 10/1
Mon 10/5 9%
Fri 10/9 11%
Odds over time
Arrive at SAN more than 15 minutes late?
12%
chance · ±0 pts
−4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
12%
Leave 15+ late
4%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at SAN more than 15 minutes late?
Calm-weather odds: 12% · changed −4 pts in 24h
−4 pts
12%
Yes 12%
No 88%
Leave SJC more than 15 minutes late?
Calm-weather odds: 4% · changed −2 pts in 24h
−2 pts
4%
Yes 4%
No 96%
Arrive at SAN 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 SAN?
On time or early
88%
15–30 min late
8%
30 min–1 hour late
2%
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
↑
This flight has been late 12% of the time recently
↑
Other factors
↓
Early flights usually leave on time
↓
6am departures from SJC are usually not late
Weather at each end
SJC (origin)
Gusts 10 kt Ceiling 700 ft Visibility 6 mi Precip none
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.