Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2100
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 2100 · SAN → SJC
departs 9:55 AM PT · arrives 11:25 AM PT
Forecast issued Wed 10:00 AM ET · 3h before departure
Watch this flight
Other days
Today
Tue 10/6 15%
Odds over time
Arrive at SJC more than 15 minutes late?
25%
chance · ±0 pts
+11 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
25%
Leave 15+ late
24%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 16% · changed +11 pts in 24h
+11 pts
25%
Yes 25%
No 75%
Leave SAN more than 15 minutes late?
Calm-weather odds: 12% · changed +12 pts in 24h
+12 pts
24%
Yes 24%
No 76%
Arrive at SJC more than an hour late?
Calm-weather odds: 2% · changed +2 pts in 24h
+2 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to SJC?
On time or early
75%
15–30 min late
16%
30 min–1 hour late
4%
1–2 hours late
4%
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
↑
This flight has been late 28% of the time recently
↑
9am departures from SAN are often late
↑
SAN is prone to delays
↓
Wednesdays in September are usually quieter than average
↓
Arrivals into SJC at that hour are usually not late
Weather at each end
SAN (origin)
Gusts 12 kt Ceiling 700 ft Visibility 8 mi Precip none
SJC (destination)
Gusts 13 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.