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 3537
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 3537 · SAN → SJC
departs 7:55 AM PT · arrives 9:20 AM PT
Forecast issued Wed 11:00 AM ET · 0h before departure
Watch this flight
Other days
Today
Thu 10/1 11%
Fri 10/2 11%
Sun 10/4 10%
Mon 10/5 11%
Tue 10/6 14%
Odds over time
Arrive at SJC more than 15 minutes late?
11%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
11%
Leave 15+ late
6%
Arrive 1h+ late
1%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 11% · changed +1 pt in 24h
+1 pt
11%
Yes 11%
No 89%
Leave SAN more than 15 minutes late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Arrive at SJC more than an hour late?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SJC?
On time or early
88%
15–30 min late
5%
30 min–1 hour late
4%
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 busy at that time
↑
Other factors
↑
SAN is prone to delays
↓
Arrivals into SJC at that hour are usually not late
↓
Early flights usually leave on time
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.