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 4936
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 4936 · SNA → SJC
departs 7:55 PM PT · arrives 9:10 PM PT
Forecast issued Thu 10:00 PM ET · 1h before departure
Watch this flight
Other days
Thu 10/1
Today 23%
Mon 10/5 16%
Fri 10/9 24%
Odds over time
Arrive at SJC more than 15 minutes late?
22%
chance · ±1 pts
−5 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
22%
Leave 15+ late
28%
Arrive 1h+ late
5%
Cancelled
<1%
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: 22% · changed −5 pts in 24h
−5 pts
22%
Yes 22%
No 78%
Leave SNA more than 15 minutes late?
Calm-weather odds: 27% · changed −3 pts in 24h
−3 pts
28%
Yes 28%
No 72%
Arrive at SJC more than an hour late?
Calm-weather odds: 6% · changed −3 pts in 24h
−3 pts
5%
Yes 5%
No 95%
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
77%
15–30 min late
5%
30 min–1 hour late
11%
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
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↑
Other factors
↓
Cloud base down to 700 ft forecast at SJC that day
↓
Cloud base down to 700 ft forecast at SNA that day
Weather at each end
SNA (origin)
Gusts 9 kt Ceiling 700 ft Visibility 7 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.