Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 391
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 391 · AUS → SAN
departs 6:15 PM CT · arrives 7:10 PM PT
Forecast issued Fri 3:00 PM ET · 28h before departure
Watch this flight
Other days
Today 56%
Sat 10/3
Sun 10/4 35%
Mon 10/5 28%
Thu 10/8 24%
Odds over time
Arrive at SAN more than 15 minutes late?
30%
chance · ±2 pts
−7 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
39%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SAN more than 15 minutes late?
Calm-weather odds: 26% · changed −7 pts in 24h
−7 pts
30%
Yes 30%
No 70%
Leave AUS more than 15 minutes late?
Calm-weather odds: 30% · changed −8 pts in 24h
−8 pts
39%
Yes 39%
No 61%
Arrive at SAN more than an hour late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
9%
Yes 9%
No 91%
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
69%
15–30 min late
11%
30 min–1 hour late
10%
1–2 hours late
6%
Over 2 hours late
3%
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
↑
6pm departures from AUS are often late
↑
Cloud base down to 700 ft forecast at AUS that day
↓
Mostly benign weather forecast at SAN
↓
AUS usually runs smoothly
Weather at each end
AUS (origin)
Gusts 20 kt Ceiling 700 ft Visibility 5 mi Precip 0.13 in
SAN (destination)
Gusts 15 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.