Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4957
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 4957 · SFO → LAX
departs 9:25 AM PT · arrives 11:05 AM PT
Forecast issued Fri 8:00 PM ET · 8h after departure
Watch this flight
Other days
Today
Sat 10/3 19%
Sun 10/4 24%
Mon 10/5 12%
Odds over time
Arrive at LAX more than 15 minutes late?
18%
chance · ±0 pts
−4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
18%
Leave 15+ late
22%
Arrive 1h+ late
9%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.6d
2d
1d
12h
6h
Departs
Lands
Arrive at LAX more than 15 minutes late?
Calm-weather odds: 18% · changed −4 pts in 24h
−4 pts
18%
Yes 18%
No 82%
Leave SFO more than 15 minutes late?
Calm-weather odds: 22% · changed −4 pts in 24h
−4 pts
22%
Yes 22%
No 78%
Arrive at LAX more than an hour late?
Calm-weather odds: 9% · changed −2 pts in 24h
−2 pts
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 LAX?
On time or early
82%
15–30 min late
6%
30 min–1 hour late
3%
1–2 hours late
6%
Over 2 hours late
2%
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 47% of the time recently
↑
SFO is prone to delays
↑
LAX is prone to delays
↓
Mostly benign weather forecast at LAX
↓
Other factors
Weather at each end
SFO (origin)
Gusts 9 kt Ceiling 300 ft Visibility 3 mi Precip none
LAX (destination)
Gusts 12 kt Ceiling none (clear) Visibility 3 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.