Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3648
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
WN 3648 · SFO → LAX
departs 9:05 PM PT · arrives 10:40 PM PT
Forecast issued Sun 10:00 AM ET · 38h before departure
Watch this flight
Other days
Today 36%
Mon 10/5
Fri 10/9 45%
Odds over time
Arrive at LAX more than 15 minutes late?
40%
chance · ±11 pts
+3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
40%
Leave 15+ late
35%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
7.0d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at LAX more than 15 minutes late?
Calm-weather odds: 27% · changed +3 pts in 24h
+3 pts
40%
Yes 40%
No 60%
Leave SFO more than 15 minutes late?
Calm-weather odds: 32% · changed +2 pts in 24h
+2 pts
35%
Yes 35%
No 65%
Arrive at LAX more than an hour late?
Calm-weather odds: 8% · changed +1 pt in 24h
+1 pt
8%
Yes 8%
No 92%
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
60%
15–30 min late
11%
30 min–1 hour late
20%
1–2 hours late
5%
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
↑
This flight has been late 54% of the time recently
↑
Later flights pick up delays from earlier in the day
↑
9pm departures from SFO are often late
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at SFO
Weather at each end
SFO (origin)
Gusts 13 kt Ceiling none (clear) Visibility 7 mi Precip none
LAX (destination)
Gusts 18 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.