Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1227
SCHEDULED · TYPICAL SCHEDULE
WN 1227 · LAS → SAN
departs 9:30 PM PT · arrives 10:45 PM PT
Forecast issued Wed 4:00 AM ET · 68h before departure
Odds over time
Arrive at SAN more than 15 minutes late?
44%
chance · ±14 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
-
-
-
-
How late will it get to SAN?
-
On time or early
55%
-
15–30 min late
14%
-
30 min–1 hour late
19%
-
1–2 hours late
8%
-
Over 2 hours late
3%
-
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.