WN4451 STL → SAN

Southwest Airlines · St. Louis, MO to San Diego, CA · 5 flights observed, 2025-11-22 to 2026-01-03 · 1,557 mi

WN4451 covers more than one route in the data window — the stats below are for STL → SAN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
40%
Median delay
+32 min
90th percentile
+65 min
Cancellation rate
0%

How often is WN4451 on time?

Across 5 flights on STL → SAN from 2025-11-22 to 2026-01-03, WN4451 arrived within 15 minutes of schedule 40% of the time. The median arrival delay was +32 min, and the worst 10% of flights arrived +65 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time240%
16-30 min00%
31-60 min240%
61-120 min120%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-11250%+8 min
2025-1220%+62 min
2026-011100%+4 min

Performance by day of week

DayFlightsOn-time
MonNo data—
TueNo data—
WedNo data—
ThuNo data—
FriNo data—
Sat540%
SunNo data—

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…