WN3791 STL → LAX

Southwest Airlines · St. Louis, MO to Los Angeles, CA · 59 flights observed, 2025-11-02 to 2026-01-05 · 1,592 mi

This flight runs much more reliably at some times of day than others — 88% on-time departing 9am–12pm vs. 52% departing 6–9pm.

WN3791 covers more than one route in the data window — the stats below are for STL → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
69%
Median delay
+4 min
90th percentile
+40 min
Cancellation rate
0%

How often is WN3791 on time?

Across 59 flights on STL → LAX from 2025-11-02 to 2026-01-05, WN3791 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +40 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4169%
16-30 min915%
31-60 min814%
61-120 min12%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112580%+7 min
2025-122966%+6 min
2026-01540%+18 min

Performance by day of week

DayFlightsOn-time
Mon1060%
Tue978%
Wed989%
Thu850%
Fri967%
Sat580%
Sun967%

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