LAX → STL Southwest Airlines

Southwest Airlines · Los Angeles, CA to St. Louis, MO · 674 flights, 2025-07-01 to 2026-06-30 · aggregated across 37 flight numbers

On-time arrival
78%
Median delay
-2 min
90th percentile
+34 min
Cancellation rate
0%

How on-time is Southwest Airlines from LAX to STL?

Across every Southwest Airlines flight number on LAX → STL (674 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +34 min or later. 0% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time52278%
16-30 min6710%
31-60 min457%
61-120 min233%
2+ hrs132%

Performance by month

MonthFlightsOn-timeAvg delay
2025-076284%+2 min
2025-086077%+7 min
2025-096082%+4 min
2025-106683%-3 min
2025-117177%+3 min
2025-127379%+3 min
2026-014477%+5 min
2026-024687%+3 min
2026-034470%+19 min
2026-044379%+7 min
2026-054377%+13 min
2026-065860%+18 min

Performance by day of week

DayFlightsOn-time
Mon10369%
Tue8885%
Wed8387%
Thu10378%
Fri10979%
Sat8278%
Sun10273%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…