SMF → STL Southwest Airlines

Southwest Airlines · Sacramento, CA to St. Louis, MO · 331 flights, 2025-07-01 to 2026-06-30 · aggregated across 13 flight numbers

On-time arrival
82%
Median delay
-1 min
90th percentile
+27 min
Cancellation rate
0%

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

Across every Southwest Airlines flight number on SMF → STL (331 flights, 2025-07-01 to 2026-06-30), 82% arrived within 15 minutes of schedule. Median arrival delay -1 min; the worst 10% ran +27 min or later. 0% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time27082%
16-30 min319%
31-60 min206%
61-120 min72%
2+ hrs31%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073190%+1 min
2025-083190%-2 min
2025-093080%+3 min
2025-103184%+4 min
2025-112983%+4 min
2025-123181%+11 min
2026-011090%-1 min
2026-0218100%-11 min
2026-032979%+10 min
2026-043073%+7 min
2026-053174%+6 min
2026-063067%+10 min

Performance by day of week

DayFlightsOn-time
Mon4982%
Tue4573%
Wed4388%
Thu4873%
Fri4978%
Sat4794%
Sun5084%

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