WN4342 SMF → LAX

Southwest Airlines · Sacramento, CA to Los Angeles, CA · 57 flights observed, 2026-04-07 to 2026-06-03 · 373 mi

This flight runs much more reliably at some times of day than others — 85% on-time departing 9am–12pm vs. 42% departing 3–6pm.

WN4342 covers more than one route in the data window — the stats below are for SMF → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
+3 min
90th percentile
+44 min
Cancellation rate
0%

How often is WN4342 on time?

Across 57 flights on SMF → LAX from 2026-04-07 to 2026-06-03, WN4342 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +44 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3867%
16-30 min916%
31-60 min611%
61-120 min24%
2+ hrs24%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042475%+16 min
2026-053063%+15 min
2026-06333%+10 min

Performance by day of week

DayFlightsOn-time
Mon825%
Tue989%
Wed978%
Thu850%
Fri850%
Sat8100%
Sun771%

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