WN4134 SAN → SMF

Southwest Airlines · San Diego, CA to Sacramento, CA · 57 flights observed, 2026-04-07 to 2026-06-03 · 480 mi

This flight's reliability varies a lot by day of week — 78% on-time on Tuesdays vs. 14% on Sundays.

WN4134 covers more than one route in the data window — the stats below are for SAN → SMF, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
63%
Median delay
+1 min
90th percentile
+57 min
Cancellation rate
0%

How often is WN4134 on time?

Across 57 flights on SAN → SMF from 2026-04-07 to 2026-06-03, WN4134 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +57 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3663%
16-30 min611%
31-60 min1018%
61-120 min59%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042454%+15 min
2026-053067%+15 min
2026-063100%-6 min

Performance by day of week

DayFlightsOn-time
Mon875%
Tue978%
Wed956%
Thu863%
Fri875%
Sat875%
Sun714%

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