WN4181 SMF → HOU

Southwest Airlines · Sacramento, CA to Houston, TX · 34 flights observed, 2025-07-01 to 2025-08-04 · 1,624 mi

This flight runs much more reliably at some times of day than others — 100% on-time departing 3–6am vs. 42% departing 12–3pm.

WN4181 covers more than one route in the data window — the stats below are for SMF → HOU, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
68%
Median delay
+8 min
90th percentile
+33 min
Cancellation rate
0%

How often is WN4181 on time?

Across 34 flights on SMF → HOU from 2025-07-01 to 2025-08-04, WN4181 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +33 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2368%
16-30 min618%
31-60 min412%
61-120 min00%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073067%+12 min
2025-08475%+14 min

Performance by day of week

DayFlightsOn-time
Mon540%
Tue5100%
Wed5100%
Thu540%
Fri425%
Sat5100%
Sun560%

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