WN4109 SNA → SJC

Southwest Airlines · Santa Ana, CA to San Jose, CA · 42 flights observed, 2025-08-05 to 2025-10-01 · 342 mi

This flight's reliability varies a lot by day of week — 100% on-time on Wednesdays vs. 50% on Fridays.

WN4109 covers more than one route in the data window — the stats below are for SNA → SJC, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
74%
Median delay
-3 min
90th percentile
+35 min
Cancellation rate
0%

How often is WN4109 on time?

Across 42 flights on SNA → SJC from 2025-08-05 to 2025-10-01, WN4109 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +35 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3174%
16-30 min512%
31-60 min410%
61-120 min00%
2+ hrs25%

Performance by month

MonthFlightsOn-timeAvg delay
2025-081984%-2 min
2025-092264%+19 min
2025-101100%-12 min

Performance by day of week

DayFlightsOn-time
Mon863%
Tue978%
Wed9100%
Thu875%
Fri850%
SatNo data—
SunNo data—

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