WN4383 SAN → SJC

Southwest Airlines · San Diego, CA to San Jose, CA · 33 flights observed, 2026-03-05 to 2026-04-06 · 417 mi

This flight runs much more reliably at some times of day than others — 83% on-time departing 6–9pm vs. 40% departing 9pm–12am.

WN4383 covers more than one route in the data window — the stats below are for SAN → SJC, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
76%
Median delay
-5 min
90th percentile
+62 min
Cancellation rate
0%

How often is WN4383 on time?

Across 33 flights on SAN → SJC from 2026-03-05 to 2026-04-06, WN4383 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +62 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2576%
16-30 min26%
31-60 min13%
61-120 min39%
2+ hrs26%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032781%+3 min
2026-04650%+31 min

Performance by day of week

DayFlightsOn-time
Mon580%
Tue4100%
Wed4100%
Thu560%
Fri580%
Sat540%
Sun580%

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