WN1734 SJC → SAN

Southwest Airlines · San Jose, CA to San Diego, CA · 42 flights observed, 2025-08-05 to 2025-10-01 · 417 mi

This flight's reliability varies a lot by day of week — 89% on-time on Tuesdays vs. 50% on Fridays.

WN1734 covers more than one route in the data window — the stats below are for SJC → SAN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
71%
Median delay
+8 min
90th percentile
+91 min
Cancellation rate
0%

How often is WN1734 on time?

Across 42 flights on SJC → SAN from 2025-08-05 to 2025-10-01, WN1734 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +91 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3071%
16-30 min512%
31-60 min25%
61-120 min37%
2+ hrs25%

Performance by month

MonthFlightsOn-timeAvg delay
2025-081968%+12 min
2025-092273%+25 min
2025-101100%-5 min

Performance by day of week

DayFlightsOn-time
Mon863%
Tue989%
Wed989%
Thu863%
Fri850%
SatNo data—
SunNo data—

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