WN1315 SJC → ONT

Southwest Airlines · San Jose, CA to Ontario, CA · 42 flights observed, 2025-08-05 to 2025-10-01 · 333 mi

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

WN1315 covers more than one route in the data window — the stats below are for SJC → ONT, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
79%
Median delay
-6 min
90th percentile
+21 min
Cancellation rate
0%

How often is WN1315 on time?

Across 42 flights on SJC → ONT from 2025-08-05 to 2025-10-01, WN1315 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +21 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3379%
16-30 min614%
31-60 min25%
61-120 min12%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-081984%-4 min
2025-092273%+9 min
2025-101100%-14 min

Performance by day of week

DayFlightsOn-time
Mon875%
Tue9100%
Wed989%
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…