WN3509 SJC → AUS

Southwest Airlines · San Jose, CA to Austin, TX · 50 flights observed, 2026-01-06 to 2026-03-04 · 1,476 mi

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

WN3509 covers more than one route in the data window — the stats below are for SJC → AUS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
72%
Median delay
+5 min
90th percentile
+42 min
Cancellation rate
0%

How often is WN3509 on time?

Across 50 flights on SJC → AUS from 2026-01-06 to 2026-03-04, WN3509 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +42 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3672%
16-30 min714%
31-60 min510%
61-120 min24%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012277%+7 min
2026-022471%+12 min
2026-03450%+15 min

Performance by day of week

DayFlightsOn-time
Mon875%
Tue989%
Wed956%
Thu850%
Fri875%
SatNo data—
Sun888%

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