WN437 AUS → SAN

Southwest Airlines · Austin, TX to San Diego, CA · 64 flights observed, 2025-11-02 to 2026-01-05 · 1,164 mi

This flight's reliability varies a lot by day of week — 88% on-time on Thursdays vs. 33% on Sundays.

WN437 covers more than one route in the data window — the stats below are for AUS → SAN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
57%
Median delay
+11 min
90th percentile
+53 min
Cancellation rate
2%

How often is WN437 on time?

Across 64 flights on AUS → SAN from 2025-11-02 to 2026-01-05, WN437 arrived within 15 minutes of schedule 57% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +53 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3657%
16-30 min1117%
31-60 min1016%
61-120 min58%
2+ hrs12%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112763%+17 min
2025-123158%+10 min
2026-01520%+39 min

Performance by day of week

DayFlightsOn-time
Mon1040%
Tue956%
Wed978%
Thu888%
Fri956%
Sat956%
Sun933%

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