WN178 SAN → BNA

Southwest Airlines · San Diego, CA to Nashville, TN · 46 flights observed, 2025-11-02 to 2026-01-05 · 1,751 mi

This flight's reliability varies a lot by day of week — 100% on-time on Mondays vs. 63% on Wednesdays.

WN178 covers more than one route in the data window — the stats below are for SAN → BNA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
84%
Median delay
-3 min
90th percentile
+33 min
Cancellation rate
2%

How often is WN178 on time?

Across 46 flights on SAN → BNA from 2025-11-02 to 2026-01-05, WN178 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +33 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3884%
16-30 min24%
31-60 min24%
61-120 min37%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112396%-3 min
2025-122075%+6 min
2026-01250%+32 min

Performance by day of week

DayFlightsOn-time
Mon6100%
Tue6100%
Wed863%
Thu875%
Fri683%
Sat4100%
Sun786%

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