WN1559 STL → SAN

Southwest Airlines · St. Louis, MO to San Diego, CA · 18 flights observed, 2025-10-02 to 2025-11-01 · 1,557 mi

WN1559 covers more than one route in the data window — the stats below are for STL → SAN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
78%
Median delay
+7 min
90th percentile
+33 min
Cancellation rate
0%

How often is WN1559 on time?

Across 18 flights on STL → SAN from 2025-10-02 to 2025-11-01, WN1559 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +33 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1478%
16-30 min00%
31-60 min317%
61-120 min16%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-101776%+11 min
2025-111100%-39 min

Performance by day of week

DayFlightsOn-time
Mon450%
TueNo data—
WedNo data—
Thu580%
Fri475%
Sat5100%
SunNo data—

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