WN2921 SAN → SFO

Southwest Airlines · San Diego, CA to San Francisco, CA · 25 flights observed, 2025-07-01 to 2025-08-04 · 447 mi

This flight runs much more reliably at some times of day than others — 90% on-time departing 6–9am vs. 33% departing 9am–12pm.

WN2921 covers more than one route in the data window — the stats below are for SAN → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
56%
Median delay
+7 min
90th percentile
+30 min
Cancellation rate
0%

How often is WN2921 on time?

Across 25 flights on SAN → SFO from 2025-07-01 to 2025-08-04, WN2921 arrived within 15 minutes of schedule 56% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +30 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1456%
16-30 min832%
31-60 min312%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072357%+6 min
2025-08250%+33 min

Performance by day of week

DayFlightsOn-time
Mon560%
Tue580%
Wed5100%
Thu520%
Fri520%
SatNo data—
SunNo data—

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