WN3633 SAN → SFO

Southwest Airlines · San Diego, CA to San Francisco, CA · 15 flights observed, 2025-07-03 to 2025-08-04 · 447 mi

This flight has been on time less than half the time (33%) — expect a real chance of a delay.

WN3633 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
33%
Median delay
+23 min
90th percentile
+107 min
Cancellation rate
0%

How often is WN3633 on time?

Across 15 flights on SAN → SFO from 2025-07-03 to 2025-08-04, WN3633 arrived within 15 minutes of schedule 33% of the time. The median arrival delay was +23 min, and the worst 10% of flights arrived +107 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time533%
16-30 min427%
31-60 min213%
61-120 min320%
2+ hrs17%

Performance by month

MonthFlightsOn-timeAvg delay
2025-071338%+44 min
2025-0820%+30 min

Performance by day of week

DayFlightsOn-time
Mon520%
TueNo data—
WedNo data—
Thu520%
Fri560%
SatNo data—
SunNo data—

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