WN3966 SAN → PHX

Southwest Airlines · San Diego, CA to Phoenix, AZ · 55 flights observed, 2026-01-06 to 2026-03-04 · 304 mi

This flight has a strong track record — on time 95% of the time, with a low cancellation rate.

WN3966 covers more than one route in the data window — the stats below are for SAN → PHX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
95%
Median delay
-13 min
90th percentile
+8 min
Cancellation rate
0%

How often is WN3966 on time?

Across 55 flights on SAN → PHX from 2026-01-06 to 2026-03-04, WN3966 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +8 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time5295%
16-30 min24%
31-60 min12%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012696%-13 min
2026-022592%-5 min
2026-034100%-12 min

Performance by day of week

DayFlightsOn-time
Mon8100%
Tue989%
Wed9100%
Thu875%
Fri8100%
Sat5100%
Sun8100%

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