WN3403 LAX → SFO

Southwest Airlines · Los Angeles, CA to San Francisco, CA · 64 flights observed, 2025-11-02 to 2026-01-05 · 337 mi

This flight runs much more reliably at some times of day than others — 70% on-time departing 12–3pm vs. 22% departing 6–9pm.

WN3403 covers more than one route in the data window — the stats below are for LAX → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
51%
Median delay
+14 min
90th percentile
+138 min
Cancellation rate
2%

How often is WN3403 on time?

Across 64 flights on LAX → SFO from 2025-11-02 to 2026-01-05, WN3403 arrived within 15 minutes of schedule 51% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +138 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3251%
16-30 min711%
31-60 min46%
61-120 min1219%
2+ hrs813%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112744%+39 min
2025-123158%+32 min
2026-01540%+120 min

Performance by day of week

DayFlightsOn-time
Mon1060%
Tue989%
Wed850%
Thu838%
Fri922%
Sat967%
Sun1030%

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