WN4978 OAK → LAX

Southwest Airlines · Oakland, CA to Los Angeles, CA · 19 flights observed, 2026-06-04 to 2026-06-30 · 337 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is +1 min, while the worst 10% run +76 min or later.

WN4978 covers more than one route in the data window — the stats below are for OAK → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
74%
Median delay
+1 min
90th percentile
+76 min
Cancellation rate
0%

How often is WN4978 on time?

Across 19 flights on OAK → LAX from 2026-06-04 to 2026-06-30, WN4978 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +76 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1474%
16-30 min00%
31-60 min00%
61-120 min526%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-061974%+16 min

Performance by day of week

DayFlightsOn-time
Mon475%
Tue4100%
Wed3100%
Thu450%
Fri450%
SatNo data—
SunNo data—

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