WN4400 OAK → ONT

Southwest Airlines · Oakland, CA to Ontario, CA · 24 flights observed, 2025-11-03 to 2026-01-01 · 362 mi

This flight's reliability varies a lot by day of week — 100% on-time on Tuesdays vs. 60% on Thursdays.

WN4400 covers more than one route in the data window — the stats below are for OAK → ONT, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
83%
Median delay
-9 min
90th percentile
+20 min
Cancellation rate
0%

How often is WN4400 on time?

Across 24 flights on OAK → ONT from 2025-11-03 to 2026-01-01, WN4400 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +20 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2083%
16-30 min28%
31-60 min14%
61-120 min14%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-11989%+1 min
2025-121486%-3 min
2026-0110%+21 min

Performance by day of week

DayFlightsOn-time
Mon4100%
Tue6100%
Wed875%
Thu560%
Fri1100%
SatNo data—
SunNo data—

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