WN533 DEN → ONT

Southwest Airlines · Denver, CO to Ontario, CA · 42 flights observed, 2025-11-02 to 2026-01-05 · 819 mi

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

WN533 covers more than one route in the data window — the stats below are for DEN → ONT, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
80%
Median delay
-4 min
90th percentile
+26 min
Cancellation rate
2%

How often is WN533 on time?

Across 42 flights on DEN → ONT from 2025-11-02 to 2026-01-05, WN533 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +26 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3380%
16-30 min410%
31-60 min25%
61-120 min25%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112190%+0 min
2025-121872%+5 min
2026-01250%+15 min

Performance by day of week

DayFlightsOn-time
Mon7100%
Tue560%
Wed888%
Thu863%
Fri6100%
SatNo data—
Sun771%

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