WN4400 ONT → DEN

Southwest Airlines · Ontario, CA to Denver, CO · 24 flights observed, 2025-11-03 to 2026-01-01 · 819 mi

This flight's reliability varies a lot by day of week — 100% on-time on Tuesdays vs. 63% on Wednesdays.

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

On-time arrival
83%
Median delay
-3 min
90th percentile
+65 min
Cancellation rate
0%

How often is WN4400 on time?

Across 24 flights on ONT → DEN from 2025-11-03 to 2026-01-01, WN4400 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +65 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 min14%
31-60 min00%
61-120 min28%
2+ hrs14%

Performance by month

MonthFlightsOn-timeAvg delay
2025-11989%+1 min
2025-121486%+18 min
2026-0110%+20 min

Performance by day of week

DayFlightsOn-time
Mon4100%
Tue6100%
Wed863%
Thu580%
Fri1100%
SatNo data—
SunNo data—

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