UA423 IAH → DEN

United Airlines · Houston, TX to Denver, CO · 37 flights observed, 2025-10-26 to 2025-12-01 · 861 mi

UA423 covers more than one route in the data window — the stats below are for IAH → DEN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
89%
Median delay
-13 min
90th percentile
+16 min
Cancellation rate
0%

How often is UA423 on time?

Across 37 flights on IAH → DEN from 2025-10-26 to 2025-12-01, UA423 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +16 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3389%
16-30 min25%
31-60 min13%
61-120 min00%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-10683%-4 min
2025-113090%+1 min
2025-121100%-10 min

Performance by day of week

DayFlightsOn-time
Mon683%
Tue5100%
Wed580%
Thu5100%
Fri5100%
Sat580%
Sun683%

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