UA4225 HSV → IAH

United Airlines · Huntsville, AL to Houston, TX · 36 flights observed, 2026-01-07 to 2026-02-11 · 595 mi

This flight's reliability varies a lot by day of week — 100% on-time on Fridays vs. 40% on Mondays.

UA4225 covers more than one route in the data window — the stats below are for HSV → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
69%
Median delay
-9 min
90th percentile
+87 min
Cancellation rate
3%

How often is UA4225 on time?

Across 36 flights on HSV → IAH from 2026-01-07 to 2026-02-11, UA4225 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +87 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2469%
16-30 min13%
31-60 min26%
61-120 min514%
2+ hrs39%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012458%+50 min
2026-021191%-14 min

Performance by day of week

DayFlightsOn-time
Mon540%
Tue540%
Wed683%
Thu580%
Fri5100%
Sat475%
Sun560%

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