UA4001 PNS → IAH

United Airlines · Pensacola, FL to Houston, TX · 24 flights observed, 2026-03-05 to 2026-03-28 · 489 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -22 min, while the worst 10% run +53 min or later.

UA4001 covers more than one route in the data window — the stats below are for PNS → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
78%
Median delay
-22 min
90th percentile
+53 min
Cancellation rate
4%

How often is UA4001 on time?

Across 24 flights on PNS → IAH from 2026-03-05 to 2026-03-28, UA4001 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -22 min, and the worst 10% of flights arrived +53 min or later. 4% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1878%
16-30 min14%
31-60 min29%
61-120 min14%
2+ hrs14%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032378%+10 min

Performance by day of week

DayFlightsOn-time
Mon333%
Tue3100%
Wed3100%
Thu450%
Fri475%
Sat4100%
Sun2100%

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