UA4901 IAD → HSV

United Airlines · Washington, DC to Huntsville, AL · 138 flights observed, 2026-02-12 to 2026-06-29 · 596 mi

UA4901 covers more than one route in the data window — the stats below are for IAD → HSV, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
83%
Median delay
-16 min
90th percentile
+40 min
Cancellation rate
2%

How often is UA4901 on time?

Across 138 flights on IAD → HSV from 2026-02-12 to 2026-06-29, UA4901 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +40 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time11283%
16-30 min75%
31-60 min64%
61-120 min43%
2+ hrs64%

Performance by month

MonthFlightsOn-timeAvg delay
2026-021782%-3 min
2026-032983%+16 min
2026-043083%+17 min
2026-053077%+16 min
2026-062990%+16 min

Performance by day of week

DayFlightsOn-time
Mon1995%
Tue1968%
Wed1872%
Thu20100%
Fri1974%
Sat2095%
Sun2075%

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