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).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 112 | 83% |
| 16-30 min | 7 | 5% |
| 31-60 min | 6 | 4% |
| 61-120 min | 4 | 3% |
| 2+ hrs | 6 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 17 | 82% | -3 min |
| 2026-03 | 29 | 83% | +16 min |
| 2026-04 | 30 | 83% | +17 min |
| 2026-05 | 30 | 77% | +16 min |
| 2026-06 | 29 | 90% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 19 | 95% |
| Tue | 19 | 68% |
| Wed | 18 | 72% |
| Thu | 20 | 100% |
| Fri | 19 | 74% |
| Sat | 20 | 95% |
| Sun | 20 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…