Flight OddsUA4230 IAD → HSV
United Airlines · Washington, DC to Huntsville, AL · 52 flights observed, 2025-10-26 to 2025-12-17 · 596 mi
UA4230 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
79%
Median delay
-1 min
90th percentile
+25 min
Cancellation rate
0%
How often is UA4230 on time?
Across 52 flights on IAD → HSV from 2025-10-26 to 2025-12-17, UA4230 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +25 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 41 | 79% |
| 16-30 min | 8 | 15% |
| 31-60 min | 0 | 0% |
| 61-120 min | 3 | 6% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 67% | +2 min |
| 2025-11 | 29 | 86% | 0 min |
| 2025-12 | 17 | 71% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 63% |
| Tue | 8 | 75% |
| Wed | 8 | 100% |
| Thu | 6 | 50% |
| Fri | 7 | 100% |
| Sat | 7 | 71% |
| Sun | 8 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…