Flight OddsUA4551 HSV → ORD
United Airlines · Huntsville, AL to Chicago, IL · 66 flights observed, 2026-01-07 to 2026-03-26 · 510 mi
UA4551 covers more than one route in the data window — the stats below are for HSV → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-5 min
90th percentile
+66 min
Cancellation rate
2%
How often is UA4551 on time?
Across 66 flights on HSV → ORD from 2026-01-07 to 2026-03-26, UA4551 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +66 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 | 48 | 75% |
| 16-30 min | 4 | 6% |
| 31-60 min | 4 | 6% |
| 61-120 min | 4 | 6% |
| 2+ hrs | 4 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 24 | 58% | +22 min |
| 2026-02 | 27 | 85% | +6 min |
| 2026-03 | 13 | 85% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 63% |
| Tue | 8 | 63% |
| Wed | 10 | 50% |
| Thu | 11 | 91% |
| Fri | 8 | 88% |
| Sat | 8 | 63% |
| Sun | 11 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…