Flight OddsUA4551 ROC → ORD
United Airlines · Rochester, NY to Chicago, IL · 9 flights observed, 2026-03-29 to 2026-04-25 · 528 mi
UA4551 covers more than one route in the data window — the stats below are for ROC → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
63%
Median delay
-8 min
90th percentile
+307 min
Cancellation rate
11%
How often is UA4551 on time?
Across 9 flights on ROC → ORD from 2026-03-29 to 2026-04-25, UA4551 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +307 min or later. 11% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 5 | 63% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 3 | 38% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 3 | 67% | +45 min |
| 2026-04 | 5 | 60% | +137 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 1 | 100% |
| Tue | 1 | 0% |
| Wed | 1 | 0% |
| Thu | No data | — |
| Fri | 1 | 100% |
| Sat | 2 | 50% |
| Sun | 2 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…