Flight OddsUA4523 ROC → EWR
United Airlines · Rochester, NY to Newark, NJ · 196 flights observed, 2025-07-01 to 2026-03-28 · 246 mi
UA4523 covers more than one route in the data window — the stats below are for ROC → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-10 min
90th percentile
+58 min
Cancellation rate
2%
How often is UA4523 on time?
Across 196 flights on ROC → EWR from 2025-07-01 to 2026-03-28, UA4523 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +58 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 | 153 | 80% |
| 16-30 min | 10 | 5% |
| 31-60 min | 12 | 6% |
| 61-120 min | 9 | 5% |
| 2+ hrs | 8 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 84% | -6 min |
| 2025-08 | 31 | 81% | +4 min |
| 2025-09 | 18 | 78% | +7 min |
| 2025-10 | 6 | 83% | +22 min |
| 2025-11 | 22 | 73% | +35 min |
| 2025-12 | 15 | 60% | +24 min |
| 2026-01 | 20 | 90% | +5 min |
| 2026-02 | 24 | 88% | -3 min |
| 2026-03 | 25 | 76% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 28 | 79% |
| Tue | 28 | 86% |
| Wed | 32 | 81% |
| Thu | 31 | 77% |
| Fri | 31 | 87% |
| Sat | 18 | 89% |
| Sun | 24 | 58% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…