Flight OddsUA4520 ROC → EWR
United Airlines · Rochester, NY to Newark, NJ · 29 flights observed, 2026-05-21 to 2026-06-24 · 246 mi
UA4520 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
65%
Median delay
-7 min
90th percentile
+144 min
Cancellation rate
10%
How often is UA4520 on time?
Across 29 flights on ROC → EWR from 2026-05-21 to 2026-06-24, UA4520 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +144 min or later. 10% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 17 | 65% |
| 16-30 min | 1 | 4% |
| 31-60 min | 0 | 0% |
| 61-120 min | 3 | 12% |
| 2+ hrs | 5 | 19% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 8 | 63% | +27 min |
| 2026-06 | 18 | 67% | +82 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 5 | 60% |
| Wed | 5 | 60% |
| Thu | 4 | 50% |
| Fri | 5 | 60% |
| Sat | No data | — |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…