Flight OddsUA4557 IAD → ROC
United Airlines · Washington, DC to Rochester, NY · 31 flights observed, 2025-10-26 to 2025-12-01 · 287 mi
UA4557 covers more than one route in the data window — the stats below are for IAD → ROC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
+2 min
90th percentile
+83 min
Cancellation rate
3%
How often is UA4557 on time?
Across 31 flights on IAD → ROC from 2025-10-26 to 2025-12-01, UA4557 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +83 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 22 | 73% |
| 16-30 min | 2 | 7% |
| 31-60 min | 2 | 7% |
| 61-120 min | 2 | 7% |
| 2+ hrs | 2 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 5 | 40% | +66 min |
| 2025-11 | 24 | 83% | +16 min |
| 2025-12 | 1 | 0% | +80 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 33% |
| Tue | 5 | 100% |
| Wed | 5 | 100% |
| Thu | 3 | 100% |
| Fri | 3 | 33% |
| Sat | 5 | 100% |
| Sun | 6 | 33% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…