Flight OddsUA4871 IAD → ROC
United Airlines · Washington, DC to Rochester, NY · 166 flights observed, 2025-07-01 to 2026-06-24 · 287 mi
UA4871 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
74%
Median delay
0 min
90th percentile
+57 min
Cancellation rate
7%
How often is UA4871 on time?
Across 166 flights on IAD → ROC from 2025-07-01 to 2026-06-24, UA4871 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +57 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 114 | 74% |
| 16-30 min | 12 | 8% |
| 31-60 min | 15 | 10% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 8 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 24 | 58% | +39 min |
| 2025-08 | 31 | 68% | +16 min |
| 2025-09 | 29 | 79% | +3 min |
| 2025-10 | 21 | 86% | +0 min |
| 2025-12 | 11 | 73% | +19 min |
| 2026-01 | 5 | 40% | +20 min |
| 2026-05 | 11 | 91% | -8 min |
| 2026-06 | 23 | 78% | +22 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 22 | 82% |
| Tue | 22 | 82% |
| Wed | 21 | 71% |
| Thu | 24 | 75% |
| Fri | 24 | 75% |
| Sat | 19 | 58% |
| Sun | 23 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…