Flight OddsUA3640 IAD → ROC
United Airlines · Washington, DC to Rochester, NY · 27 flights observed, 2026-01-07 to 2026-02-11 · 287 mi
UA3640 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
80%
Median delay
-8 min
90th percentile
+31 min
Cancellation rate
4%
How often is UA3640 on time?
Across 27 flights on IAD → ROC from 2026-01-07 to 2026-02-11, UA3640 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +31 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 20 | 80% |
| 16-30 min | 2 | 8% |
| 31-60 min | 2 | 8% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 17 | 82% | -2 min |
| 2026-02 | 8 | 75% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 1 | 100% |
| Wed | 6 | 100% |
| Thu | 5 | 80% |
| Fri | 4 | 75% |
| Sat | 5 | 80% |
| Sun | 4 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…