Flight OddsUA4833 ROA → IAD
United Airlines · Roanoke, VA to Washington, DC · 321 flights observed, 2025-07-01 to 2026-06-24 · 177 mi
UA4833 covers more than one route in the data window — the stats below are for ROA → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-8 min
90th percentile
+80 min
Cancellation rate
1%
How often is UA4833 on time?
Across 321 flights on ROA → IAD from 2025-07-01 to 2026-06-24, UA4833 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +80 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 252 | 79% |
| 16-30 min | 19 | 6% |
| 31-60 min | 8 | 3% |
| 61-120 min | 17 | 5% |
| 2+ hrs | 21 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 22 | 77% | +19 min |
| 2025-08 | 20 | 60% | +53 min |
| 2025-09 | 24 | 88% | -6 min |
| 2025-10 | 31 | 90% | +0 min |
| 2025-11 | 30 | 87% | +0 min |
| 2025-12 | 31 | 71% | +16 min |
| 2026-01 | 29 | 86% | +2 min |
| 2026-02 | 24 | 96% | -10 min |
| 2026-03 | 27 | 63% | +18 min |
| 2026-04 | 30 | 90% | +2 min |
| 2026-05 | 29 | 59% | +78 min |
| 2026-06 | 20 | 85% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 49 | 78% |
| Tue | 51 | 82% |
| Wed | 51 | 82% |
| Thu | 51 | 75% |
| Fri | 46 | 72% |
| Sat | 27 | 96% |
| Sun | 42 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…