Flight OddsUA4583 ORD → ROA
United Airlines · Chicago, IL to Roanoke, VA · 32 flights observed, 2026-01-06 to 2026-02-11 · 530 mi
UA4583 covers more than one route in the data window — the stats below are for ORD → ROA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
68%
Median delay
-13 min
90th percentile
+70 min
Cancellation rate
3%
How often is UA4583 on time?
Across 32 flights on ORD → ROA from 2026-01-06 to 2026-02-11, UA4583 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +70 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 | 21 | 68% |
| 16-30 min | 1 | 3% |
| 31-60 min | 5 | 16% |
| 61-120 min | 3 | 10% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 21 | 62% | +16 min |
| 2026-02 | 10 | 80% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 6 | 100% |
| Wed | 6 | 67% |
| Thu | 5 | 60% |
| Fri | 5 | 40% |
| Sat | No data | — |
| 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…