Flight OddsUA4597 ORD → ROA
United Airlines · Chicago, IL to Roanoke, VA · 21 flights observed, 2025-07-03 to 2025-08-18 · 530 mi
UA4597 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
90%
Median delay
-18 min
90th percentile
+8 min
Cancellation rate
0%
How often is UA4597 on time?
Across 21 flights on ORD → ROA from 2025-07-03 to 2025-08-18, UA4597 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -18 min, and the worst 10% of flights arrived +8 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 18 | 90% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 5% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 13 | 85% | -1 min |
| 2025-08 | 7 | 100% | -15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 83% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 7 | 100% |
| Fri | 7 | 86% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…