Flight OddsUA4571 CHA → ORD
United Airlines · Chattanooga, TN to Chicago, IL · 41 flights observed, 2026-05-21 to 2026-06-30 · 501 mi
UA4571 covers more than one route in the data window — the stats below are for CHA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
+1 min
90th percentile
+28 min
Cancellation rate
2%
How often is UA4571 on time?
Across 41 flights on CHA → ORD from 2026-05-21 to 2026-06-30, UA4571 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +28 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 29 | 73% |
| 16-30 min | 7 | 18% |
| 31-60 min | 2 | 5% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 11 | 82% | +2 min |
| 2026-06 | 29 | 69% | +52 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 67% |
| Tue | 6 | 100% |
| Wed | 4 | 100% |
| Thu | 6 | 67% |
| Fri | 6 | 67% |
| Sat | 6 | 67% |
| Sun | 6 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…