Flight OddsUA4581 LEX → ORD
United Airlines · Lexington, KY to Chicago, IL · 48 flights observed, 2025-07-01 to 2025-08-18 · 323 mi
UA4581 covers more than one route in the data window — the stats below are for LEX → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-16 min
90th percentile
+23 min
Cancellation rate
2%
How often is UA4581 on time?
Across 48 flights on LEX → ORD from 2025-07-01 to 2025-08-18, UA4581 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +23 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 | 41 | 87% |
| 16-30 min | 3 | 6% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 3 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 93% | +2 min |
| 2025-08 | 17 | 76% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 7 | 86% |
| Wed | 7 | 86% |
| Thu | 7 | 100% |
| Fri | 7 | 71% |
| Sat | 6 | 100% |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…