Flight OddsUA4529 ORD → SDF
United Airlines · Chicago, IL to Louisville, KY · 68 flights observed, 2025-08-19 to 2025-10-25 · 286 mi
UA4529 covers more than one route in the data window — the stats below are for ORD → SDF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
-1 min
90th percentile
+64 min
Cancellation rate
0%
How often is UA4529 on time?
Across 68 flights on ORD → SDF from 2025-08-19 to 2025-10-25, UA4529 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +64 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 | 48 | 71% |
| 16-30 min | 5 | 7% |
| 31-60 min | 7 | 10% |
| 61-120 min | 4 | 6% |
| 2+ hrs | 4 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 85% | +13 min |
| 2025-09 | 30 | 70% | +20 min |
| 2025-10 | 25 | 64% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 78% |
| Tue | 10 | 80% |
| Wed | 10 | 40% |
| Thu | 10 | 70% |
| Fri | 10 | 80% |
| Sat | 10 | 70% |
| Sun | 9 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…