Flight OddsUA4188 SDF → ORD
United Airlines · Louisville, KY to Chicago, IL · 55 flights observed, 2025-12-02 to 2026-02-09 · 286 mi
UA4188 covers more than one route in the data window — the stats below are for SDF → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-6 min
90th percentile
+32 min
Cancellation rate
4%
How often is UA4188 on time?
Across 55 flights on SDF → ORD from 2025-12-02 to 2026-02-09, UA4188 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +32 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 42 | 79% |
| 16-30 min | 5 | 9% |
| 31-60 min | 2 | 4% |
| 61-120 min | 3 | 6% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 26 | 69% | +3 min |
| 2026-01 | 20 | 90% | +0 min |
| 2026-02 | 7 | 86% | +53 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 78% |
| Tue | 5 | 80% |
| Wed | 5 | 80% |
| Thu | 8 | 88% |
| Fri | 10 | 70% |
| Sat | 8 | 88% |
| Sun | 8 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…