Flight OddsUA4052 IAH → SDF
United Airlines · Houston, TX to Louisville, KY · 171 flights observed, 2025-12-18 to 2026-06-30 · 788 mi
UA4052 covers more than one route in the data window — the stats below are for IAH → SDF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-12 min
90th percentile
+40 min
Cancellation rate
1%
How often is UA4052 on time?
Across 171 flights on IAH → SDF from 2025-12-18 to 2026-06-30, UA4052 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +40 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 146 | 86% |
| 16-30 min | 4 | 2% |
| 31-60 min | 9 | 5% |
| 61-120 min | 7 | 4% |
| 2+ hrs | 4 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 93% | -3 min |
| 2026-01 | 30 | 90% | -8 min |
| 2026-02 | 28 | 89% | -1 min |
| 2026-03 | 7 | 100% | -20 min |
| 2026-04 | 30 | 77% | +8 min |
| 2026-05 | 31 | 84% | +3 min |
| 2026-06 | 30 | 83% | +27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 25 | 88% |
| Tue | 25 | 88% |
| Wed | 24 | 88% |
| Thu | 24 | 88% |
| Fri | 24 | 83% |
| Sat | 23 | 78% |
| Sun | 25 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…