Flight OddsUA4040 SDF → IAH
United Airlines · Louisville, KY to Houston, TX · 17 flights observed, 2026-03-05 to 2026-03-27 · 788 mi
UA4040 covers more than one route in the data window — the stats below are for SDF → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
93%
Median delay
-28 min
90th percentile
-11 min
Cancellation rate
18%
How often is UA4040 on time?
Across 17 flights on SDF → IAH from 2026-03-05 to 2026-03-27, UA4040 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -28 min, and the worst 10% of flights arrived -11 min or later. 18% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 13 | 93% |
| 16-30 min | 1 | 7% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 14 | 93% | -26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 100% |
| Tue | No data | — |
| Wed | 3 | 100% |
| Thu | 3 | 100% |
| Fri | 4 | 100% |
| Sat | No data | — |
| Sun | 2 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…