Flight profile · United Airlines
UA1479
Denver (DEN) to Louisville (SDF) · scheduled 9:45 AM – 2:19 PM
How UA1479 performs
316 operations, 2025-08-19 to 2026-06-30.
UA1479 arrived on time 89.5% of the time, against 74.0% for all DEN → SDF flights — this specific departure is 15.5 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 11.1 points better.
Source: US DOT Bureau of Transportation Statistics · 316 operations between 2025-08-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1479 | 89.5% | 0.63% | -9 min | 1.6% | 316 |
| United Airlines on DEN → SDF | 78.4% | 0.52% | -3 min | 7.2% | 2,128 |
| All DEN → SDF flights | 74.0% | 0.61% | -1 min | 8.3% | 3,273 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-08-19 to 2026-06-30
Other routes UA1479 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SFO→DEN San Francisco to Denver | 2026-03-05 – 2026-06-30 | 118 | 94.9% |
| SDF→LAX Louisville to Los Angeles | 2026-04-30 – 2026-04-30 | 1 | — |
| SEA→DEN Seattle to Denver | 2025-12-18 – 2026-01-05 | 19 | — |
| ONT→DEN Ontario to Denver | 2025-08-19 – 2025-09-24 | 37 | — |
| DEN→BNA Denver to Nashville | 2025-06-26 – 2025-08-18 | 54 | — |
| SAT→DEN San Antonio to Denver | 2025-06-28 – 2025-07-26 | 5 | — |
| CID→DEN Cedar Rapids to Denver | 2023-07-01 – 2025-06-25 | 723 | 80.8% |
| DEN→COS Denver to Colorado Springs | 2024-10-27 – 2024-12-02 | 36 | — |
| DEN→MSN Denver to Madison | 2024-05-23 – 2024-05-31 | 9 | — |
| CLE→IAD Cleveland to Washington | 2024-01-09 – 2024-01-09 | 1 | — |
| JAX→DEN Jacksonville to Denver | 2023-11-28 – 2023-11-28 | 1 | — |
| DEN→MKE Denver to Milwaukee | 2023-09-29 – 2023-09-30 | 2 | — |
| DEN→SBA Denver to Santa Barbara | 2023-08-01 – 2023-09-04 | 35 | — |
| DEN→PDX Denver to Portland | 2023-07-01 – 2023-07-31 | 31 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1479 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 316 records of UA1479 operating DEN → SDF, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.