Flight profile · United Airlines
UA1978
Denver (DEN) to Cincinnati / Covington (CVG) · scheduled 9:45 AM – 2:27 PM
How UA1978 performs
1,074 operations, 2023-07-01 to 2026-06-30.
UA1978 arrived on time 88.1% of the time, against 76.7% for all DEN → CVG flights — this specific departure is 11.4 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 7.9 points better.
Source: US DOT Bureau of Transportation Statistics · 1,074 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1978 | 88.1% | 0.56% | -9 min | 3.1% | 1,074 |
| United Airlines on DEN → CVG | 80.2% | 0.50% | -6 min | 6.5% | 2,186 |
| All DEN → CVG flights | 76.7% | 0.61% | -4 min | 7.3% | 5,108 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA1978 run worse on particular days?
Monday is historically the most reliable day and Saturday the least, a gap of 7.6 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA1978 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 |
|---|---|---|---|
| JAC→DEN Jackson to Denver | 2025-08-19 – 2026-06-30 | 184 | 86.1% |
| MSO→DEN Missoula to Denver | 2025-09-02 – 2025-09-24 | 18 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1978 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,074 records of UA1978 operating DEN → CVG, 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.