Flight profile · United Airlines
UA1003
Denver (DEN) to Charleston (CHS) · scheduled 9:45 AM – 3:03 PM
How UA1003 performs
679 operations, 2023-10-29 to 2026-06-30.
UA1003 arrived on time 83.2% of the time, against 76.6% for all DEN → CHS flights — this specific departure is 6.6 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 3.3 points better.
Source: US DOT Bureau of Transportation Statistics · 679 operations between 2023-10-29 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1003 | 83.2% | 0.15% | -2 min | 3.4% | 679 |
| United Airlines on DEN → CHS | 79.9% | 0.60% | -2 min | 4.9% | 1,165 |
| All DEN → CHS flights | 76.6% | 0.63% | 0 min | 5.3% | 2,065 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-10-29 to 2026-06-30
Other routes UA1003 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 |
|---|---|---|---|
| MTJ→DEN Montrose to Denver | 2026-01-06 – 2026-06-30 | 155 | 87.0% |
| DEN→JAX Denver to Jacksonville | 2026-05-01 – 2026-05-20 | 20 | — |
| SBA→DEN Santa Barbara to Denver | 2024-08-19 – 2025-12-17 | 424 | 94.3% |
| SFO→DEN San Francisco to Denver | 2024-01-09 – 2024-08-18 | 192 | 97.3% |
| DEN→BTV Denver to Burlington | 2024-05-23 – 2024-05-31 | 8 | — |
| IAH→PBI Houston to West Palm Beach | 2023-12-21 – 2024-01-08 | 19 | — |
| MCO→ORD Orlando to Chicago | 2023-10-01 – 2023-10-28 | 28 | — |
| DFW→EWR Dallas–Fort Worth to Newark | 2023-07-01 – 2023-09-30 | 90 | 91.8% |
Because the same number has served different journeys, the statistics above describe only the route UA1003 currently operates. Blending them would produce an average of two different flights.
Why UA1003 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
screening or terminal security incidents
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA1003 on DEN → CHS. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 679 records of UA1003 operating DEN → CHS, 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.
Full methodology · Report a problem
Analysis last recomputed