Flight profile · SkyWest Airlines
OO5104
Denver (DEN) to Sioux City (SUX) · scheduled 8:05 AM – 6:18 PM
How OO5104 performs
602 operations, 2024-09-26 to 2026-06-30.
OO5104 arrived on time 79.4% of the time, against 81.4% for all DEN → SUX flights — this specific departure is 2.1 percentage points worse than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 2.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 602 operations between 2024-09-26 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO5104 | 79.4% | 1.50% | -10 min | 5.9% | 602 |
| SkyWest Airlines on DEN → SUX | 81.4% | 1.79% | -10 min | 5.2% | 1,230 |
| All DEN → SUX flights | 81.4% | 1.79% | -10 min | 5.2% | 1,230 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-09-26 to 2026-06-30
Other routes OO5104 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 |
|---|---|---|---|
| SUX→DEN Sioux City to Denver | 2025-08-19 – 2026-06-24 | 61 | — |
| DEN→SHR Denver to Sheridan | 2025-12-31 – 2025-12-31 | 1 | — |
| DVL→DEN Devils Lake to Denver | 2025-12-03 – 2025-12-17 | 11 | — |
| SHR→DEN Sheridan to Denver | 2025-11-25 – 2025-12-01 | 6 | — |
| DEN→COD Denver to Cody | 2025-11-27 – 2025-11-27 | 1 | — |
| LAR→DEN Laramie to Denver | 2024-08-19 – 2025-10-24 | 49 | — |
| WYS→DEN West Yellowstone to Denver | 2025-07-06 – 2025-07-06 | 1 | — |
| SLN→ORD Salina to Chicago | 2024-06-27 – 2024-08-18 | 38 | — |
| COD→DEN Cody to Denver | 2024-06-01 – 2024-06-26 | 26 | — |
| DEN→RKS Denver to Rock Springs | 2023-09-29 – 2023-09-30 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route OO5104 currently operates. Blending them would produce an average of two different flights.
Why OO5104 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for OO5104 on DEN → SUX. 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 602 records of OO5104 operating DEN → SUX, 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.
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