Flight profile · SkyWest Airlines
OO5646
Denver (DEN) to Salt Lake City (SLC) · scheduled 8:32 PM – 10:15 PM
How OO5646 performs
138 operations, 2026-02-12 to 2026-06-30.
OO5646 arrived on time 82.6% of the time, against 77.4% for all DEN → SLC flights — this specific departure is 5.2 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 5.3 points better.
Source: US DOT Bureau of Transportation Statistics · 138 operations between 2026-02-12 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO5646 | 82.6% | 0.00% | -8 min | 5.1% | 138 |
| SkyWest Airlines on DEN → SLC | 77.4% | 0.72% | -7 min | 9.2% | 4,145 |
| All DEN → SLC flights | 77.4% | 0.57% | -6 min | 7.2% | 23,667 |
Source: FlyerIntel analysis of US DOT BTS data · 2026-02-12 to 2026-06-30
Other routes OO5646 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 |
|---|---|---|---|
| ORD→TUS Chicago to Tucson | 2026-03-28 – 2026-03-28 | 1 | — |
| RDM→LAX Redmond to Los Angeles | 2026-01-06 – 2026-02-11 | 37 | — |
| SAT→DEN San Antonio to Denver | 2025-12-18 – 2026-01-05 | 17 | — |
| SFO→RNO San Francisco to Reno | 2025-10-26 – 2025-12-17 | 46 | — |
| ORD→BHM Chicago to Birmingham | 2025-10-01 – 2025-10-25 | 25 | — |
| ORD→SBN Chicago to South Bend | 2025-09-02 – 2025-09-24 | 20 | — |
| TUS→DEN Tucson to Denver | 2025-08-19 – 2025-08-19 | 1 | — |
| ORD→ATW Chicago to Appleton | 2023-07-01 – 2025-08-17 | 740 | 74.6% |
Because the same number has served different journeys, the statistics above describe only the route OO5646 currently operates. Blending them would produce an average of two different flights.
Why OO5646 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for OO5646 on DEN → SLC. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on DEN → SLC
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL2544 | Delta Air Lines | 90.7% | 15 min early | 913 |
| DL1581 | Delta Air Lines | 90.5% | 15 min early | 656 |
| OO5665 | SkyWest Airlines | 78.1% | 7 min early | 853 |
| UA1963 | United Airlines | 77.8% | 3 min early | 611 |
| DL2663 | Delta Air Lines | 71.9% | 2 min early | 832 |
| F94251 | Frontier Airlines | 71.8% | 4 min early | 665 |
| OO5762 | SkyWest Airlines | 71.5% | 4 min early | 1,002 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 138 records of OO5646 operating DEN → SLC, 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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