Flight profile · SkyWest Airlines
OO4230
Grand Junction (GJT) to Salt Lake City (SLC) · scheduled 6:00 AM – 7:02 AM
How OO4230 performs
574 operations, 2024-12-04 to 2026-06-30.
OO4230 arrived on time 96.9% of the time, against 93.7% for all GJT → SLC flights — this specific departure is 3.1 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 3.1 points better.
Source: US DOT Bureau of Transportation Statistics · 574 operations between 2024-12-04 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4230 | 96.9% | 0.17% | -15 min | 1.0% | 574 |
| SkyWest Airlines on GJT → SLC | 93.7% | 0.11% | -13 min | 1.6% | 944 |
| All GJT → SLC flights | 93.7% | 0.11% | -13 min | 1.6% | 944 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-12-04 to 2026-06-30
Other routes OO4230 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 |
|---|---|---|---|
| SLC→WYS Salt Lake City to West Yellowstone | 2023-07-01 – 2024-07-07 | 101 | 85.3% |
| WYS→SLC West Yellowstone to Salt Lake City | 2023-07-01 – 2024-07-07 | 101 | 86.7% |
Because the same number has served different journeys, the statistics above describe only the route OO4230 currently operates. Blending them would produce an average of two different flights.
Why OO4230 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for OO4230 on GJT → SLC. 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 574 records of OO4230 operating GJT → 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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