Flight profile · SkyWest Airlines
OO5564
Gillette (GCC) to Denver (DEN) · scheduled 7:10 AM – 8:40 AM
How OO5564 performs
122 operations, 2026-01-06 to 2026-06-30.
OO5564 arrived on time 88.5% of the time, against 83.1% for all GCC → DEN flights — this specific departure is 5.4 percentage points better than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 5.4 points better.
Source: US DOT Bureau of Transportation Statistics · 122 operations between 2026-01-06 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO5564 | 88.5% | 0.00% | -9 min | 5.7% | 122 |
| SkyWest Airlines on GCC → DEN | 83.1% | 1.45% | -11 min | 8.6% | 2,135 |
| All GCC → DEN flights | 83.1% | 1.45% | -11 min | 8.6% | 2,135 |
Source: FlyerIntel analysis of US DOT BTS data · 2026-01-06 to 2026-06-30
Other routes OO5564 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→LAX Salt Lake City to Los Angeles | 2026-05-21 – 2026-05-21 | 1 | — |
| MFE→IAH McAllen to Houston | 2026-04-30 – 2026-05-20 | 18 | — |
| ORD→SAV Chicago to Savannah | 2026-05-05 – 2026-05-19 | 3 | — |
| ORD→OKC Chicago to Oklahoma City | 2026-03-29 – 2026-04-29 | 28 | — |
| SFO→PDX San Francisco to Portland | 2025-12-20 – 2026-01-03 | 3 | — |
| ORD→SBN Chicago to South Bend | 2023-07-01 – 2025-12-17 | 716 | 70.5% |
| LAX→SMF Los Angeles to Sacramento | 2025-09-25 – 2025-10-21 | 26 | — |
| PSP→SFO Palm Springs to San Francisco | 2025-05-01 – 2025-05-21 | 18 | — |
| IAH→DFW Houston to Dallas–Fort Worth | 2025-05-04 – 2025-05-18 | 3 | — |
| IAH→LIT Houston to Little Rock | 2025-04-07 – 2025-04-30 | 24 | — |
| DEN→FAR Denver to Fargo | 2025-03-06 – 2025-03-28 | 14 | — |
| DCA→ORD Washington to Chicago | 2025-01-12 – 2025-02-09 | 5 | — |
| ORD→SGF Chicago to Springfield | 2024-09-01 – 2024-09-30 | 30 | — |
| SCE→ORD State College to Chicago | 2023-09-22 – 2023-09-24 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route OO5564 currently operates. Blending them would produce an average of two different flights.
Why OO5564 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
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for OO5564 on GCC → DEN. 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 GCC → DEN
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| OO5078 | SkyWest Airlines | 87.1% | 13 min early | 808 |
| OO5038 | SkyWest Airlines | 81.1% | 12 min early | 610 |
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 122 records of OO5564 operating GCC → DEN, 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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