Northeast Wyoming Regional (GCC) Delays and On-Time Departures
Gillette, WY · ranked 35th of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
86.0% of the 726 flights scheduled to depart Gillette (GCC) in the last 12 months left on time, 8.5 points above the US average of 77.4%.
That ranks 35th of 333 US airports tracked on this site, with 0.7% of departures cancelled.
Over 24 months, Saturday was the most reliable day (88% on time) and January the worst month (74%).
Best time of day to fly out of Gillette (GCC)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 88.1% | 1.5% | 522 |
| 7am–8am | 94.1% | 0.0% | 153 |
| 8am–9am | Limited data | 1 | |
| 10am–11am | 89.2% | 0.0% | 65 |
| 11am–12pm | Limited data | 2 | |
| 1pm–2pm | 77.5% | 1.3% | 153 |
| 2pm–3pm | 78.1% | 1.5% | 529 |
| 5pm–6pm | 83.3% | 6.2% | 32 |
Airlines at GCC ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| SkyWest Airlines | 86.0% | 82.9% | 0.7% | 726 |
80%+ good 70–79.9% fair <70% poor
Best day to fly out of GCC
On-time departures by day, 24 months.
Best month to fly out of GCC
On-time departures by month, 24 months.
Holiday travel at Gillette (GCC)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 27 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 78.3% | -6.0 pts | 0.0% | 60 |
| Summer peak (Jun 15 - Aug 15) | 83.9% | -0.4 pts | 0.0% | 280 |
| All other days | 84.3% | — | 1.8% | 1,090 |
Monthly on-time departure trend at GCC
On-time departure % each month, with the 12-month US average for reference.
Routes from Gillette (GCC)
Every route from GCC with its own page, by number of flights (last 12 months, on-time arrivals).
| To | On time | Cancelled | Flights |
|---|---|---|---|
| GCC → Denver (DEN) | 82.9% | 0.7% | 726 |