Best time to fly out of Northeast Wyoming (GCC)
The early-flight folk wisdom holds up at Northeast Wyoming: departures in the Before 6am band left on time 90.4% of the time, against 81.3% in the 2–4pm band. These are historical odds, not forecasts. The records say what happened on this schedule over three years; they know nothing about tomorrow’s thunderstorm.
Data through June 2026 · Bureau of Transportation Statistics
On-time rate by hour and day
On this page, “on time” means a departure that pushed back less than 15 minutes behind its scheduled time — the Bureau of Transportation Statistics definition, and the one airlines are held to.
| Departure time | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| Before 6am | 89 | 92 | 90 | 89 | 92 | 92 | 88 |
| 6–8am | – | – | – | – | – | – | – |
| 8–10am | – | – | – | – | – | – | – |
| 10am–12pm | – | – | – | – | – | – | – |
| 12–2pm | – | – | – | – | – | – | – |
| 2–4pm | 83 | 80 | 82 | 80 | 88 | 84 | 71 |
| 4–6pm | – | – | – | – | – | – | – |
| 6–8pm | – | – | – | – | – | – | – |
| 8–10pm | – | – | – | – | – | – | – |
| 10pm–12am | – | – | – | – | – | – | – |
The steadiest stretch at GCC was Before 6am — 90.4% of departures left on time across 904 flights. The weakest was 2–4pm at 81.3%.
The year at GCC
January was the hard month at GCC: 77.3% of departures left on time, across 185 flights. September was the easy one at 91.9%. Each month pools three years of that month, so a single bad week does not decide it.
| Month | Share departures that left on time | Flights |
|---|---|---|
| January | 77.3% | 185 |
| February | 88.3% | 170 |
| March | 89.9% | 213 |
| April | 82.7% | 135 |
| May | 84.6% | 156 |
| June | 85.6% | 208 |
| July | 88.2% | 178 |
| August | 84.8% | 178 |
| September | 91.9% | 172 |
| October | 87.8% | 177 |
| November | 87.6% | 178 |
| December | 83.2% | 185 |
Airlines at GCC
Every airline with at least 100 departures from GCC, busiest first. These are that airline’s departures from this airport only — its record across the country sits on its own page.
| Airline | Left on time | Typical delay | Cancelled | Departures |
|---|---|---|---|---|
| SkyWest Airlines | 86.1% | 151 min | 1.5% | 2,135 |
What delays out of GCC were put down to
Airlines file a reason with every arrival running 15 minutes late or more. Across 353 flights that departed GCC and ran 15 minutes late or more, the delay minutes break down with 54.8% put down to airline operations and 22.4% to late-arriving aircraft.
- Late-arriving aircraft 22.4%
- Airline operations 54.8%
- Air traffic & airport volume 14.1%
- Severe weather 8.5%
- Security 0.1%
Late-arriving aircraft is the knock-on category: the plane came in late, so it went out late again. It is why a 7am problem in Newark is still a problem in Denver at dinnertime, and why it is usually the biggest slice on the bar.
If you are connecting through GCC
Of 2,136 scheduled arrivals into GCC, 80.8% reached the gate less than 15 minutes behind schedule. Of the 373 arrivals that ran late, 49.1% were no more than 45 minutes behind — which is the difference between a tight connection and a new boarding pass.
Work out a specific layover — pick the airport and the minutes you have, and the tool reads the same arrival records back as a share.
Busiest routes out of GCC
Ranked by flights, with the share that arrived on time at the far end. Where a route carries enough flights for a page of its own the chip goes there; otherwise it goes to the destination airport.
- DEN 83.1% on time · 2,135 flights
GCC in one number
Northeast Wyoming (GCC)
Rank 274 of 363 US airports by departures. Steadiest stretch of the day: Before 6am. Hardest month: January.
Questions about GCC
- What is the best time of day to fly out of Northeast Wyoming?
- Before 6am. Departures in that band left on time 90.4% of the time across 904 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 2–4pm band was the weakest at 81.3%.
- What is the worst month to fly out of GCC?
- January: 77.3% of the departures that flew left on time, with 185 scheduled. September was the other end of the year at 91.9%. Each figure pools three years of that calendar month.
- How often are flights cancelled at GCC?
- 1.5% of scheduled departures were cancelled over July 2023 through June 2026. Cancellations are counted against everything scheduled, not against everything that flew — a rate that looks small still adds up to real people in a rebooking line.