Route · GCC → DEN · 2020–2025 BTS data
Gillette to Denver
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GCC to DEN (Gillette to Denver) ranks #2929 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 84.8%
- On-time
- +5.8 pts
- vs US avg
- 146 min
- Delay when late
- 3,914
- Flights
- #2929 of 4927
- Corpus placement
Cancelled
1.6%
Best Month
Sep 2024 93%
Worst Month
Apr 2025 65%
Distance
313 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 62 | 17 | 1 | 0 | OO |
| Nov 2025 | 60 | 5 | 0 | 0 | OO |
| Oct 2025 | 62 | 9 | 0 | 0 | OO |
| Sep 2025 | 60 | 5 | 0 | 0 | OO |
| Aug 2025 | 62 | 16 | 0 | 1 | OO |
| Jul 2025 | 62 | 12 | 0 | 0 | OO |
| Jun 2025 | 60 | 13 | 0 | 0 | OO |
| May 2025 | 62 | 21 | 0 | 1 | OO |
| Apr 2025 | 60 | 21 | 1 | 0 | OO |
| Mar 2025 | 62 | 8 | 0 | 0 | OO |
| Feb 2025 | 56 | 10 | 6 | 0 | OO |
| Jan 2025 | 62 | 19 | 6 | 0 | OO |
| Dec 2024 | 62 | 11 | 0 | 1 | OO |
| Nov 2024 | 59 | 13 | 1 | 0 | OO |
| Oct 2024 | 62 | 7 | 1 | 0 | OO |
| Sep 2024 | 60 | 4 | 0 | 1 | OO |
| Aug 2024 | 64 | 12 | 0 | 1 | OO |
| Jul 2024 | 62 | 7 | 0 | 0 | OO |
| Jun 2024 | 60 | 10 | 0 | 1 | OO |
| May 2024 | 62 | 5 | 0 | 0 | OO |
| Apr 2024 | 60 | 8 | 1 | 1 | OO |
| Mar 2024 | 62 | 5 | 2 | 0 | OO |
| Feb 2024 | 58 | 6 | 1 | 1 | OO |
| Jan 2024 | 61 | 12 | 3 | 0 | OO |
GCC–DEN seasonal on-time pattern
Best: September (92.2%) · weakest: December (81.0%)
Strongest calendar month
September
92.2% on-time · ~55 flights/mo
Busiest calendar month
July
~65 flights/mo avg
Weakest calendar month
December
81.0% on-time · ~59 flights/mo
Cancellation Rate
1.6%
23 of 1,462 flights
Diversion Rate
0.5%
8 of 1,462 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
GCC - Gillette
Full on-time, delay-cause, and seasonal performance for Gillette, WY.
GCC on-time profileDEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileCompare the two airports
See GCC and DEN side by side on delays, cancellations, and reliability.
Compare GCC vs DENSimilar routes
Other BTS-tracked routes with comparable performance or trip length to GCC–DEN.
Routes with a similar on-time rate
What the Data Says About GCC to DEN
Bureau of Transportation Statistics records show Gillette to Denver (GCC to DEN) running a 84.8% on-time rate over 3,914 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 146.1 minutes. The 313-mile corridor is served by 1 carrier, and over the last 24 months 1.6% of 1,462 flights were cancelled, 0.5% diverted.
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 93% on-time, while Apr 2025 came in at just 65% - a 28-point swing worth factoring into travel timing.
On the multi-year calendar, GCC–DEN peaks in September at 92.2% on-time while July carries the heaviest traffic (~65 flights per month) ; the softest month is December at 81.0%, a 11.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does GCC to DEN rank among US routes by traffic? ▼
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Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using GCC–DEN data
GCC–DEN runs 5.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare GCC and DEN airport profiles: delay causes and top routes differ even on the same corridor. GCC airport
- If your dates flex, September (92.2% on-time) beats December (81.0%) on this corridor. Seasonal chart
- 4 other routes post a similar 84.8% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.