Route · DEN → GTF · 2020–2025 BTS data
Denver to Great Falls
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to GTF (Denver to Great Falls) ranks #2687 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 82%
- On-time
- +3 pts
- vs US avg
- 76 min
- Delay when late
- 4,494
- Flights
- #2687 of 4927
- Corpus placement
Cancelled
1.0%
Best Month
Dec 2024 98%
Worst Month
Jul 2025 58%
Distance
623 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 62 | 9 | 0 | 0 | UA,OO |
| Nov 2025 | 59 | 3 | 0 | 0 | OO,UA |
| Oct 2025 | 62 | 9 | 0 | 0 | OO,UA |
| Sep 2025 | 60 | 11 | 0 | 0 | UA |
| Aug 2025 | 62 | 16 | 1 | 0 | UA |
| Jul 2025 | 62 | 26 | 0 | 0 | UA |
| Jun 2025 | 60 | 24 | 0 | 0 | UA |
| May 2025 | 62 | 15 | 1 | 0 | OO,UA |
| Apr 2025 | 60 | 16 | 2 | 0 | OO |
| Mar 2025 | 62 | 7 | 0 | 0 | OO |
| Feb 2025 | 56 | 14 | 0 | 0 | OO |
| Jan 2025 | 62 | 14 | 0 | 0 | OO,UA |
| Dec 2024 | 62 | 1 | 0 | 0 | OO,UA |
| Nov 2024 | 59 | 9 | 1 | 0 | OO |
| Oct 2024 | 62 | 4 | 0 | 1 | OO |
| Sep 2024 | 60 | 12 | 0 | 0 | OO,UA |
| Aug 2024 | 62 | 13 | 0 | 0 | UA |
| Jul 2024 | 62 | 14 | 2 | 0 | UA |
| Jun 2024 | 60 | 19 | 0 | 0 | UA |
| May 2024 | 62 | 14 | 0 | 0 | OO,UA |
| Apr 2024 | 60 | 8 | 0 | 0 | OO |
| Mar 2024 | 62 | 8 | 1 | 1 | OO |
| Feb 2024 | 58 | 11 | 3 | 1 | OO |
| Jan 2024 | 62 | 12 | 3 | 0 | OO |
DEN–GTF seasonal on-time pattern
Best: November (88.7%) · weakest: June (72.3%)
Strongest calendar month
November
88.7% on-time · ~59 flights/mo
Busiest calendar month
October
~72 flights/mo avg
Weakest calendar month
June
72.3% on-time · ~62 flights/mo
Cancellation Rate
1.0%
14 of 1,460 flights
Diversion Rate
0.2%
3 of 1,460 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileGTF - Great Falls
Full on-time, delay-cause, and seasonal performance for Great Falls, MT.
GTF on-time profileCompare the two airports
See DEN and GTF side by side on delays, cancellations, and reliability.
Compare DEN vs GTFOrigin-hub reliability standing
Mid-pack among DEN departures
From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Great Falls · fleet on-time rank #2343 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to DEN–GTF.
Routes with a similar on-time rate
What the Data Says About DEN to GTF
Bureau of Transportation Statistics records show Denver to Great Falls (DEN to GTF) running a 82% on-time rate over 4,494 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 75.6 minutes. The 623-mile corridor is served by 4 carriers, and over the last 24 months 1.0% of 1,460 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Dec 2024 posted the strongest performance at 98% on-time, while Jul 2025 came in at just 58% - a 40-point swing worth factoring into travel timing.
On the multi-year calendar, DEN–GTF peaks in November at 88.7% on-time while October carries the heaviest traffic (~72 flights per month) ; the softest month is June at 72.3%, a 16.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does DEN to GTF rank among US routes by traffic? ▼
How often are flights delayed from DEN to GTF? ▼
What is the cancellation rate for DEN to GTF? ▼
How far is the flight from DEN to GTF? ▼
When is the best time to fly from DEN to GTF? ▼
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 DEN–GTF data
DEN–GTF runs 3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare DEN and GTF airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
- If your dates flex, November (88.7% on-time) beats June (72.3%) on this corridor. Seasonal chart
- 4 other routes post a similar 82% 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.