Route · GTF → DEN · 2020–2025 BTS data
Great Falls to Denver
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GTF to DEN (Great Falls to Denver) ranks #2686 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 83.1%
- On-time
- +4.1 pts
- vs US avg
- 101 min
- Delay when late
- 4,495
- Flights
- #2686 of 4927
- Corpus placement
Cancelled
1.2%
Best Month
Dec 2024 95%
Worst Month
Jan 2025 71%
Distance
623 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 62 | 7 | 0 | 0 | UA,OO |
| Nov 2025 | 59 | 5 | 0 | 0 | OO,UA |
| Oct 2025 | 62 | 9 | 1 | 0 | OO,UA |
| Sep 2025 | 60 | 9 | 0 | 0 | UA |
| Aug 2025 | 62 | 17 | 1 | 0 | UA |
| Jul 2025 | 62 | 14 | 0 | 2 | UA |
| Jun 2025 | 60 | 17 | 0 | 0 | UA |
| May 2025 | 62 | 13 | 0 | 1 | OO,UA |
| Apr 2025 | 60 | 10 | 0 | 0 | OO |
| Mar 2025 | 62 | 6 | 0 | 1 | OO |
| Feb 2025 | 56 | 14 | 0 | 0 | OO |
| Jan 2025 | 62 | 18 | 0 | 0 | OO,UA |
| Dec 2024 | 62 | 3 | 0 | 0 | OO,UA |
| Nov 2024 | 59 | 11 | 2 | 0 | OO |
| Oct 2024 | 62 | 4 | 0 | 0 | OO |
| Sep 2024 | 60 | 3 | 0 | 0 | OO,UA |
| Aug 2024 | 62 | 7 | 1 | 0 | UA |
| Jul 2024 | 62 | 7 | 4 | 0 | UA |
| Jun 2024 | 60 | 12 | 1 | 0 | UA |
| May 2024 | 62 | 6 | 0 | 0 | OO,UA |
| Apr 2024 | 60 | 5 | 0 | 0 | OO |
| Mar 2024 | 62 | 7 | 2 | 0 | OO |
| Feb 2024 | 58 | 16 | 3 | 0 | OO |
| Jan 2024 | 62 | 10 | 3 | 0 | OO |
GTF–DEN seasonal on-time pattern
Best: March (86.6%) · weakest: February (75.9%)
Strongest calendar month
March
86.6% on-time · ~66 flights/mo
Busiest calendar month
October
~72 flights/mo avg
Weakest calendar month
February
75.9% on-time · ~59 flights/mo
Cancellation Rate
1.2%
18 of 1,460 flights
Diversion Rate
0.3%
4 of 1,460 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
GTF - Great Falls
Full on-time, delay-cause, and seasonal performance for Great Falls, MT.
GTF on-time profileDEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileCompare the two airports
See GTF and DEN side by side on delays, cancellations, and reliability.
Compare GTF vs DENOrigin-hub reliability standing
Mid-pack among GTF departures
From GTF, this corridor sits with 1 other 75–85% on-time routes out of 4 tracked departures, not the hub's reliability leaders (3 at ≥85%) and not the softest ( 0 below 75%). Destination: Denver · fleet on-time rank #1910 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to GTF–DEN.
Routes with a similar on-time rate
What the Data Says About GTF to DEN
Bureau of Transportation Statistics records show Great Falls to Denver (GTF to DEN) running a 83.1% on-time rate over 4,495 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 101.3 minutes. The 623-mile corridor is served by 4 carriers, and over the last 24 months 1.2% of 1,460 flights were cancelled, 0.3% diverted.
The monthly split is wide on this route: Dec 2024 posted the strongest performance at 95% on-time, while Jan 2025 came in at just 71% - a 24-point swing worth factoring into travel timing.
On the multi-year calendar, GTF–DEN peaks in March at 86.6% on-time while October carries the heaviest traffic (~72 flights per month) ; the softest month is February at 75.9%, a 10.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does GTF to DEN rank among US routes by traffic? ▼
How often are flights delayed from GTF to DEN? ▼
What is the cancellation rate for GTF to DEN? ▼
How far is the flight from GTF to DEN? ▼
When is the best time to fly from GTF to DEN? ▼
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 GTF–DEN data
GTF–DEN runs 4.1 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare GTF and DEN airport profiles: delay causes and top routes differ even on the same corridor. GTF airport
- If your dates flex, March (86.6% on-time) beats February (75.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 83.1% 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.