Airport · GTF · Great Falls, Montana
Great Falls, MT
Great Falls, MT posts top-10% on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 29,395 flights (2020–2025); its biggest delay driver is carrier.
Data updated 2026-06-13
- 88.3%
- On-time
- Top 8%
- on-time, US airports
- 89 min
- Delay when late
- 0.60%
- Cancelled
Key Performance Metrics
Total Flights
29,395
Best Month
Mar 95.8%
Worst Month
Feb 93.2%
Delayed
3,436
Cancelled
176
GTF on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where GTF sits among all 382 tracked airports
GTF's 88.3% on-time rate falls in the 85-90% band, the 116-airport band it shares.
National on-time-rate distribution
- 60-65% 1
1 airport between 60% and 65% on-time
1 airports
- 65-70% 4
4 airports between 65% and 70% on-time
4 airports
- 70-75% 9
9 airports between 70% and 75% on-time
9 airports
- 75-80% 48
48 airports between 75% and 80% on-time
48 airports
- 80-85%
192 airports between 80% and 85% on-time
192 airports
- 85-90%
116 airports between 85% and 90% on-time
116 airports
- 90-95% 12
12 airports between 90% and 95% on-time
12 airports
What this shows GTF is marked in the 85-90% band.
Delay Cause Breakdown
Top delay cause: Carrier. Total delay minutes: 169,867.
GTF - seasonal on-time pattern
Best: March (95.8%) · worst: February (93.2%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: March (95.8% on-time). Most delays: February (93.2% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 392 | 54 | 4 | 93.5% |
| November | 368 | 35 | 2 | 95.3% |
| October | 416 | 44 | 2 | 94.7% |
| September | 427 | 43 | 1 | 95.2% |
| August | 451 | 49 | 1 | 95.3% |
| July | 436 | 61 | 3 | 94.5% |
| June | 386 | 52 | 1 | 94.4% |
| May | 396 | 44 | 2 | 94.8% |
| April | 404 | 40 | 4 | 95.1% |
| March | 447 | 43 | 6 | 95.8% |
| February | 383 | 56 | 2 | 93.2% |
| January | 395 | 53 | 3 | 93.8% |
Year-Over-Year Performance
Annual flight volume and on-time trends at GTF.
GTF - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 4,887 | 265 | 8 | 94.6% |
| 2024 | 4,872 | 241 | 17 | 95.1% |
| 2023 | 5,165 | 268 | 15 | 94.8% |
| 2022 | 4,580 | 320 | 31 | 93% |
| 2021 | 6,140 | 316 | 49 | 94.9% |
| 2020 | 3,751 | 158 | 56 | 95.8% |
Cancellation & Diversion Analysis
Flight disruption statistics for Great Falls, MT.
Cancellation Rate
0.60%
176 of 29,395 flights
Diversion Rate
0.12%
35 of 29,395 flights
Delay Rate
11.7%
3,436 of 29,395 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Dec 2025 | 352 | 20 | 17 | 1 | 0 |
| Nov 2025 | 328 | 14 | 11 | 5 | 0 |
| Oct 2025 | 350 | 18 | 18 | 1 | 0 |
| Sep 2025 | 391 | 18 | 24 | 0 | 0 |
| Aug 2025 | 422 | 27 | 31 | 1 | 1 |
| Jul 2025 | 414 | 21 | 39 | 0 | 2 |
| Jun 2025 | 426 | 29 | 36 | 0 | 0 |
| May 2025 | 446 | 28 | 34 | 0 | 1 |
| Apr 2025 | 432 | 22 | 34 | 0 | 0 |
| Mar 2025 | 468 | 13 | 14 | 0 | 1 |
| Feb 2025 | 416 | 30 | 33 | 0 | 0 |
| Jan 2025 | 442 | 25 | 37 | 0 | 0 |
| Dec 2024 | 406 | 19 | 28 | 0 | 1 |
| Nov 2024 | 380 | 17 | 22 | 2 | 0 |
| Oct 2024 | 388 | 17 | 6 | 0 | 0 |
| Sep 2024 | 360 | 12 | 17 | 0 | 0 |
| Aug 2024 | 386 | 12 | 30 | 1 | 0 |
| Jul 2024 | 388 | 15 | 30 | 4 | 0 |
| Jun 2024 | 382 | 18 | 45 | 1 | 1 |
| May 2024 | 420 | 20 | 31 | 0 | 0 |
| Apr 2024 | 446 | 19 | 17 | 0 | 0 |
| Mar 2024 | 460 | 22 | 23 | 2 | 0 |
| Feb 2024 | 422 | 28 | 21 | 3 | 0 |
| Jan 2024 | 434 | 42 | 41 | 4 | 0 |
Top Routes from GTF
Busiest routes to and from Great Falls, MT.
| Route | Flights | On-Time | Distance |
|---|---|---|---|
| GTF (Great Falls) → SLC (Salt Lake City) | 5,902 | 91.9% | 463 mi |
| SLC (Salt Lake City) → GTF (Great Falls) | 5,872 | 92.6% | 463 mi |
| GTF (Great Falls) → DEN (Denver) | 4,495 | 83.1% | 623 mi |
| DEN (Denver) → GTF (Great Falls) | 4,494 | 82% | 623 mi |
| GTF (Great Falls) → SEA (Seattle) | 1,214 | 85.7% | 512 mi |
| SEA (Seattle) → GTF (Great Falls) | 1,214 | 87.8% | 512 mi |
| GTF (Great Falls) → MSP (Minneapolis) | 1,195 | 92.6% | 887 mi |
| MSP (Minneapolis) → GTF (Great Falls) | 1,195 | 85.3% | 887 mi |
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Great Falls, MT's 88.3%.
Other Airports in Montana
Compare performance with other Montana airports.
Bozeman, MT
Bozeman · 117,386 flights
Missoula, MT
Missoula · 52,758 flights
Billings, MT
Billings · 51,010 flights
Kalispell, MT
Kalispell · 50,123 flights
Helena, MT
Helena · 17,569 flights
Butte, MT
Butte · 8,024 flights
West Yellowstone, MT
West Yellowstone · 3,872 flights
Keep exploring
More flight data around Great Falls, MT.
Montana flight data
Statewide on-time and delay aggregates, plus every reporting airport in Montana.
View MT data →Airport rankings
See where GTF sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put GTF head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About GTF
Great Falls, MT in Great Falls, Montana handled 29,395 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 88.3% on-time departure rate. Of those flights, 3,436 experienced delays, 176 were cancelled, and 35 were diverted. The cancellation rate works out to 0.60%, the diversion rate to 0.12%, and the average delay when departures run late is 88.5 minutes. These figures are the baseline for comparing GTF against other airports in the same state and nationally.
Breaking down what drives delays at GTF, Carrier leads the pack. Carrier accounts for 48.2% of total delay minutes, followed by Late Aircraft at 20.8% and Weather at 17.1%. Weather contributes 17.1% of delay minutes at this airport, while security holds the smallest share at 0.0%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, March runs the cleanest at GTF with a 95.8% on-time rate, while February is the roughest at 93.2% - a 3-point swing between best and worst month. Volume peaks in August, when average flights hit 451. The busiest route connecting GTF is to SLC (Salt Lake City), with 5,902 flights at a 91.9% on-time rate. Combine these numbers - 88.3% on-time, 88.5-minute average delay, 0.60% cancellation rate, and you have a concrete picture of departure reliability at Great Falls, MT.
Frequently Asked Questions
What is the on-time performance rate at Great Falls, MT (GTF)? ▼
What is the most common cause of delays at GTF? ▼
What is the average delay time at GTF? ▼
What is the best month to fly from GTF? ▼
What is the worst month for delays at GTF? ▼
How many routes operate from GTF? ▼
What is the cancellation rate at GTF? ▼
Flight Guides
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Read our methodology - how this data is sourced, computed, and verified.
Using GTF's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from GTF before you book a connection. See top routes
- Travel in March rather than February if your dates are flexible. Seasonal patterns
- Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Related
Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.