Route
DEN → GTF
Denver International Airport Great Falls International Airport
How punctual is this route?
- On-time arrivals
- 76.9%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 75 min
- Flights arriving 15+ minutes late
- Flights tracked
- 728
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 14%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.7% | 60 |
| October 2025 | 85.5% | 62 |
| November 2025 | 94.9% | 59 |
| December 2025 | 85.5% | 62 |
| January 2026 | 86.9% | 62 |
| February 2026 | 80.0% | 56 |
| March 2026 | 75.4% | 62 |
| April 2026 | 90.0% | 60 |
| May 2026 | 67.7% | 62 |
| June 2026 | 53.3% | 60 |
| July 2026 | 59.0% | 61 |
| August 2026 | 63.9% | 62 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 527 | 73.5% | 0.4% | 74 min |
| SkyWest Airlines | 201 | 85.9% | 1.0% | 75 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO5445
8% late · 111 flights
-
UA1183
12% late · 92 flights
-
UA1354
59% late · 81 flights
-
OO5253
19% late · 74 flights
-
UA723
20% late · 55 flights
-
UA1226
19% late · 53 flights
-
UA2100
13% late · 53 flights
-
UA2128
24% late · 47 flights
-
UA1248
25% late · 24 flights
-
UA1323
42% late · 24 flights
-
UA1889
22% late · 24 flights
-
UA1515
62% late · 21 flights
-
UA2390
10% late · 21 flights
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