United Airlines GTF to DEN on-time performance
United Airlines nonstop flights from Great Falls to Denver · Aug 2025 – Jul 2026
On-time arrivals
83%
arrived < 15 min late
Cancelled
0.9%
5 flights
Avg arrival delay
18 min
107 min when late
Rank on route
#2 of 2
route average 86% on time
Key facts
- United Airlines flights on GTF to DEN arrived on time 83% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 8% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion30%
- Late-arriving aircraft21%
- Extreme weather13%
- Security0%
Other airlines on GTF to DEN
- SkyWest Airlines91% on time · 11 min avg delay
Full GTF to DEN comparison →
United Airlines on-time record across all routes →
527 United Airlines flights tracked on this route; 5 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.