United Airlines BIL to DEN on-time performance
United Airlines nonstop flights from Billings to Denver · Aug 2025 – Jul 2026
On-time arrivals
83%
arrived < 15 min late
Cancelled
0.1%
1 flights
Avg arrival delay
13 min
75 min when late
Rank on route
#1 of 2
route average 82% on time
Key facts
- United Airlines flights on BIL to DEN arrived on time 83% of the time in Aug 2025 – Jul 2026.
- 0.1% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 82% on time overall.
- The largest source of delay minutes was late-arriving aircraft (36%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft36%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion28%
- Extreme weather7%
- Security0%
Other airlines on BIL to DEN
- SkyWest Airlines82% on time · 15 min avg delay
Full BIL to DEN comparison →
United Airlines on-time record across all routes →
729 United Airlines flights tracked on this route; 1 cancelled, 3 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.