United Airlines ORD to BZN on-time performance
United Airlines nonstop flights from Chicago to Bozeman · Aug 2025 – Jul 2026
On-time arrivals
72%
arrived < 15 min late
Cancelled
1.0%
7 flights
Avg arrival delay
21 min
69 min when late
Rank on route
#1 of 4
route average 69% on time
Key facts
- United Airlines flights on ORD to BZN arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 9% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 69% on time overall.
- The largest source of delay minutes was late-arriving aircraft (49%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft49%
- Airline (crew, maintenance, cleaning, fueling)24%
- Air traffic control & airport congestion22%
- Extreme weather4%
- Security0%
Other airlines on ORD to BZN
- American Airlines65% on time · 24 min avg delay
- SkyWest Airlines72% on time · 19 min avg delay
- Envoy Air55% on time · 15 min avg delay
Full ORD to BZN comparison →
United Airlines on-time record across all routes →
689 United Airlines flights tracked on this route; 7 cancelled, 2 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.