United Airlines BZN to ORD on-time performance
United Airlines nonstop flights from Bozeman to Chicago · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
1.5%
10 flights
Avg arrival delay
19 min
87 min when late
Rank on route
#1 of 4
route average 73% on time
Key facts
- United Airlines flights on BZN to ORD arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 1.5% were cancelled, and 9% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 73% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (56%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion56%
- Late-arriving aircraft24%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather0%
- Security0%
Other airlines on BZN to ORD
- American Airlines66% on time · 34 min avg delay
- SkyWest Airlines71% on time · 17 min avg delay
- Envoy Air76% on time · 18 min avg delay
Full BZN to ORD comparison →
United Airlines on-time record across all routes →
689 United Airlines flights tracked on this route; 10 cancelled, 5 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.