United Airlines ORD to TYS on-time performance
United Airlines nonstop flights from Chicago to Knoxville · Aug 2025 – Jul 2026
On-time arrivals
65%
arrived < 15 min late
Cancelled
1.9%
6 flights
Avg arrival delay
32 min
87 min when late
Rank on route
#4 of 5
route average 67% on time
Key facts
- United Airlines flights on ORD to TYS arrived on time 65% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 16% arrived an hour or more late.
- That ranks #4 of 5 airlines on this route, which averaged 67% on time overall.
- The largest source of delay minutes was late-arriving aircraft (55%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft55%
- Airline (crew, maintenance, cleaning, fueling)22%
- Air traffic control & airport congestion15%
- Extreme weather7%
- Security0%
Other airlines on ORD to TYS
- SkyWest Airlines71% on time · 22 min avg delay
- PSA Airlines60% on time · 56 min avg delay
- Envoy Air75% on time · 13 min avg delay
- Republic Airways81% on time · 14 min avg delay
Full ORD to TYS comparison →
United Airlines on-time record across all routes →
312 United Airlines flights tracked on this route; 6 cancelled, 0 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.