United Airlines TYS to ORD on-time performance
United Airlines nonstop flights from Knoxville to Chicago · Aug 2025 – Jul 2026
On-time arrivals
87%
arrived < 15 min late
Cancelled
1.9%
6 flights
Avg arrival delay
12 min
86 min when late
Rank on route
#1 of 5
route average 70% on time
Key facts
- United Airlines flights on TYS to ORD arrived on time 87% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 5 airlines on this route, which averaged 70% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (55%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion55%
- Airline (crew, maintenance, cleaning, fueling)19%
- Late-arriving aircraft14%
- Extreme weather11%
- Security0%
Other airlines on TYS to ORD
- SkyWest Airlines68% on time · 38 min avg delay
- PSA Airlines62% on time · 42 min avg delay
- Envoy Air73% on time · 17 min avg delay
- Republic Airways81% on time · 20 min avg delay
Full TYS to ORD comparison →
United Airlines on-time record across all routes →
312 United Airlines flights tracked on this route; 6 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.