Southwest Airlines DEN to TYS on-time performance
Southwest Airlines nonstop flights from Denver to Knoxville · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
11 min
41 min when late
Rank on route
#5 of 5
route average 80% on time
Key facts
- Southwest Airlines flights on DEN to TYS arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 5% arrived an hour or more late.
- That ranks #5 of 5 airlines on this route, which averaged 80% on time overall.
- The largest source of delay minutes was late-arriving aircraft (53%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft53%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion15%
- Security0%
- Extreme weather0%
Other airlines on DEN to TYS
- United Airlines81% on time · 12 min avg delay
- SkyWest Airlines79% on time · 13 min avg delay
- Frontier Airlines81% on time · 14 min avg delay
- Allegiant Air82% on time · 11 min avg delay
Full DEN to TYS comparison →
Southwest Airlines on-time record across all routes →
73 Southwest Airlines flights tracked on this route; 0 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.