Southwest Airlines CLE to DEN on-time performance
Southwest Airlines nonstop flights from Cleveland to Denver · Aug 2025 – Jul 2026
On-time arrivals
78%
arrived < 15 min late
Cancelled
0.5%
3 flights
Avg arrival delay
14 min
57 min when late
Rank on route
#2 of 3
route average 82% on time
Key facts
- Southwest Airlines flights on CLE to DEN arrived on time 78% of the time in Aug 2025 – Jul 2026.
- 0.5% were cancelled, and 6% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 82% on time overall.
- The largest source of delay minutes was late-arriving aircraft (43%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft43%
- Air traffic control & airport congestion35%
- Airline (crew, maintenance, cleaning, fueling)18%
- Extreme weather4%
- Security1%
Other airlines on CLE to DEN
- United Airlines87% on time · 10 min avg delay
- Frontier Airlines75% on time · 15 min avg delay
Full CLE to DEN comparison →
Southwest Airlines on-time record across all routes →
604 Southwest Airlines flights tracked on this route; 3 cancelled, 4 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.