Southwest Airlines COS to DEN on-time performance
Southwest Airlines nonstop flights from Colorado Springs to Denver · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
0.3%
3 flights
Avg arrival delay
14 min
55 min when late
Rank on route
#2 of 3
route average 81% on time
Key facts
- Southwest Airlines flights on COS to DEN arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 7% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (48%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion48%
- Late-arriving aircraft36%
- Airline (crew, maintenance, cleaning, fueling)15%
- Extreme weather1%
- Security0%
Other airlines on COS to DEN
- SkyWest Airlines83% on time · 14 min avg delay
- United Airlines74% on time · 20 min avg delay
Full COS to DEN comparison →
Southwest Airlines on-time record across all routes →
1,129 Southwest Airlines flights tracked on this route; 3 cancelled, 2 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.