Southwest Airlines PHX to DEN on-time performance
Southwest Airlines nonstop flights from Phoenix to Denver · Aug 2025 – Jul 2026
On-time arrivals
73%
arrived < 15 min late
Cancelled
0.6%
24 flights
Avg arrival delay
16 min
55 min when late
Rank on route
#5 of 6
route average 77% on time
Key facts
- Southwest Airlines flights on PHX to DEN arrived on time 73% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 8% arrived an hour or more late.
- That ranks #5 of 6 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (44%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft44%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion25%
- Extreme weather3%
- Security0%
Other airlines on PHX to DEN
- United Airlines84% on time · 13 min avg delay
- Frontier Airlines80% on time · 19 min avg delay
- American Airlines75% on time · 19 min avg delay
- Envoy Air84% on time · 8 min avg delay
- SkyWest Airlines67% on time · 33 min avg delay
Full PHX to DEN comparison →
Southwest Airlines on-time record across all routes →
3,937 Southwest Airlines flights tracked on this route; 24 cancelled, 11 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.