Southwest Airlines DEN to PHX on-time performance
Southwest Airlines nonstop flights from Denver to Phoenix · Aug 2025 – Jul 2026
On-time arrivals
72%
arrived < 15 min late
Cancelled
1.0%
41 flights
Avg arrival delay
17 min
56 min when late
Rank on route
#6 of 6
route average 76% on time
Key facts
- Southwest Airlines flights on DEN to PHX arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 8% arrived an hour or more late.
- That ranks #6 of 6 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was late-arriving aircraft (52%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft52%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion12%
- Extreme weather2%
- Security0%
Other airlines on DEN to PHX
- United Airlines81% on time · 12 min avg delay
- Frontier Airlines78% on time · 16 min avg delay
- American Airlines76% on time · 30 min avg delay
- Envoy Air75% on time · 26 min avg delay
- SkyWest Airlines78% on time · 6 min avg delay
Full DEN to PHX comparison →
Southwest Airlines on-time record across all routes →
3,964 Southwest Airlines flights tracked on this route; 41 cancelled, 5 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.