Southwest Airlines MKE to PHX on-time performance
Southwest Airlines nonstop flights from Milwaukee to Phoenix · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
0.4%
4 flights
Avg arrival delay
13 min
54 min when late
Rank on route
#1 of 3
route average 79% on time
Key facts
- Southwest Airlines flights on MKE to PHX arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 0.4% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 79% 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)26%
- Air traffic control & airport congestion19%
- Extreme weather3%
- Security0%
Other airlines on MKE to PHX
- American Airlines78% on time · 24 min avg delay
- Frontier Airlines50% on time · 30 min avg delay
Full MKE to PHX comparison →
Southwest Airlines on-time record across all routes →
962 Southwest Airlines flights tracked on this route; 4 cancelled, 3 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.