Southwest Airlines MDW to PHX on-time performance
Southwest Airlines nonstop flights from Chicago to Phoenix · Aug 2025 – Jul 2026
On-time arrivals
76%
arrived < 15 min late
Cancelled
1.6%
43 flights
Avg arrival delay
14 min
52 min when late
Rank on route
#2 of 2
route average 76% on time
Key facts
- Southwest Airlines flights on MDW to PHX arrived on time 76% of the time in Aug 2025 – Jul 2026.
- 1.6% were cancelled, and 7% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was late-arriving aircraft (42%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft42%
- Airline (crew, maintenance, cleaning, fueling)38%
- Air traffic control & airport congestion16%
- Extreme weather3%
- Security1%
Other airlines on MDW to PHX
- Frontier Airlines78% on time · 35 min avg delay
Full MDW to PHX comparison →
Southwest Airlines on-time record across all routes →
2,620 Southwest Airlines flights tracked on this route; 43 cancelled, 8 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.