OnTimeRoutes
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Southwest Airlines ORD to PHX on-time performance

Southwest Airlines nonstop flights from Chicago to Phoenix · Aug 2025 – Jul 2026

On-time arrivals
60%
arrived < 15 min late
Cancelled
2.3%
10 flights
Avg arrival delay
29 min
69 min when late
Rank on route
#4 of 4
route average 73% on time

Key facts

  • Southwest Airlines flights on ORD to PHX arrived on time 60% of the time in Aug 2025 – Jul 2026.
  • 2.3% were cancelled, and 13% arrived an hour or more late.
  • That ranks #4 of 4 airlines on this route, which averaged 73% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (55%).

On-time trend by month

20%60%100%July 2025: 35.5% on time, 0.0% cancelledJul ’25August 2025: 50.0% on time, 0.0% cancelledAug ’25September 2025: 43.3% on time, 0.0% cancelledSep ’25October 2025: 58.1% on time, 0.0% cancelledOct ’25November 2025: 55.6% on time, 6.9% cancelledNov ’25December 2025: 67.7% on time, 0.0% cancelledDec ’25January 2026: 64.5% on time, 0.0% cancelledJan ’26February 2026: 60.7% on time, 0.0% cancelledFeb ’26March 2026: 59.0% on time, 6.0% cancelledMar ’26April 2026: 60.9% on time, 3.0% cancelledApr ’26May 2026: 65.6% on time, 1.6% cancelledMay ’26June 2026: 100.0% on time, 0.0% cancelledJun ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft55%
  • Airline (crew, maintenance, cleaning, fueling)27%
  • Air traffic control & airport congestion16%
  • Extreme weather1%
  • Security0%

Other airlines on ORD to PHX

Full ORD to PHX comparison →
Southwest Airlines on-time record across all routes →

429 Southwest Airlines flights tracked on this route; 10 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.