OnTimeRoutes
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Southwest Airlines LAX to PHX on-time performance

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

On-time arrivals
74%
arrived < 15 min late
Cancelled
0.8%
17 flights
Avg arrival delay
15 min
51 min when late
Rank on route
#7 of 7
route average 81% on time

Key facts

  • Southwest Airlines flights on LAX to PHX arrived on time 74% of the time in Aug 2025 – Jul 2026.
  • 0.8% were cancelled, and 7% arrived an hour or more late.
  • That ranks #7 of 7 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (58%).

On-time trend by month

50%75%100%July 2025: 76.9% on time, 3.0% cancelledJul ’25August 2025: 85.0% on time, 0.6% cancelledAug ’25September 2025: 78.0% on time, 1.1% cancelledSep ’25October 2025: 73.5% on time, 0.0% cancelledOct ’25November 2025: 72.4% on time, 4.1% cancelledNov ’25December 2025: 77.6% on time, 0.6% cancelledDec ’25January 2026: 88.2% on time, 0.0% cancelledJan ’26February 2026: 74.0% on time, 0.0% cancelledFeb ’26March 2026: 69.8% on time, 2.3% cancelledMar ’26April 2026: 72.1% on time, 0.6% cancelledApr ’26May 2026: 69.0% on time, 0.0% cancelledMay ’26June 2026: 60.9% on time, 0.7% cancelledJun ’26July 2026: 64.9% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft58%
  • Airline (crew, maintenance, cleaning, fueling)27%
  • Air traffic control & airport congestion14%
  • Security0%
  • Extreme weather0%

Other airlines on LAX to PHX

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

2,007 Southwest Airlines flights tracked on this route; 17 cancelled, 1 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.