OnTimeRoutes
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Southwest Airlines SAN to PHX on-time performance

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

On-time arrivals
73%
arrived < 15 min late
Cancelled
1.4%
46 flights
Avg arrival delay
15 min
50 min when late
Rank on route
#3 of 5
route average 74% on time

Key facts

  • Southwest Airlines flights on SAN to PHX arrived on time 73% of the time in Aug 2025 – Jul 2026.
  • 1.4% were cancelled, and 7% arrived an hour or more late.
  • That ranks #3 of 5 airlines on this route, which averaged 74% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (66%).

On-time trend by month

50%75%100%July 2025: 78.7% on time, 1.5% cancelledJul ’25August 2025: 76.5% on time, 0.4% cancelledAug ’25September 2025: 77.0% on time, 3.9% cancelledSep ’25October 2025: 70.0% on time, 1.0% cancelledOct ’25November 2025: 66.4% on time, 6.8% cancelledNov ’25December 2025: 77.1% on time, 1.5% cancelledDec ’25January 2026: 78.4% on time, 1.6% cancelledJan ’26February 2026: 80.7% on time, 0.8% cancelledFeb ’26March 2026: 78.2% on time, 0.4% cancelledMar ’26April 2026: 73.8% on time, 0.0% cancelledApr ’26May 2026: 74.1% on time, 0.4% cancelledMay ’26June 2026: 62.8% on time, 0.4% cancelledJun ’26July 2026: 64.5% on time, 0.4% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft66%
  • Airline (crew, maintenance, cleaning, fueling)21%
  • Air traffic control & airport congestion12%
  • Extreme weather0%
  • Security0%

Other airlines on SAN to PHX

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

3,197 Southwest Airlines flights tracked on this route; 46 cancelled, 4 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.