OnTimeRoutes
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SkyWest Airlines SJC to SAN on-time performance

SkyWest Airlines nonstop flights from San Jose to San Diego · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.

On-time arrivals
75%
arrived < 15 min late
Cancelled
1.4%
16 flights
Avg arrival delay
13 min
49 min when late
Rank on route
#2 of 4
route average 71% on time

Key facts

  • SkyWest Airlines flights on SJC to SAN arrived on time 75% of the time in Aug 2025 – Jul 2026.
  • 1.4% were cancelled, and 6% arrived an hour or more late.
  • That ranks #2 of 4 airlines on this route, which averaged 71% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (38%).

On-time trend by month

50%75%100%July 2025: 83.3% on time, 0.0% cancelledJul ’25August 2025: 76.9% on time, 0.0% cancelledAug ’25September 2025: 84.2% on time, 1.3% cancelledSep ’25October 2025: 74.0% on time, 1.9% cancelledOct ’25November 2025: 74.6% on time, 3.4% cancelledNov ’25December 2025: 66.7% on time, 3.2% cancelledDec ’25January 2026: 74.1% on time, 3.6% cancelledJan ’26February 2026: 90.0% on time, 2.4% cancelledFeb ’26March 2026: 79.1% on time, 0.0% cancelledMar ’26April 2026: 82.5% on time, 0.0% cancelledApr ’26May 2026: 72.3% on time, 0.0% cancelledMay ’26June 2026: 72.9% on time, 0.0% cancelledJun ’26July 2026: 64.9% on time, 1.8% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion38%
  • Late-arriving aircraft30%
  • Airline (crew, maintenance, cleaning, fueling)28%
  • Extreme weather4%
  • Security0%

Other airlines on SJC to SAN

Full SJC to SAN comparison →
SkyWest Airlines on-time record across all routes →

1,159 SkyWest Airlines flights tracked on this route; 16 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.