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Airport Reliability

SCK · Stockton

Stockton, CA (SCK)

67%
Departures within 15 minutes
40 min
Average departure delay
79%
Arrivals within 15 minutes
0.9%
Departures cancelled

Based on 560 departures and 560 arrivals. Data through May 2026.

What the data says

Morning-you made the right choice.

Departures from SCK departing between 9 AM–12 PM arrived on time 90% of the time, versus 57% between 12–3 PM.

Thursdays have been rough.

Departures from SCK arrived on time 89% of the time on Saturdays and just 55% on Thursdays. That gap is worth planning around.

Slipping a little lately.

Departures from SCK arrived on time 67% of the time over the last three months in the data, compared with 73% in the three months before that.

When SCK gets messy

On-time by departure window
  • 6–9 AM77%(43 flights)
  • 9 AM–12 PM90%(40 flights)
  • 12–3 PM57%(97 flights)
  • 3–6 PM69%(178 flights)
  • 6–9 PM72%(46 flights)
  • 9 PM–12 AM59%(149 flights)
On-time by weekday
  • Mon69%(116 flights)
  • Tue86%(21 flights)
  • Wed68%(47 flights)
  • Thu55%(84 flights)
  • Fri68%(139 flights)
  • Sat89%(27 flights)
  • Sun61%(119 flights)
On-time trend by month
54%
May

Jun 55% → May 54% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%58
July 202568%56
August 202580%49
September 202557%42
October 202557%54
November 202564%47
December 202573%62
January 202667%43
February 202679%34
March 202681%36
April 202667%33
May 202654%39

Airlines departing SCK

Busiest routes from SCK

Based on 560 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.