BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
SMF→SAN

Sacramento, CA (SMF) to San Diego, CA (SAN) flight delay odds

72.4% of 5,182 official scheduled SMF-to-SAN flights arrived on time; 15.4% arrived at least 30 minutes late and 0.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
72.4%arrived on time
15.4%30+ min late
0.9%cancelled
5,182scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.2%all scheduled flights
120+ minutes late1.6%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+10.5 mincompleted flights

Which departure time was most reliable for SMF to SAN?

Among qualifying SMF-to-SAN departure window results, Early morning had the highest on-time rate: 86.1% of 1,108 flights. Night was lowest at 50.0% across 96 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,10886.1%5.5%0.9%
Late morning1,09578.7%12.9%0.6%
Afternoon1,62168.4%17.6%0.7%
Evening1,26261.7%22.6%1.3%
Night9650.0%28.1%3.1%

Which weekday was most reliable for SMF to SAN?

Among qualifying SMF-to-SAN weekday results, Tuesday had the highest on-time rate: 82.2% of 707 flights. Friday was lowest at 64.1% across 806 flights.

DayFlightsOn time30+ minCancelled
Monday80670.7%16.3%0.9%
Tuesday70782.2%9.1%0.7%
Wednesday67980.0%9.9%1.0%
Thursday79466.8%19.1%1.1%
Friday80664.1%20.6%0.9%
Saturday56480.0%12.1%0.4%
Sunday82667.7%18.4%1.3%

Which airline was most reliable for SMF to SAN?

Among qualifying SMF-to-SAN airline results, Alaska Airlines had the highest on-time rate: 82.7% of 185 flights. Southwest Airlines was lowest at 70.4% across 3,810 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines3,81070.4%17.0%0.6%
SkyWest Airlines1,18777.3%11.9%1.8%
Alaska Airlines18582.7%7.0%3.2%

Which month was most reliable for SMF to SAN?

Among qualifying SMF-to-SAN month results, March 2026 had the highest on-time rate: 80.2% of 469 flights. June 2026 was lowest at 62.4% across 450 flights.

MonthFlightsOn time30+ minCancelled
July 202546571.8%16.6%0.2%
August 202544376.7%14.4%0.0%
September 202541679.1%11.8%1.0%
October 202542471.7%15.6%0.5%
November 202544066.4%20.2%3.9%
December 202539965.2%21.1%1.5%
January 202637574.1%12.0%2.1%
February 202638376.5%12.8%0.0%
March 202646980.2%12.6%0.6%
April 202645276.1%10.6%0.7%
May 202646668.7%16.7%0.6%
June 202645062.4%20.4%0.2%

What drove SMF to SAN delay minutes?

Late aircraft was the largest recorded SMF-to-SAN delay category, accounting for 45.9% of 66,898 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.4%
Late aircraft45.9%
National airspace29.0%
Weather1.5%
Security0.2%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.