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

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

Historically, 75.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 5,177 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
75.8%arrived on time
13.3%30+ min late
0.8%cancelled
5,177scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.6%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+4.8 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning83593.2%3.5%0.7%
Late morning1,15085.1%7.6%0.5%
Afternoon1,46968.8%17.2%0.3%
Evening1,27068.2%18.1%1.0%
Night45363.8%20.1%2.6%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday80773.7%13.9%0.6%
Tuesday70686.4%6.7%0.4%
Wednesday67882.7%10.5%0.6%
Thursday79472.5%16.4%1.1%
Friday80467.7%16.7%1.1%
Saturday56282.7%9.3%0.4%
Sunday82669.2%17.4%1.2%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines3,80775.0%13.9%0.6%
SkyWest Airlines1,18578.3%11.5%1.4%
Alaska Airlines18575.1%13.0%2.7%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202546571.6%16.1%0.4%
August 202544277.6%10.2%0.2%
September 202541680.3%10.8%1.0%
October 202542176.5%14.5%0.0%
November 202544173.7%15.4%3.4%
December 202539869.1%16.8%1.8%
January 202637581.1%9.6%1.3%
February 202638279.1%13.1%0.0%
March 202646980.8%10.9%0.4%
April 202645280.1%9.3%0.4%
May 202646674.0%16.5%0.4%
June 202645066.4%16.2%0.4%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline21.3%
Late aircraft68.2%
National airspace8.5%
Weather1.4%
Security0.7%
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.