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

Sacramento, CA (SMF) to San Francisco, CA (SFO) flight delay odds

63.5% of 1,378 official scheduled SMF-to-SFO flights arrived on time; 22.9% arrived at least 30 minutes late and 1.7% 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 SIGNALVariable
63.5%arrived on time
22.9%30+ min late
1.7%cancelled
1,378scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.4%all scheduled flights
120+ minutes late4.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+18.1 mincompleted flights

Which departure time was most reliable for SMF to SFO?

Among qualifying SMF-to-SFO departure window results, Early morning had the highest on-time rate: 89.5% of 389 flights. Evening was lowest at 41.7% across 336 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning38989.5%6.2%0.3%
Late morning36455.5%26.4%2.7%
Afternoon28964.0%25.3%0.7%
Evening33641.7%36.6%3.3%

Which weekday was most reliable for SMF to SFO?

Among qualifying SMF-to-SFO weekday results, Saturday had the highest on-time rate: 74.3% of 183 flights. Monday was lowest at 55.0% across 202 flights.

DayFlightsOn time30+ minCancelled
Monday20255.0%28.2%2.5%
Tuesday19871.7%14.6%1.5%
Wednesday20161.2%26.4%0.5%
Thursday20062.0%23.5%1.5%
Friday20057.0%28.0%2.5%
Saturday18374.3%14.2%1.6%
Sunday19464.4%24.7%2.1%

Which airline was most reliable for SMF to SFO?

Among qualifying SMF-to-SFO airline results, United Airlines had the highest on-time rate: 92.5% of 53 flights. SkyWest Airlines was lowest at 62.3% across 1,325 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,32562.3%23.7%1.8%
United Airlines5392.5%3.8%0.0%

Which month was most reliable for SMF to SFO?

Among qualifying SMF-to-SFO month results, March 2026 had the highest on-time rate: 78.1% of 114 flights. November 2025 was lowest at 48.3% across 118 flights.

MonthFlightsOn time30+ minCancelled
July 202511475.4%15.8%0.9%
August 202511368.1%20.4%0.0%
September 202511865.3%20.3%0.0%
October 202514563.4%19.3%0.0%
November 202511848.3%22.9%10.2%
December 202510664.2%21.7%1.9%
January 202611771.8%18.8%4.3%
February 202611263.4%27.7%0.9%
March 202611478.1%11.4%0.0%
April 202611959.7%32.8%0.8%
May 202611250.9%33.9%1.8%
June 20269051.1%33.3%0.0%

What drove SMF to SFO delay minutes?

National airspace was the largest recorded SMF-to-SFO delay category, accounting for 41.3% of 32,441 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.7%
Late aircraft24.6%
National airspace41.3%
Weather7.5%
Security0.0%
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.