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

San Antonio, TX (SAT) to San Francisco, CA (SFO) flight delay odds

85.3% of 434 official scheduled SAT-to-SFO flights arrived on time; 10.6% arrived at least 30 minutes late and 0.5% 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 SIGNALLower disruption
85.3%arrived on time
10.6%30+ min late
0.5%cancelled
434scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late3.5%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+2.5 mincompleted flights

Which departure time was most reliable for SAT to SFO?

Among qualifying SAT-to-SFO departure window results, Early morning had the highest on-time rate: 88.0% of 308 flights. Afternoon was lowest at 74.2% across 62 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning30888.0%7.8%0.0%
Afternoon6274.2%19.4%3.2%
Evening5882.8%15.5%0.0%

Which weekday was most reliable for SAT to SFO?

Among qualifying SAT-to-SFO weekday results, Tuesday had the highest on-time rate: 92.3% of 65 flights. Sunday was lowest at 79.7% across 69 flights.

DayFlightsOn time30+ minCancelled
Monday6882.4%11.8%1.5%
Tuesday6592.3%6.2%0.0%
Wednesday5390.6%7.5%0.0%
Thursday6583.1%13.8%0.0%
Friday6581.5%12.3%0.0%
Saturday4989.8%8.2%0.0%
Sunday6979.7%13.0%1.4%

Which airline was most reliable for SAT to SFO?

Among qualifying SAT-to-SFO airline results, United Airlines had the highest on-time rate: 89.1% of 110 flights. SkyWest Airlines was lowest at 84.0% across 324 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines32484.0%11.4%0.6%
United Airlines11089.1%8.2%0.0%

Which month was most reliable for SAT to SFO?

Among qualifying SAT-to-SFO month results, September 2025 had the highest on-time rate: 94.3% of 35 flights. February 2026 was lowest at 76.5% across 17 flights.

MonthFlightsOn time30+ minCancelled
July 20253193.5%6.5%0.0%
August 20253193.5%6.5%0.0%
September 20253594.3%2.9%0.0%
October 20255682.1%16.1%0.0%
November 20254989.8%6.1%0.0%
December 20254785.1%8.5%2.1%
February 20261776.5%11.8%0.0%
March 20263491.2%2.9%0.0%
April 20265176.5%17.6%2.0%
May 20264580.0%17.8%0.0%
June 20263083.3%10.0%0.0%

What drove SAT to SFO delay minutes?

Late aircraft was the largest recorded SAT-to-SFO delay category, accounting for 37.4% of 6,568 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.4%
Late aircraft37.4%
National airspace31.3%
Weather0.8%
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.