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

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

75.6% of 434 official scheduled SFO-to-SAT flights arrived on time; 15.7% arrived at least 30 minutes late and 0.2% 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
75.6%arrived on time
15.7%30+ min late
0.2%cancelled
434scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.5%all scheduled flights
120+ minutes late3.2%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival+11.2 mincompleted flights

Which departure time was most reliable for SFO to SAT?

Among qualifying SFO-to-SAT departure window results, Late morning had the highest on-time rate: 76.6% of 107 flights. Evening was lowest at 71.1% across 76 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning10776.6%15.9%0.9%
Afternoon18876.6%14.9%0.0%
Evening7671.1%19.7%0.0%

Which weekday was most reliable for SFO to SAT?

Among qualifying SFO-to-SAT weekday results, Saturday had the highest on-time rate: 83.9% of 56 flights. Friday was lowest at 69.0% across 58 flights.

DayFlightsOn time30+ minCancelled
Monday6879.4%10.3%1.5%
Tuesday5678.6%16.1%0.0%
Wednesday6274.2%14.5%0.0%
Thursday6569.2%20.0%0.0%
Friday5869.0%20.7%0.0%
Saturday5683.9%12.5%0.0%
Sunday6975.4%15.9%0.0%

Which airline was most reliable for SFO to SAT?

Among qualifying SFO-to-SAT airline results, United Airlines had the highest on-time rate: 76.1% of 109 flights. SkyWest Airlines was lowest at 75.4% across 325 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines32575.4%15.1%0.3%
United Airlines10976.1%17.4%0.0%

Which month was most reliable for SFO to SAT?

Among qualifying SFO-to-SAT month results, December 2025 had the highest on-time rate: 87.2% of 47 flights. February 2026 was lowest at 61.1% across 18 flights.

MonthFlightsOn time30+ minCancelled
July 20253174.2%16.1%0.0%
August 20253167.7%32.3%0.0%
September 20253585.7%8.6%0.0%
October 20255678.6%14.3%0.0%
November 20254971.4%18.4%0.0%
December 20254787.2%2.1%0.0%
February 20261861.1%22.2%0.0%
March 20263381.8%15.2%0.0%
April 20265273.1%15.4%1.9%
May 20264575.6%11.1%0.0%
June 20263063.3%26.7%0.0%

What drove SFO to SAT delay minutes?

Airline was the largest recorded SFO-to-SAT delay category, accounting for 45.4% of 7,357 BTS-attributed delay minutes during July 2025–June 2026.

Airline45.4%
Late aircraft30.7%
National airspace17.7%
Weather6.2%
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.