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

San Antonio, TX (SAT) to San Diego, CA (SAN) flight delay odds

78.0% of 610 official scheduled SAT-to-SAN flights arrived on time; 12.8% arrived at least 30 minutes late and 0.3% 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
78.0%arrived on time
12.8%30+ min late
0.3%cancelled
610scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.2%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+4.2 mincompleted flights

Which departure time was most reliable for SAT to SAN?

Among qualifying SAT-to-SAN departure window results, Early morning had the highest on-time rate: 92.6% of 299 flights. Evening was lowest at 62.0% across 276 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning29992.6%3.3%0.0%
Evening27662.0%23.6%0.7%

Which weekday was most reliable for SAT to SAN?

Among qualifying SAT-to-SAN weekday results, Tuesday had the highest on-time rate: 85.4% of 89 flights. Sunday was lowest at 65.6% across 93 flights.

DayFlightsOn time30+ minCancelled
Monday9380.6%10.8%0.0%
Tuesday8985.4%11.2%0.0%
Wednesday8681.4%10.5%0.0%
Thursday9275.0%15.2%0.0%
Friday9176.9%13.2%1.1%
Saturday6683.3%7.6%0.0%
Sunday9365.6%19.4%1.1%

Which airline was most reliable for SAT to SAN?

Only Southwest Airlines met the SAT-to-SAN airline threshold: 78.0% of 610 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines61078.0%12.8%0.3%

Which month was most reliable for SAT to SAN?

Among qualifying SAT-to-SAN month results, February 2026 had the highest on-time rate: 94.7% of 19 flights. January 2026 was lowest at 57.9% across 19 flights.

MonthFlightsOn time30+ minCancelled
July 20256172.1%21.3%0.0%
August 20255786.0%7.0%0.0%
September 20255680.4%14.3%0.0%
October 20255780.7%12.3%0.0%
November 20255682.1%5.4%1.8%
December 20256073.3%11.7%1.7%
January 20261957.9%26.3%0.0%
February 20261994.7%5.3%0.0%
March 20265288.5%3.8%0.0%
April 20265678.6%10.7%0.0%
May 20265775.4%12.3%0.0%
June 20266066.7%25.0%0.0%

What drove SAT to SAN delay minutes?

Late aircraft was the largest recorded SAT-to-SAN delay category, accounting for 50.2% of 6,942 BTS-attributed delay minutes during July 2025–June 2026.

Airline28.9%
Late aircraft50.2%
National airspace16.5%
Weather4.4%
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.