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

Salt Lake City, UT (SLC) to San Antonio, TX (SAT) flight delay odds

83.3% of 1,007 official scheduled SLC-to-SAT flights arrived on time; 8.7% arrived at least 30 minutes late and 0.8% 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
83.3%arrived on time
8.7%30+ min late
0.8%cancelled
1,007scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.1%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+2.7 mincompleted flights

Which departure time was most reliable for SLC to SAT?

Among qualifying SLC-to-SAT departure window results, Afternoon had the highest on-time rate: 85.3% of 279 flights. Evening was lowest at 80.2% across 364 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning36484.9%6.3%0.5%
Afternoon27985.3%6.5%0.7%
Evening36480.2%12.9%1.1%

Which weekday was most reliable for SLC to SAT?

Among qualifying SLC-to-SAT weekday results, Monday had the highest on-time rate: 87.5% of 152 flights. Thursday was lowest at 80.4% across 148 flights.

DayFlightsOn time30+ minCancelled
Monday15287.5%5.9%0.7%
Tuesday15486.4%5.2%0.0%
Wednesday14983.9%13.4%0.0%
Thursday14880.4%11.5%0.0%
Friday14980.5%9.4%0.7%
Saturday10783.2%5.6%2.8%
Sunday14881.1%9.5%2.0%

Which airline was most reliable for SLC to SAT?

Only Delta Air Lines met the SLC-to-SAT airline threshold: 83.3% of 1,007 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,00783.3%8.7%0.8%

Which month was most reliable for SLC to SAT?

Among qualifying SLC-to-SAT month results, October 2025 had the highest on-time rate: 92.9% of 84 flights. July 2025 was lowest at 72.7% across 88 flights.

MonthFlightsOn time30+ minCancelled
July 20258872.7%14.8%0.0%
August 20258286.6%7.3%0.0%
September 20257783.1%7.8%1.3%
October 20258492.9%3.6%0.0%
November 20257882.1%14.1%1.3%
December 20258782.8%8.0%3.4%
January 20268778.2%10.3%1.1%
February 20267882.1%11.5%0.0%
March 20268991.0%3.4%1.1%
April 20268580.0%11.8%1.2%
May 20268683.7%8.1%0.0%
June 20268684.9%4.7%0.0%

What drove SLC to SAT delay minutes?

Airline was the largest recorded SLC-to-SAT delay category, accounting for 69.7% of 10,258 BTS-attributed delay minutes during July 2025–June 2026.

Airline69.7%
Late aircraft18.4%
National airspace8.7%
Weather3.3%
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.