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

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

Historically, 85.6% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,008 flights.

HISTORICAL ROUTE SIGNALLower disruption
85.6%arrived on time
8.5%30+ min late
0.9%cancelled
1,008scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.3%all scheduled flights
120+ minutes late2.1%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival-1.5 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning36493.7%3.0%0.8%
Afternoon35679.5%11.8%0.8%
Evening28883.0%11.5%1.0%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday15288.2%5.3%0.7%
Tuesday15485.7%10.4%0.0%
Wednesday14989.3%8.1%0.0%
Thursday14880.4%12.2%0.0%
Friday15084.7%10.7%0.7%
Saturday10884.3%5.6%2.8%
Sunday14786.4%6.8%2.7%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,00885.6%8.5%0.9%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20258885.2%8.0%0.0%
August 20258285.4%11.0%0.0%
September 20257775.3%15.6%1.3%
October 20258485.7%9.5%0.0%
November 20257885.9%6.4%2.6%
December 20258878.4%11.4%3.4%
January 20268789.7%6.9%1.1%
February 20267885.9%9.0%0.0%
March 20268992.1%3.4%1.1%
April 20268585.9%8.2%1.2%
May 20268691.9%5.8%0.0%
June 20268684.9%8.1%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline36.8%
Late aircraft55.5%
National airspace6.7%
Weather1.0%
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.