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

San Antonio, TX (SAT) to Denver, CO (DEN) flight delay odds

Historically, 80.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 3,027 flights.

HISTORICAL ROUTE SIGNALLower disruption
80.3%arrived on time
12.6%30+ min late
0.4%cancelled
3,027scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.6%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+5.0 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 morning89889.6%5.9%0.9%
Late morning40787.2%6.6%0.7%
Afternoon1,16977.8%14.1%0.1%
Evening55365.6%24.8%0.2%

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
Monday45478.9%14.5%0.0%
Tuesday41080.7%11.5%0.5%
Wednesday39081.8%11.5%0.0%
Thursday46378.8%14.0%0.9%
Friday46079.6%13.9%0.7%
Saturday41181.8%11.4%0.5%
Sunday43981.3%10.9%0.5%

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
Southwest Airlines1,43280.2%12.2%0.3%
United Airlines1,20780.8%12.7%0.6%
Frontier Airlines37078.9%14.6%0.5%
SkyWest Airlines1888.9%5.6%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202527872.3%21.6%0.4%
August 202524074.2%15.0%1.7%
September 202521982.2%9.6%0.5%
October 202525282.5%10.3%0.0%
November 202524287.6%6.2%0.4%
December 202528284.8%10.3%0.0%
January 202622887.3%9.2%0.9%
February 202619386.0%10.4%1.0%
March 202629579.3%14.2%0.3%
April 202625085.6%8.0%0.0%
May 202626678.2%11.3%0.0%
June 202628268.4%22.0%0.4%

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.

Airline29.0%
Late aircraft38.1%
National airspace30.7%
Weather2.0%
Security0.1%
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.