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

Denver, CO (DEN) to Austin, TX (AUS) flight delay odds

Historically, 75.6% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 5,301 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
75.6%arrived on time
15.3%30+ min late
0.6%cancelled
5,301scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.8%all scheduled flights
120+ minutes late2.9%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+7.7 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 morning99493.4%3.0%0.3%
Late morning1,06880.5%10.2%0.5%
Afternoon1,34673.0%15.9%0.6%
Evening1,73264.6%24.5%0.8%
Night16171.4%20.5%1.2%

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
Monday84273.2%17.5%0.6%
Tuesday70180.2%12.3%0.1%
Wednesday71380.5%11.2%0.6%
Thursday82674.8%16.3%0.6%
Friday83971.5%18.0%0.6%
Saturday56978.6%12.0%0.5%
Sunday81172.5%17.8%1.1%

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 Airlines2,34673.0%16.4%0.6%
United Airlines1,91479.2%12.8%0.6%
Frontier Airlines55071.6%20.0%0.7%
SkyWest Airlines49178.0%14.7%0.6%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202543756.3%31.4%1.8%
August 202539969.7%18.0%0.8%
September 202537877.5%14.0%0.0%
October 202543177.0%12.8%0.0%
November 202542681.2%13.4%0.5%
December 202545078.0%14.4%0.0%
January 202642883.2%7.2%2.8%
February 202642186.0%8.8%0.0%
March 202651576.9%14.8%0.4%
April 202644785.0%8.7%0.0%
May 202646773.4%15.8%0.6%
June 202650264.1%22.9%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.

Airline33.2%
Late aircraft45.7%
National airspace17.6%
Weather3.4%
Security0.2%
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.