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

Miami, FL (MIA) to Austin, TX (AUS) flight delay odds

71.9% of 2,161 official scheduled MIA-to-AUS flights arrived on time; 18.7% arrived at least 30 minutes late and 1.1% 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
71.9%arrived on time
18.7%30+ min late
1.1%cancelled
2,161scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.1%all scheduled flights
120+ minutes late3.7%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+11.7 mincompleted flights

Which departure time was most reliable for MIA to AUS?

Among qualifying MIA-to-AUS departure window results, Early morning had the highest on-time rate: 89.4% of 405 flights. Night was lowest at 66.1% across 330 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning40589.4%6.4%1.2%
Late morning11377.9%16.8%0.0%
Afternoon70266.4%22.8%0.7%
Evening61168.6%20.3%1.1%
Night33066.1%22.7%1.8%

Which weekday was most reliable for MIA to AUS?

Among qualifying MIA-to-AUS weekday results, Tuesday had the highest on-time rate: 80.6% of 304 flights. Sunday was lowest at 61.5% across 330 flights.

DayFlightsOn time30+ minCancelled
Monday31372.8%17.9%2.6%
Tuesday30480.6%12.5%1.0%
Wednesday28677.3%15.0%0.3%
Thursday31973.4%18.5%0.6%
Friday30969.6%20.1%0.3%
Saturday30069.0%18.7%1.7%
Sunday33061.5%27.3%0.9%

Which airline was most reliable for MIA to AUS?

Among qualifying MIA-to-AUS airline results, Frontier Airlines had the highest on-time rate: 82.6% of 46 flights. Delta Air Lines was lowest at 68.5% across 222 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines1,52372.7%18.4%1.3%
Southwest Airlines34869.0%19.5%0.3%
Delta Air Lines22268.5%21.2%0.9%
Frontier Airlines4682.6%10.9%0.0%
Envoy Air2272.7%18.2%0.0%

Which month was most reliable for MIA to AUS?

Among qualifying MIA-to-AUS month results, September 2025 had the highest on-time rate: 79.2% of 125 flights. July 2025 was lowest at 65.2% across 178 flights.

MonthFlightsOn time30+ minCancelled
July 202517865.2%27.5%2.2%
August 202515768.2%22.3%1.3%
September 202512579.2%11.2%0.8%
October 202515273.7%15.1%0.0%
November 202516677.1%15.1%1.2%
December 202518673.1%18.8%0.0%
January 202617565.7%17.1%4.6%
February 202618278.6%13.2%0.5%
March 202621776.5%15.2%1.4%
April 202621071.0%18.6%0.5%
May 202621367.1%23.5%0.0%
June 202620069.5%23.5%0.5%

What drove MIA to AUS delay minutes?

Airline was the largest recorded MIA-to-AUS delay category, accounting for 39.4% of 42,487 BTS-attributed delay minutes during July 2025–June 2026.

Airline39.4%
Late aircraft38.6%
National airspace16.0%
Weather5.9%
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.