AUS (Austin) to MIA (Miami) flights arrive on time 77% of the time. The most reliable airline on this route is Frontier Airlines at 83%. The average delay is 89 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.AUS → MIA
AUS (Austin) to MIA (Miami)
AUS → MIA on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is on time most of the time. About 77% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Frontier Airlines is significantly more reliable on this route at 83% on time vs null at 67%.
Airline Comparison
Frontier Airlines leads at 83% on time; trails at 67%.
Accurate?
Good to know
Departing from AUS
79% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. AUS has long runway queues.
TSA is currently ~18 min. Best time: 4 AM (about 5 min).
Arriving at MIA
76% on timeWhen flights into MIA are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at MIA: TSA is ~8 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Frontier Airlines owes you — refund rights, action plan, complaint email. Free.
Free flight briefing
Know before you go
Flying AUS → MIA? We'll brief you before takeoff.
Delay riskDOT stats + live data
TSA waitCurrent checkpoint lines
WeatherBoth airports
Gate & terminalLive updates
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated March 2026. Source: Bureau of Transportation Statistics.