MIA to AUS flight delays & on-time performance
Nonstop flights from Miami International Airport to Austin Bergstrom International Airport · 1,103 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MIA or AUS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Miami (MIA) to Austin (AUS) arrived on time 72% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1% were cancelled, and 10% arrived an hour or more late.
- American Airlines was the most punctual airline here (73% on time); Southwest Airlines was the least (67%).
- Departures scheduled around 7am did best (91% on time); around 10pm did worst (62%).
- Tuesday was the most reliable day to fly (82% on time) and Sunday the least (61%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Which airline is most on time from MIA to AUS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Frontier Airlines | 78% | 0.0% | 22 min | 10.8% | 37 |
| Envoy AirRegional airline operating American Eagle flights. | 78% | 0.0% | 11 min | 11.1% | 18 |
| American Airlines | 73% | 1.2% | 21 min | 9.2% | 1,536 |
| Delta Air Lines | 68% | 0.8% | 29 min | 13.5% | 253 |
| Southwest Airlines | 67% | 0.3% | 19 min | 9.2% | 348 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am91%126 flights
- 8am90%259 flights
- 9am84%89 flights
- 11am65%49 flights
- 12pm66%155 flights
- 1pm71%84 flights
- 2pm70%185 flights
- 3pm64%226 flights
- 5pm43%49 flights
- 6pm67%162 flights
- 7pm70%449 flights
- 9pm70%198 flights
- 10pm62%132 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%2.2% cancelled
- Tuesday82%1.0% cancelled
- Wednesday79%0.0% cancelled
- Thursday73%0.6% cancelled
- Friday69%0.3% cancelled
- Saturday69%1.3% cancelled
- Sunday61%1.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft40%
- Airline (crew, maintenance, cleaning, fueling)39%
- Air traffic control & airport congestion15%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather76%
- Airline (crew, maintenance, cleaning, fueling)14%
- Air traffic control & airport congestion10%
- Security0%
MIA to AUS: common questions
- How often are MIA to AUS flights on time?
- 72% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Miami to Austin cancelled?
- 1.0% of scheduled flights were cancelled (21 of 2,192).
- How long are typical delays?
- Across all flights the average arrival delay was 21 min (early arrivals count as zero). Flights that were late arrived 72 min behind schedule on average, and 9.7% of flights were an hour or more late.
- How long is taxi time at MIA?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: AUS to MIA — 79% on time
More flights from Miami
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MIA → AUS, nonstop flights by US airlines that report to the DOT. How we calculate this.