Southwest Airlines AUS to MIA on-time performance
Southwest Airlines nonstop flights from Austin to Miami · Aug 2025 – Jul 2026
On-time arrivals
66%
arrived < 15 min late
Cancelled
0.9%
3 flights
Avg arrival delay
17 min
46 min when late
Rank on route
#6 of 6
route average 79% on time
Key facts
- Southwest Airlines flights on AUS to MIA arrived on time 66% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 6% arrived an hour or more late.
- That ranks #6 of 6 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was late-arriving aircraft (41%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft41%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion28%
- Extreme weather2%
- Security0%
Other airlines on AUS to MIA
- American Airlines80% on time · 17 min avg delay
- Delta Air Lines90% on time · 9 min avg delay
- Frontier Airlines76% on time · 21 min avg delay
- Envoy Air78% on time · 16 min avg delay
- Spirit Airlines100% on time · 0 min avg delay
Full AUS to MIA comparison →
Southwest Airlines on-time record across all routes →
349 Southwest Airlines flights tracked on this route; 3 cancelled, 3 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.