Southwest Airlines MIA to AUS on-time performance
Southwest Airlines nonstop flights from Miami to Austin · Aug 2025 – Jul 2026
On-time arrivals
67%
arrived < 15 min late
Cancelled
0.3%
1 flights
Avg arrival delay
19 min
52 min when late
Rank on route
#5 of 5
route average 72% on time
Key facts
- Southwest Airlines flights on MIA to AUS arrived on time 67% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 9% arrived an hour or more late.
- That ranks #5 of 5 airlines on this route, which averaged 72% on time overall.
- The largest source of delay minutes was late-arriving aircraft (57%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft57%
- Airline (crew, maintenance, cleaning, fueling)18%
- Air traffic control & airport congestion17%
- Extreme weather8%
- Security0%
Other airlines on MIA to AUS
- American Airlines73% on time · 21 min avg delay
- Delta Air Lines68% on time · 29 min avg delay
- Frontier Airlines78% on time · 22 min avg delay
- Envoy Air78% on time · 11 min avg delay
Full MIA to AUS comparison →
Southwest Airlines on-time record across all routes →
348 Southwest Airlines flights tracked on this route; 1 cancelled, 0 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.