Delta Air Lines MIA to AUS on-time performance
Delta Air Lines nonstop flights from Miami to Austin · Aug 2025 – Jul 2026
On-time arrivals
68%
arrived < 15 min late
Cancelled
0.8%
2 flights
Avg arrival delay
29 min
87 min when late
Rank on route
#4 of 5
route average 72% on time
Key facts
- Delta Air Lines flights on MIA to AUS arrived on time 68% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 14% arrived an hour or more late.
- That ranks #4 of 5 airlines on this route, which averaged 72% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)47%
- Late-arriving aircraft39%
- Air traffic control & airport congestion12%
- Extreme weather3%
- Security0%
Other airlines on MIA to AUS
- American Airlines73% on time · 21 min avg delay
- Southwest Airlines67% on time · 19 min avg delay
- Frontier Airlines78% on time · 22 min avg delay
- Envoy Air78% on time · 11 min avg delay
Full MIA to AUS comparison →
Delta Air Lines on-time record across all routes →
253 Delta Air Lines flights tracked on this route; 2 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.