American Airlines MIA to ATL on-time performance
American Airlines nonstop flights from Miami to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
67%
arrived < 15 min late
Cancelled
0.7%
11 flights
Avg arrival delay
28 min
84 min when late
Rank on route
#5 of 6
route average 74% on time
Key facts
- American Airlines flights on MIA to ATL arrived on time 67% of the time in Aug 2025 – Jul 2026.
- 0.7% were cancelled, and 13% arrived an hour or more late.
- That ranks #5 of 6 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (40%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)40%
- Late-arriving aircraft39%
- Air traffic control & airport congestion17%
- Extreme weather5%
- Security0%
Other airlines on MIA to ATL
- Delta Air Lines77% on time · 19 min avg delay
- Frontier Airlines70% on time · 26 min avg delay
- Spirit Airlines75% on time · 18 min avg delay
- Envoy Air79% on time · 11 min avg delay
- Republic Airways66% on time · 21 min avg delay
Full MIA to ATL comparison →
American Airlines on-time record across all routes →
1,532 American Airlines flights tracked on this route; 11 cancelled, 2 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.