American Airlines ORD to MIA on-time performance
American Airlines nonstop flights from Chicago to Miami · Aug 2025 – Jul 2026
On-time arrivals
76%
arrived < 15 min late
Cancelled
1.9%
57 flights
Avg arrival delay
19 min
75 min when late
Rank on route
#1 of 4
route average 74% on time
Key facts
- American Airlines flights on ORD to MIA arrived on time 76% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 9% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was late-arriving aircraft (45%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft45%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion18%
- Extreme weather4%
- Security0%
Other airlines on ORD to MIA
- United Airlines74% on time · 17 min avg delay
- Spirit Airlines60% on time · 29 min avg delay
- Frontier Airlines64% on time · 43 min avg delay
Full ORD to MIA comparison →
American Airlines on-time record across all routes →
3,017 American Airlines flights tracked on this route; 57 cancelled, 5 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.