American Airlines MIA to ORD on-time performance
American Airlines nonstop flights from Miami to Chicago · Aug 2025 – Jul 2026
On-time arrivals
72%
arrived < 15 min late
Cancelled
1.9%
56 flights
Avg arrival delay
22 min
76 min when late
Rank on route
#2 of 4
route average 71% on time
Key facts
- American Airlines flights on MIA to ORD arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 11% arrived an hour or more late.
- That ranks #2 of 4 airlines on this route, which averaged 71% on time overall.
- The largest source of delay minutes was late-arriving aircraft (34%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft34%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion28%
- Extreme weather9%
- Security0%
Other airlines on MIA to ORD
- United Airlines70% on time · 27 min avg delay
- Spirit Airlines63% on time · 24 min avg delay
- Frontier Airlines73% on time · 49 min avg delay
Full MIA to ORD comparison →
American Airlines on-time record across all routes →
3,017 American Airlines flights tracked on this route; 56 cancelled, 34 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.