American Airlines MIA to IAH on-time performance
American Airlines nonstop flights from Miami to Houston · Aug 2025 – Jul 2026
On-time arrivals
71%
arrived < 15 min late
Cancelled
1.2%
19 flights
Avg arrival delay
22 min
70 min when late
Rank on route
#4 of 6
route average 78% on time
Key facts
- American Airlines flights on MIA to IAH arrived on time 71% of the time in Aug 2025 – Jul 2026.
- 1.2% were cancelled, and 11% arrived an hour or more late.
- That ranks #4 of 6 airlines on this route, which averaged 78% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)37%
- Late-arriving aircraft35%
- Air traffic control & airport congestion19%
- Extreme weather9%
- Security0%
Other airlines on MIA to IAH
- United Airlines86% on time · 13 min avg delay
- Spirit Airlines68% on time · 27 min avg delay
- Frontier Airlines83% on time · 15 min avg delay
- Envoy Air87% on time · 6 min avg delay
- Republic Airways64% on time · 48 min avg delay
Full MIA to IAH comparison →
American Airlines on-time record across all routes →
1,553 American Airlines flights tracked on this route; 19 cancelled, 1 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.