American Airlines IAH to ORD on-time performance
American Airlines nonstop flights from Houston to Chicago · Aug 2025 – Jul 2026
On-time arrivals
67%
arrived < 15 min late
Cancelled
3.6%
29 flights
Avg arrival delay
40 min
121 min when late
Rank on route
#4 of 8
route average 75% on time
Key facts
- American Airlines flights on IAH to ORD arrived on time 67% of the time in Aug 2025 – Jul 2026.
- 3.6% were cancelled, and 15% arrived an hour or more late.
- That ranks #4 of 8 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was late-arriving aircraft (49%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft49%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion16%
- Extreme weather4%
- Security0%
Other airlines on IAH to ORD
- United Airlines79% on time · 16 min avg delay
- Republic Airways73% on time · 22 min avg delay
- Envoy Air73% on time · 18 min avg delay
- Spirit Airlines63% on time · 27 min avg delay
- Frontier Airlines65% on time · 48 min avg delay
- PSA Airlines50% on time · 78 min avg delay
- SkyWest Airlines50% on time · 23 min avg delay
Full IAH to ORD comparison →
American Airlines on-time record across all routes →
812 American Airlines flights tracked on this route; 29 cancelled, 4 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.