American Airlines ORD to SAN on-time performance
American Airlines nonstop flights from Chicago to San Diego · Aug 2025 – Jul 2026
On-time arrivals
66%
arrived < 15 min late
Cancelled
1.7%
23 flights
Avg arrival delay
23 min
65 min when late
Rank on route
#4 of 4
route average 72% on time
Key facts
- American Airlines flights on ORD to SAN arrived on time 66% of the time in Aug 2025 – Jul 2026.
- 1.7% were cancelled, and 12% arrived an hour or more late.
- That ranks #4 of 4 airlines on this route, which averaged 72% on time overall.
- The largest source of delay minutes was late-arriving aircraft (39%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft39%
- Airline (crew, maintenance, cleaning, fueling)35%
- Air traffic control & airport congestion20%
- Extreme weather6%
- Security0%
Other airlines on ORD to SAN
- United Airlines78% on time · 16 min avg delay
- Alaska Airlines69% on time · 24 min avg delay
- Frontier Airlines68% on time · 40 min avg delay
Full ORD to SAN comparison →
American Airlines on-time record across all routes →
1,389 American Airlines flights tracked on this route; 23 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.