AA1543Chicago to San Diego
American Airlines flight AA1543 flies from Chicago O'Hare (ORD) to San Diego (SAN), 2,768 km. Over August 2025 to July 2026 it usually arrives about 14 minutes late: 74% of 359 flights arrived within 15 minutes of schedule and 2.2% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of AA1543, August 2025 to July 2026: 359 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as AA1543
Other flights from Chicago to San Diego
More about Chicago O'Hare (ORD) and San Diego (SAN).
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