The contributors of Flight-Report published 3 reviews on 2 airlines on the route Chicago - Chicago O'Hare (ORD) → San Diego - San Diego (SAN). The airline with the best average rating is American Airlines with 7.2/10. The average flight time is 4 hours and 21 minutes.
Airlines on this route are:
Frequent travelers recommend "American Airlines Flagship Lounge" at ORD for comfort and services.
The airport of Chicago (ORD) is rated as moderately efficient (security/immigration/police checks); make sure to arrive with sufficient time.