Ontario, CA is definitely an option - international airlines from North, Central and South America fly there as well as domestic carriers that service rest of the US. It's around 35-40 miles from downtown LA one 1 freeway (i've done it in less than an hour!). Regular shuttle buses and conveniently located to Los Angeles, Orange and Riverside Counties. Two parrallel runway, one 12,000 feet. Also on the way when driving to VEGAS!! Long Beach (10,000 feet) is even closer to downtown LA (405 freeway ... aka parking lot..)