Which flight would take the least amount of time from Los Angeles Airport-Australia-Italy or Japan?

The quickest flight from Los Angeles (LAX) is to Japan, with direct flights to cities like Tokyo taking approximately 11 hours. Flights to Australia and Italy generally require longer travel times due to layovers, ranging from 14 to 20 hours, depending on the route. Japan offers the most direct and time-efficient option, making it the fastest destination from LAX compared to Australia or Italy.