Oceania Cruises offers cruises from Los Angeles to Tahiti and through the Panama Canal. See the schedule of departures below.
Oceania is a premium cruise line with 6 ships in their fleet. A variety of open-seating restaurants is available for no additional fee. They brag about having the "finest cuisine at sea."
They have port-intensive itineraries with extended evening port stays and overnight visits. Culinary Discovery Tour enrichment programs are sometimes available.