I would grab flights now. They are probably going to keep creaping up the closer you get.
Where are you actually going to be going once you get to california? Depending on where you will be going, LAX might not be your best bet. In the area you have 4 airport options. LAX, LGB (Long Beach), SNA (orange county/john wayne airport) and BUR (Burbank).
If you will be going South of LAX once you get to California, I would reccommend looking at LAX, SNA, and LGB. The farthest away from LAX is SNA and its only about 40-45minutes (unless there is traffic).
If you will be going North of LAX, I would recommend looking at both LAX and BUR.
I have personally flown out of Burbank, Long Beach and Los Angeles.