How many days you *need* depends on factors such as how many drivers there are, how long you want to drive each day and what the weather's like. It's about 2040km/1270 miles from Chilliwackto Los Angeles via the most direct route (Seattle, Portland, Eugene then I-5 via Sacramento down to LA). It'll take a minimum of 20 hours driving time, plus time for border formalities, traffic congestion, potential road construction issues and rest stops. It's really up to you how long you want to split up the journey.
