Yes, most trips on the 737 originate in LAX with SNA and ONT following in that order. Seniority moves fairly quickly in LAX with line holding status within the first year most likely (probably 6 months). Once a line holder you can do all sorts of trading and fly a Hawaii 3 day or North/South domestic trips along with regular 4 day trips that do not necessarily have red eye legs. West coast trips on 737,757/767,777, and 787 (and yes, even the airbus) will always have red eye trips due to the nature of the flying pattern. I liked being able to commute West and have basically all day at home with an evening flight to LAX or SFO to report for a 4 day trip that had a report time of 11 PM. Once you wake up on the East Coast or Florida/Mexico/Caribbean/Central America/Texas etc you are back on normal hours for the rest of the trip.