If you are aspiring to get on with a major airline then I would suggest you consider one with a flow in view of your age and current time. It also depends on whether you have a college degree or not. I would interview with a minimum of 5 regionals when you are within six months of meeting all the qualifications and accepting a class date. (CJO are good for six months). Interview with your least desired first for the practice and save the best for the last. Good luck.