Hello...I currently live on the west coast, but we (two adults & two kids) are planning to relocate to the NE coast early next year. I will need to fly back out to the west coast 3-4x per year, to visit aging family members/attend holiday gatherings/etc. We would ideally bring the whole family each trip. I'm really concerned about the cost of all this traveling. Can anyone recommend points programs/credit cards/airline passes, etc. that could make this more affordable? Would need to be with an airline that does coast-to-coast nonstop/1 stop flights (like JetBlue, United, Delta, etc.).

Thanks!