Best route for driving from so. Cal to Tucson, AZ?

We might visit family in Tucson, driving from the south bay of so. California. We once took some freeway off of the 91 or 60, to Palm Springs, to get to the 10 fwy and because of construction in that area, it was a nightmare! I may just ge onto the 10 freeway near West Covina and take that all the way to AZ. If... show more We might visit family in Tucson, driving from the south bay of so. California. We once took some freeway off of the 91 or 60, to Palm Springs, to get to the 10 fwy and because of construction in that area, it was a nightmare!

I may just ge onto the 10 freeway near West Covina and take that all the way to AZ. If we get up really early maybe we can avoid any traffic.

We would leave Saturday before Christmas and come back on the Tues or Wednesday after Christmas.

Anyone know this route and the traffic patterns?

My husband doesn't really want to fly. We have family in Blythe and we can take a stop there for rest.
Update: I have checked the actual driving route on mapquest. But I was wondering which route is best as far as the traffic etc... I may have to ask the Auto Club.
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