How do I transport houseplants (some are large) across the country without killing them?

My husband and I are moving to Las Vegas the first week of June and he is driving a big truck with everything in the back and I am flying with the dog. How do I get them out from Charleston, SC to Las Vegas WITHOUT killing them? I would REALLY love to keep them alive. I have a magestic palm, a (what I call) Pom Palm, one of those little plants that have the big leaves that are dark green that get red, yellow and orange areas usually near the veins, an amarilis, and a pineapple plant that all need to be moved. Help!
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