I’d recommend against unless you’re going for pelican case hard. I’ve seen them crack too often and they stack terribly. Buy a bag with a sturdy fabric and it’ll last longer. If you pack your most valuable things centrally and use clothes around it it should have plenty of structure to hold up and protect those items.

Former baggage handler here. Buy a duffel bag. I normally would stack them on top and they’re easily the most moldable to spots in the hold. They also hold more than a wheeled bag.

I personally enjoy the ArcLight out in SOCAL. Reserved seating is now a requirement for me.