I ran into this a few months ago when I accidentally typed my middle name wrong on a Horizon Air ticket. At first I thought I’d be stuck rebooking, but it turned out to be pretty straightforward. Online changes are limited (mostly spelling corrections), so the fastest way was just calling their customer support. I dialed 877-764-3622 and got through to an agent who fixed the name and confirmed the updated ticket in less than 15 minutes. They explained that for bigger changes, like swapping the traveler altogether, you usually have to cancel and rebook. It wasn’t stressful once I knew who to call.