I'd actually never heard of either of those before reading your comment. looks like skywest flies routes for american airlines, delta, and united. frankly I don

I'd actually never heard of either of those before reading your comment. looks like skywest flies routes for american airlines, delta, and united. frankly I don't fly those very much and I couldn't tell you what the difference between those brands is supposed to be in the first place. horizon seems to be an odd setup. they only fly for alaska airlines which is owned by the same company as horizon itself (?). I mainly fly southwest, which I find to be a markedly different experience than the other US domestic airlines.