Scott Kirby’s quotes in this article highlight my main concerns with the other large carriers (Southwest and Frontier) as a Denver based flyer myself. https://liveandletsfly.com/united-ai...ontier-growth/

There is no possible way Southwest can operationally handle the amount of schedule flights it wants to have in Denver currently. Things may go fine when the weather is sunny and clear, but they will struggle to keep their schedule remotely intact when weather interruptions happen.

This is the thing to be aware of the next few years, in my opinion, if you want to fly Southwest.