For local travels, using Allegiant Air proved to me the most conservative in cost, convenient, and easy to work with. I would fly them again for sure if I needed.
Over the recent holidays, I found flights through them via Google search initially and was directed to their website. I like ones that allow us to pick our seat. On both departing and arriving flights, this airline still had available seats.
I was invited to download their app. Loved it! I'm normally a paper person where I feel better knowing I have my ticket in hand. But checking in was so much easier. I know I'm probably a late bloomer with this technology. But don't kill my excitement ok... I rarely fly.
And now I receive special offers via email. They've got some nice deals for stay-cations! Maybe you've flown Allegiant; maybe you have yet to. They're worth it. Side note: the flights arrived earlier than anticipated when I had the experience to fly with them.