Shower at LAX...yes, at American
Sadly, this is one of the reasons I switched to American as my first carrier. I was 1K on United and travelled internationally quite often - especially to South America and Europe. When United pulled out of Santiago....I moved to American. American's terminal at LAX has delightful showers and you can get a daily visit pass for a fee if you are not a member. As I commute a ways to the airport and sometimes have evening flights..I utilize the showers before I leave as well as on my return if I haven't picked one up in Dallas or Miami.