Originally Posted by
Tanic
AA has been at T3 since 1979 and will probably leave when US merges them into its T4 operation next year.
And until T4 opened, HP (and I believe WN) was over in T3.
I can't remember the last time I've been in T3, probably the last time my Mom visited and she flew DL. I normally fly US, occasionally UA, and very rarely WN, so I'm normally in T4 and sometimes T2.
According to the PHX Wikipedia page:
Terminal 3 will be expanded and remodeled to accommodate the operators at Terminal 2, which is to be phased out.
So I wouldn't count on T3 going away anytime soon