Terminal 3 opened in 1979 and was last upgraded in a multiyear modernization project completed in 2020. That project, which included adding 15 gates, allowed the airport to close Terminal 2.

Phoenix airport lounges Terminal 4 American Airlines Admirals Clubs Where to find them: There are three in Terminal 4: above Gates A7 and A9, between Gates A19 and A21 and above Gates B5 and B7.