Find great value on US Airways flights from SNA to PHX when you book with CheapOair! The Valley of Sun, Phoenix is America’s fifth most astronomically immense city reposing in the heart of the Sonoran Desert. Two of the paramount attractions of the city include the Heard Museum and the Arizona Science Center, the former offers great exhibits of Native American arts while the later offers a close look on the survival of desert plants and inhabitants. Science and Technology buffs will relish exploring the Arizona Science Center while those fascinated with art will love the collection at the Phoenix Art Museum. For a family day out, the Phoenix Zoo is a great stop. Relish and interact with the wide variety of inhabitants found at this astounding zoo.