Allegiant Air PHX Terminal +1-888-839-0502 Hey there! Just know that flying Allegiant from PHX isn't really fancy. Although it is not particularly noteworthy, the Allegiant Air PHX Terminal itself is operational. Avoid cutting too near to security lines since they might be hit or miss. There isn't much seating and the food selection isn't very good, so if you can, bring your own snacks. Boarding went well, and most of the staff were polite. All things considered, the airline experience is inexpensive and effective, but don't anticipate frills. It works well if you want to save money! FOR MORE: https://www.terminalfind.com/allegiant-air/allegiant-air-phx-terminal-phoenix-sky-harbor-international-airport/