To speak with a live person at Allegiant Air customer service call ☎️ (1_808-470-7107) or ☎️ (1_808-470-71-07), you can try the following methods: Call Allegiant's Customer Care Call Center: You can reach them 24/7 at ☎️ (1_808-470-7107) or ☎️ (1_808-470-71-07).