Allegiant Air provides 24-hour customer service for its passengers. You can reach Allegiant's customer service representatives at any time of the day or night to assist with flight bookings, reservations, changes, cancellations, baggage inquiries, and general inquiries. The airline offers various contact methods for customer support, including phone support, email support, and live chat options available through their official website and mobile app. Whether you need assistance with flight schedules, baggage policies, or any other travel-related queries Does Allegiant Allegiant 24-hour customer service ensures that you can get the help you need whenever you need it.