Allegiant Air, like many airlines, tends to experience higher call volumes during certain periods, such as holiday seasons, peak travel times, or after major flight disruptions (like cancellations or delays).
Limited Customer Service Hours: If you’re calling outside of regular customer service hours, or during non-peak hours when they may have fewer staff available, it could result in longer wait times or a busy line.
2. Flight Disruptions or Weather Events
If there are cancellations, delays, or significant weather events affecting Allegiant flights, there can be an influx of customer inquiries, making it harder to get through on the phone.
Source: https://community.clover.com/questions/93832/do-you-have-24-hours-to-cancel-with-jetblue247askq.html