Allegiant Airlines is a tiny airline focused on nonstop flights, ticket changes, and cancellations. A flight with Allegiant can be canceled through the company's website. It also offers a team of professionals that can help consumers with flight cancellations and refund claims. You may get in touch with the team by dialing their toll-free number and speaking with a real person. Please contact us as soon as possible so that one of our customer service representatives can help you cancel your subscription. If required, we can also help you navigate the airline's website.