How to find the best deals on Allegiant airlines? https://www.vevioz.com/read-blog/9419_how-to-find-the-best-deals-on-allegiant-airlines.html Allegiant Air is an American air travel company headquartered in Enterprise Nevada, USA. Owned by Allegiant Travels private limited, known for being a customer-centric low-cost airline, operating both chartered and scheduled flights with 79-air crafts covering 99 routes worldwide.