Fly with us and save Low cost airline offering cheap flights to las vegas, florida and more We offer airfare deals, cheap hotels and car rentals to popular vacation destinations throughout the u.s. Allegiant air is a wholly owned subsidiary of allegiant travel company, a publicly traded holding company The corporate headquarters for both the airline and its holding company are in summerlin, nevada, a suburb of las vegas. Compare allegiant air prices for the most popular destinations, then book directly with no extra fees.
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