Travelers often ask “Where Does Allegiant Airlines Fly”, and the answer highlights a wide domestic network covering over 120 cities throughout the United States. Allegiant Air serves many small- and medium-sized regional airports often ignored by major carriers, linking them directly with popular leisure destinations such as Las Vegas, Phoenix/Mesa, and various locations across Florida. For example, key focus cities include Las Vegas (LAS), Orlando/Sanford (SFB), Phoenix-Mesa (AZA), Fort Lauderdale (FLL), and St. Petersburg–Clearwater (PIE). Rather than following a traditional hub-and-spoke model, Allegiant emphasizes point-to-point flights — often seasonal or leisure-driven — from underserved airports directly to vacation-friendly destinations. Because of this, people living in smaller cities can access holiday destinations in Florida, Nevada, Arizona and more, without having to travel first to a big metro-airport. So if you’re wondering where does Allegiant fly, the airline gives you wide domestic reach — especially if you live outside major metro areas — and connects lesser-served cities directly to vacation and leisure hotspots across the United States.