Allegiant Air primarily flies within the United States, serving 121 to 133 domestic destinations as of 2024-2025, focusing on small and medium-sized cities and leisure destinations
. It operates out of about 117 to 121 airports across the U.S., connecting underserved regional airports to popular vacation spots
. Key destinations include:
- Florida cities such as Orlando/Sanford, St. Petersburg/Clearwater, Punta Gorda/Fort Myers, and Fort Walton Beach
- Las Vegas, Nevada
- Phoenix/Mesa, Arizona
- Myrtle Beach, South Carolina
- Other leisure destinations like Los Angeles and various cities in Arizona and California
Allegiant does not fly internationally but serves airports near the Canada–U.S. border, attracting Canadian travelers who cross into the U.S. for domestic flights
. The airline operates non-daily flights tailored to demand, focusing on leisure travel routes rather than business hubs
. In summary, Allegiant Air flies from smaller U.S. regional airports to popular vacation destinations across the country, especially warm-weather and leisure-focused locations, without international service
