Tampa, FL TPA to Louisville, KY SDF flight with Allegiant Air

American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.

Allegiant Air is an American ultra-low-cost airline headquartered in Las Vegas, Nevada, founded in 1997. It focuses on providing affordable, nonstop leisure travel from small and medium-sized cities to popular vacation destinations, primarily in warm-weather locations like Florida and the Southwest. Allegiant operates on an ultra-low-cost business model, offering low base fares and generating significant revenue through add-on fees for services like baggage and seat assignments. The airline serves over 120 domestic destinations and emphasizes direct sales through its website.

Spirit Airlines is an American ultra-low-cost carrier, headquartered in Dania Beach, Florida, operating scheduled flights throughout the United States, the Caribbean, and Latin America. Known for its distinctive bright yellow planes, Spirit's business model traditionally focuses on offering low base fares by unbundling services, allowing passengers to pay only for the amenities they choose, such as baggage and seat selection. As of August 2024, Spirit is evolving its offerings, introducing new fare tiers like "Go Big," "Go Comfy," "Go Savvy," and "Go," which include various bundled perks such as wider seats, extra legroom, priority boarding, and in-flight refreshments. Spirit was the seventh largest passenger carrier in North America as of 2023.