Delta Air Lines, headquartered in Atlanta, stands as one of the largest and most significant carriers in the United States. Operating on a legacy business model, Delta primarily serves business travelers navigating between cities across the nation and globally, facilitating connections through its major hubs. The airline boasts nine operational hubs, with Atlanta Hartsfield- Jackson International Airport (ATL) being the largest.
Including its regional subsidiaries and contracting partners under the Delta Connection brand, the airline operates over 5,400 daily flights from these hubs, serving more than 320 destinations across 52 countries on six continents.
The carrier holds the distinction of being the oldest airline still operating in the United States and ranks as the seventh-oldest worldwide. Although it does not transport the most annual passengers or have the highest scheduled seat capacity—a title held by American Airlines—Delta is recognized as the world's largest airline based on several metrics. It generates more revenue than any other carrier and consistently ranks highest by brand value.