Delta's passenger traffic at main hubs 2022

In 2022, Atlanta International Airport was Delta's biggest hub based on passengers, handling some 30.07 million passengers. The airline company is based in Atlanta, Georgia, which is also home to the world's busiest airport, Hartsfield-Jackson Atlanta International Airport.
 

Passing through Atlanta

   Hartsfield-Jackson Atlanta International Airport handled over 725 million flight operations in its 2022 fiscal year.  After experienceing deceased cargo operation in 2019 and 2020, the airport uplifted air cargo and mail at increasing amounts in 2021 and 2022, handling more than 730,000 metric tons of cargo in the fiscal year of 2022. In 2021, the airport reported passenger traffic of around 75.7 million passengers. 

Airports: a source of diverse income streams 

   In addition to providing passengers and airlines a connecting point, airports are also commercial and retail centers that offer a wider variety of duty-free and travel-related goods or services. Airport revenue from non-flying activities comprises a large portion of yearly income; for example, Hartsfield-Jackson Atlanta International Airport's top two operating revenue streams were were landing fees but closely followed by parking. Building and land rental accounted for about 29 percent of operating revenue at the airport.