Frontier Airlines is a major American ultra low-cost airline headquartered in Denver, Colorado. It operates flights to over 100 destinations throughout the United States and 31 international destinations, and employs more than 3,000 staff. The carrier is a subsidiary and operating brand of Indigo Partners, LLC, and maintains a hub at Denver International Airport with numerous focus cities across the US and Puerto Rico.

Hartsfield–Jackson Atlanta International Airport is the primary international airport serving Atlanta, Georgia, United States. The airport is located 10 mi (16 km) south of the Downtown Atlanta district. It is named after former Atlanta mayors William B. Hartsfield and Maynard Jackson. ATL covers 4,700 acres (19 km2) of land and has five parallel runways which are aligned in an east-west direction. There are three runways that are 9,000 feet (2,743 m) long, one runway that is 10,000 feet (3,048 m) long, and the longest runway at ATL measures 12,390 feet (3,776 m) long, which can handle the Airbus A380. Since 1998, Hartsfield-Jackson has been the world's busiest airport by passenger traffic. In 2023, the airport served over 104.6 million passengers, the most of any airport in the world.