Lois Larson
Hartsfield-Jackson Atlanta International Airport is the busiest airport in the US, with 50.9 million passengers and almost 1,000 flights per day. In 2024, it retained its position as the busiest airport in the world, with 108 million passengers. Chicago O'Hare International Airport, Dallas Fort Worth International Airport, and Denver International Airport are also among the busiest airports in the US, each serving tens of millions of passengers annually.
| Characteristics | Values |
|---|---|
| Busiest airport in the US | Hartsfield-Jackson Atlanta International Airport (ATL) |
| Number of passengers in 2023 | 50.9 million |
| Number of flights per year | 341,835 |
| Number of flights per day | 1,000 |
| Number of passengers in 2024 | 108.1 million |
| Second busiest airport in the US | Dallas Fort Worth International Airport (DFW) |
| Number of passengers in 2024 | 87.8 million |
| Third busiest airport in the US | Denver International Airport (DEN) |
| Number of passengers in 2024 | 82.4 million |
| Busiest airport in the US based on daily flights | Chicago O'Hare International Airport |
| Busiest airport in the US by area | O'Hare International Airport, Chicago |
| Busiest airport in the US by number of airlines | John F. Kennedy International Airport, New York |
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What You'll Learn
Hartsfield-Jackson Atlanta International Airport
The airport is located in Clayton County, with parts of it extending into the city limits of Atlanta, College Park, and Hapeville, in Fulton County. It serves as the corporate headquarters and primary hub of Delta Air Lines, with flights to 225 domestic and international destinations. Aside from Delta, the airport is also a base for Frontier Airlines, Southwest Airlines, and Spirit Airlines.
The airport was originally named William B. Hartsfield Atlanta Airport in 1971, after the former Atlanta mayor, William B. Hartsfield. The name was later changed to William B. Hartsfield Atlanta International Airport as the airport expanded its international operations. In 2003, the airport was renamed Hartsfield-Jackson Atlanta International Airport to honour former mayor Maynard Jackson, recognising his contributions to the airport's development.
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Chicago O'Hare International Airport
O'Hare became famous during the jet age, holding the title of the world's busiest airport by passenger traffic from 1963 to 1998. It has experienced significant growth and expansion over the years. In 2019, the airport recorded 919,704 aircraft movements, averaging 2,520 per day, the highest globally. O'Hare is a hub for major airlines such as American Airlines and United Airlines and serves as an operating base for several other carriers.
The airport offers ground transportation options, including airport shuttles, buses, the Chicago "L", and taxis. It is easily accessible via the Interstate 190 (Kennedy Expressway), which connects directly to the airport. O'Hare has earned a reputation for its connectivity, ranking as the most connected airport in the US and the fifth most connected globally as of 2024.
O'Hare International Airport has a rich history, initially serving as a manufacturing plant for Douglas C-54 Skymasters during World War II. The site was known as Orchard Place and was once a small German-American farming community. The airport gradually expanded, with new terminals, hangars, parking facilities, and improvements in highway access, attracting more airlines and passengers over time.
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Dallas-Fort Worth International Airport
The airport serves as the primary international airport for the Dallas–Fort Worth metroplex and the North Texas region. It is located roughly halfway between the major cities of Dallas and Fort Worth, with its site spread across portions of Dallas and Tarrant counties. The airport also includes sections of the cities of Grapevine, Irving, Euless, and Coppell.
The history of the airport dates back to the post-World War II era when Fort Worth developed the site into Amon Carter Field with the help of American Airlines. In 1953, commercial flights began operating from the airport, and in 1960, it was renamed the Greater Southwest International Airport (GSW). However, by the mid-1960s, GSW experienced a decline in traffic, leading to its virtual abandonment. The proposal for a joint airport between Dallas and Fort Worth was revisited, and after overcoming various challenges, the Dallas Fort Worth International Airport opened for commercial service in January 1974. The airport's dedication ceremony in September 1973 included the first landing of a supersonic Concorde in the United States.
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Denver International Airport
The airport is located 23-25 miles (37-40km) northeast of Downtown Denver, and it is actually closer to the City of Aurora, where many airport-related services are based. Covering 52.4 square miles (136 sq km; 33,500 acres), it is the largest airport in the Western Hemisphere by land area and the second-largest in the world. Its runway, 16R/34L, is 16,000 feet (3.03 miles; 4.88 km) in length, making it the longest public-use runway in North America and the seventh-longest globally.
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John F. Kennedy International Airport
JFK Airport is a major international airport, serving New York City and its metropolitan area. It is the busiest of the seven airports in the New York airport system and the sixth-busiest airport in the United States. It is also the busiest international commercial airport in North America. Over 90 airlines operate out of JFK, with direct flights to destinations across all six inhabited continents. The airport accommodates the most variety of airlines compared to other airports in the US.
The airport features five passenger terminals and four runways. It is accessible by car, bus, shuttle, or other vehicle transit via the JFK Expressway or Interstate 678 (Van Wyck Expressway). The airport's air traffic control tower, located on the ramp side of Terminal 4, stands at 320 feet (98 m) tall. At the time of its completion in October 1994, it was the world's tallest control tower.
The airport opened in 1948 as New York International Airport, commonly known as Idlewild Airport. It was renamed John F. Kennedy International Airport in 1963, following the assassination of President John F. Kennedy. The airport was built to relieve LaGuardia Field, which had become overcrowded after its opening in 1939.
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Frequently asked questions
Hartsfield-Jackson Atlanta International Airport (ATL) is the busiest airport in the US and the world. In 2023, it handled 50.9 million passengers on 341,835 flights per year, which is almost 1,000 flights per day.
In 2024, Hartsfield-Jackson Atlanta International Airport served 108.1 million passengers, which was a 3.3% increase from 2023. In May 2025, the airport had a capacity of 5.5 million seats.
Hartsfield-Jackson Atlanta International Airport is busier than Dubai International Airport (DBX), which is the second busiest airport in the world. In 2024, Dubai International Airport served 92.3 million passengers, while Hartsfield-Jackson Atlanta International Airport served 108.1 million passengers.
