Leading airlines in the U.S. - domestic market share 2019-2020

The statistic represents the U.S. domestic market share of leading airlines from February 2019 to January 2020. During this time period, American Airlines was the leading airline in the U.S., with a domestic market share of 17.6 percent, followed closely by Delta Airlines.

U.S. airlines' domestic market share

The passenger air transportation market is a thriving industry, taking individuals to locations around the globe. American Airlines was the largest airline in the world based on sales, reaching 44.9 billion U.S. dollars in sales revenue in 2018. Passenger airlines can face much scrutiny for their passenger satisfaction and comfort. A 2019 North American Airline Satisfaction Study by J.D. Power & Associates listed Alaska Airlines and Delta Air Lines as the best traditional carriers for satisfaction, while low-cost airline Southwest Airlines earned the top spot of low-cost carriers tested in the study.

United Airlines, Delta Air Lines, American Airlines and Southwest Airlines are the top ranked airlines based on 2018 domestic market share. Delta operates out of Atlanta, and Hartsfield-Jackson Atlanta International Airport, Delta’s hub, sees the most passenger traffic in the United States. At 330.58 billion, American Airlines boasted the most passenger kilometers flown in 2018. Chicago-headquartered United Airlines is a subsidiary of United Continental Holdings. United has flights to 238 domestic destinations and 60 different countries, the George Bush Intercontinental Airport in Houston being its largest passenger hub with over 40 million passengers every year.