South Bend International Airport is a commercial and freight airport located three miles northwest of downtown South Bend, in St. Joseph County, Indiana, United States. It is the state's second busiest airport in terms of passenger traffic after Indianapolis International Airport. The National Plan of Integrated Airport Systems for 2015–2019 called it a primary commercial service facility. Federal Aviation Administration and St. Joseph County Airport Authority records show the airport had 337,140 passenger enplanements in 2020 with an estimated total air passenger volume of over 680,000.