Sacramento International Airport (IATA: SMF, ICAO: KSMF, FAA LID: SMF) is located 10. 5 miles (16. 9 km) northwest of Downtown Sacramento in Sacramento County, California, United States and covers 6,000 acres (2,400 ha). It serves the Sacramento Metropolitan Area, and it is run by the Sacramento County Airport System. The airport is the main gateway to the California State Capitol.Sacramento International Airport (IATA: SMF, ICAO: KSMF, FAA LID: SMF) is located 10. 5 miles (16. 9 km) northwest of Downtown Sacramento in Sacramento County, California, United States and covers 6,000 acres (2,400 ha). It serves the Sacramento Metropolitan Area, and it is run by the Sacramento County Airport System. The airport is the main gateway to the California State Capitol.