The fine announced Tuesday is a first. Regulators say no airline has ever broken U.S. laws that require prompt and generous assistance to the loved ones of crash victims.
Three people died and dozens were injured on July 6 when Asiana Flight 214 clipped a seawall while landing.
The U.S. Department of Transportation concluded that some family members had not been contacted two days after the crash, and it took five days to reach the families of all 291 people on the plane.
The agency says the South Korean carrier lacked translators and personnel trained in crash response.
Asiana had no immediate comment.