Which airport code corresponds to Grand Rapids, Michigan?

The airport code that corresponds to Grand Rapids, Michigan, is GRR. This code is designated for Gerald R. Ford International Airport, which serves as the primary airport for Grand Rapids and its surrounding areas. Airport codes are typically derived from the location's name or a significant aspect of the area, and GRR reflects the initials of Gerald R. Ford, the 38th President of the United States, who hailed from Michigan.

Other airport codes listed, like GRB, FAT, and FSM, correspond to different locations altogether. GRB represents Green Bay, Wisconsin, while FAT is the airport code for Fresno, California. FSM refers to Fort Smith, Arkansas. Each of these codes is specific to its respective airport and area, highlighting the importance of familiarity with airport codes, especially when referencing different destinations.