What is the airport code for Fresno, California?

The airport code for Fresno, California, is FAT. This code is derived from the city's name, incorporating the first letters to create a unique identifier for the airport. FAT stands for Fresno Yosemite International Airport, which serves the region and is an important hub for both domestic and international flights.

Other options such as FRG, GRR, and GRB do not correspond to Fresno. For example, FRG is the airport code for Farmingdale, New York; GRR is for Gerald R. Ford International Airport in Grand Rapids, Michigan; and GRB is the code for Green Bay Austin Straubel International Airport in Wisconsin. Each code is assigned based on the specific geographic location and airport name, ensuring no overlap among major airports, which is why FAT is clearly the correct answer for Fresno, California.