Apt: SF

CALIFORNIA	SFO	SAN FRANCISCO INTL
FLORIDA	SFB	ORLANDO SANFORD INTL
ILLINOIS	SFY	SAVANNA TRI-TOWNSHIP
MAINE	SFM	SANFORD RGNL
RHODE ISLAND	SFZ	PAWTUCKET NORTH CENTRAL STATE
VIRGINIA	SFQ	SUFFOLK EXECUTIVE
WASHINGTON	SFF	SPOKANE FELTS FLD