Business US freight shipping rates have likely peaked By Deanna B. Narveson - August 15, 2022 (iStock) FacebookTwitterLinkedinEmailPrint U.S. freight rates increased 28% year over year, but declined almost 2% month over month in July, a likely signal that the U.S. market has reached peak freight rates, according to the July Cass Freight report Already an INSIDER? Sign in.