The median annual wage of cargo and freight agents was $37,150 in May 2010. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $22,110, and the top 10 percent earned more than $58,400.
Most cargo and freight agents work full time. Some may work overtime when managing large shipments or short deadlines.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition