The Silver Comet was a streamlined passenger train inaugurated on May 18, 1947, by the Seaboard Air Line Railroad. Before its inaugural run, the new train was christened by actress Jean Parker at Pennsylvania Station in New York City. The train succeeded the SAL's Cotton States Special, which took the same route and which like the Silver Comet left the northeast at midday and arrived at Birmingham in the late morning.

The Seaboard Coast Line Railroad was a Class I railroad company operating in the Southeastern United States beginning in 1967. Its passenger operations were taken over by Amtrak in 1971. Eventually, the railroad was merged with its affiliate lines to create the Seaboard System in 1983.