The City of Miami was a seven-car coach streamliner inaugurated by Illinois Central Railroad on December 18, 1940. Its route was from Chicago to Miami a total distance of 1,493 miles (2,403 km).

The Illinois Central Railroad, sometimes called the Main Line of Mid-America, was a railroad in the Central United States. Its primary routes connected Chicago, Illinois, with New Orleans, Louisiana, and Mobile, Alabama, and thus, the Great Lakes to the Gulf of Mexico. Another line connected Chicago west to Sioux City, Iowa (1870), while smaller branches reached Omaha, Nebraska (1899) from Fort Dodge, Iowa, and Sioux Falls, South Dakota (1877), from Cherokee, Iowa. The IC also ran service to Miami, Florida, on trackage owned by other railroads.