| Festus to Silver Firs (Washington) | 1,720.48 mi (2,768.85 km) |
| Festus to Silver Spring (Maryland) | 724.23 mi (1,165.54 km) |
| Festus to Silver Springs Shores (Florida) | 792.27 mi (1,275.03 km) |
| Festus to Silverdale (Washington) | 1,742.33 mi (2,804.01 km) |
| Festus to Silverton (Oregon) | 1,723.91 mi (2,774.37 km) |
| Festus to Simi Valley (California) | 1,596.22 mi (2,568.86 km) |
| Festus to Simpsonville (South Carolina) | 512.89 mi (825.42 km) |
| Festus to Sioux City (Iowa) | 431.59 mi (694.57 km) |
| Festus to Sioux Falls (South Dakota) | 493.84 mi (794.75 km) |
| Festus to Skokie (Illinois) | 299.01 mi (481.21 km) |
| Festus to Sleepy Hollow (New York) | 900.34 mi (1,448.95 km) |
| Festus to Slidell (Louisiana) | 549.12 mi (883.73 km) |
| Festus to Smithfield (North Carolina) | 691.79 mi (1,113.33 km) |
| Festus to Smithfield (Utah) | 1,157.06 mi (1,862.11 km) |
| Festus to Smithville (Missouri) | 238.41 mi (383.68 km) |
