| Texarkana to Siloam Springs (Arkansas) | 190.62 mi (306.77 km) |
| Texarkana to Silver Firs (Washington) | 1,760.80 mi (2,833.73 km) |
| Texarkana to Silver Spring (Maryland) | 1,023.51 mi (1,647.18 km) |
| Texarkana to Silver Springs Shores (Florida) | 772.49 mi (1,243.21 km) |
| Texarkana to Silverdale (Washington) | 1,778.02 mi (2,861.44 km) |
| Texarkana to Silverton (Oregon) | 1,718.20 mi (2,765.17 km) |
| Texarkana to Simi Valley (California) | 1,412.81 mi (2,273.70 km) |
| Texarkana to Simpsonville (South Carolina) | 682.13 mi (1,097.78 km) |
| Texarkana to Sioux City (Iowa) | 637.43 mi (1,025.84 km) |
| Texarkana to Sioux Falls (South Dakota) | 711.55 mi (1,145.13 km) |
| Texarkana to Skokie (Illinois) | 686.60 mi (1,104.98 km) |
| Texarkana to Sleepy Hollow (New York) | 1,226.47 mi (1,973.81 km) |
| Texarkana to Slidell (Louisiana) | 333.74 mi (537.11 km) |
| Texarkana to Smithfield (North Carolina) | 906.44 mi (1,458.78 km) |
| Texarkana to Smithfield (Utah) | 1,127.08 mi (1,813.86 km) |
