| Fort Smith to Southern Pines (North Carolina) | 843.47 mi (1,357.44 km) |
| Fort Smith to Southfield (Michigan) | 772.90 mi (1,243.86 km) |
| Fort Smith to Southgate (Michigan) | 764.35 mi (1,230.10 km) |
| Fort Smith to Southlake (Texas) | 229.47 mi (369.29 km) |
| Fort Smith to Spanaway (Washington) | 1,655.63 mi (2,664.48 km) |
| Fort Smith to Spanish Fork (Utah) | 997.48 mi (1,605.29 km) |
| Fort Smith to Spanish Lake (Missouri) | 330.22 mi (531.44 km) |
| Fort Smith to Spanish Springs (Nevada) | 1,413.32 mi (2,274.52 km) |
| Fort Smith to Sparks (Nevada) | 1,415.40 mi (2,277.87 km) |
| Fort Smith to Spartanburg (South Carolina) | 703.16 mi (1,131.62 km) |
| Fort Smith to Spearfish (South Dakota) | 804.73 mi (1,295.09 km) |
| Fort Smith to Speedway (Indiana) | 540.09 mi (869.18 km) |
| Fort Smith to Spencer (Iowa) | 540.36 mi (869.63 km) |
| Fort Smith to Spokane (Washington) | 1,456.51 mi (2,344.03 km) |
| Fort Smith to Spokane Valley (Washington) | 1,448.18 mi (2,330.62 km) |
