| Dumas to Southern Pines (North Carolina) | 1,266.62 mi (2,038.43 km) |
| Dumas to Southfield (Michigan) | 1,098.09 mi (1,767.21 km) |
| Dumas to Southgate (Michigan) | 1,094.99 mi (1,762.22 km) |
| Dumas to Southlake (Texas) | 339.98 mi (547.15 km) |
| Dumas to Spanaway (Washington) | 1,306.53 mi (2,102.66 km) |
| Dumas to Spanish Fork (Utah) | 602.69 mi (969.94 km) |
| Dumas to Spanish Lake (Missouri) | 676.28 mi (1,088.37 km) |
| Dumas to Spanish Springs (Nevada) | 1,000.19 mi (1,609.64 km) |
| Dumas to Sparks (Nevada) | 1,001.70 mi (1,612.08 km) |
| Dumas to Spartanburg (South Carolina) | 1,128.37 mi (1,815.93 km) |
| Dumas to Spearfish (South Dakota) | 604.16 mi (972.30 km) |
| Dumas to Speedway (Indiana) | 898.28 mi (1,445.64 km) |
| Dumas to Spencer (Iowa) | 620.18 mi (998.08 km) |
| Dumas to Spokane (Washington) | 1,136.46 mi (1,828.95 km) |
| Dumas to Spokane Valley (Washington) | 1,129.23 mi (1,817.32 km) |
