| Dumas to Smyrna (Delaware) | 1,457.24 mi (2,345.21 km) |
| Dumas to Smyrna (Georgia) | 997.37 mi (1,605.11 km) |
| Dumas to Smyrna (Tennessee) | 862.99 mi (1,388.86 km) |
| Dumas to Snellville (Georgia) | 1,026.17 mi (1,651.46 km) |
| Dumas to Snoqualmie (Washington) | 1,297.90 mi (2,088.76 km) |
| Dumas to Snyder (Texas) | 225.65 mi (363.15 km) |
| Dumas to Socastee (South Carolina) | 1,308.41 mi (2,105.68 km) |
| Dumas to Socorro (Texas) | 382.06 mi (614.87 km) |
| Dumas to Soddy-Daisy (Tennessee) | 943.52 mi (1,518.45 km) |
| Dumas to Solana Beach (California) | 892.78 mi (1,436.78 km) |
| Dumas to Soledad (California) | 1,080.04 mi (1,738.16 km) |
| Dumas to Solon (Ohio) | 1,168.44 mi (1,880.42 km) |
| Dumas to Somers Point (New Jersey) | 1,510.81 mi (2,431.42 km) |
| Dumas to Somerset (Kentucky) | 966.50 mi (1,555.44 km) |
| Dumas to Somerset (New Jersey) | 1,519.11 mi (2,444.77 km) |
