| Port Neches to Smyrna (Delaware) | 1,221.60 mi (1,965.98 km) |
| Port Neches to Smyrna (Georgia) | 614.37 mi (988.74 km) |
| Port Neches to Smyrna (Tennessee) | 596.58 mi (960.11 km) |
| Port Neches to Snellville (Georgia) | 641.34 mi (1,032.14 km) |
| Port Neches to Snoqualmie (Washington) | 1,913.17 mi (3,078.95 km) |
| Port Neches to Snyder (Texas) | 452.31 mi (727.93 km) |
| Port Neches to Socastee (South Carolina) | 912.57 mi (1,468.64 km) |
| Port Neches to Socorro (Texas) | 739.32 mi (1,189.82 km) |
| Port Neches to Soddy-Daisy (Tennessee) | 627.03 mi (1,009.11 km) |
| Port Neches to Solana Beach (California) | 1,386.35 mi (2,231.12 km) |
| Port Neches to Soledad (California) | 1,639.29 mi (2,638.19 km) |
| Port Neches to Solon (Ohio) | 1,053.23 mi (1,695.01 km) |
| Port Neches to Somers Point (New Jersey) | 1,270.67 mi (2,044.95 km) |
| Port Neches to Somerset (Kentucky) | 727.42 mi (1,170.67 km) |
| Port Neches to Somerset (New Jersey) | 1,311.93 mi (2,111.34 km) |
