| Port Neches to Sestu | 5,561.24 mi (8,949.95 km) |
| Port Neches to Settimo Torinese | 5,299.37 mi (8,528.52 km) |
| Port Neches to Seveso | 5,339.64 mi (8,593.33 km) |
| Port Neches to Sezze | 5,657.32 mi (9,104.58 km) |
| Port Neches to Siano | 5,754.50 mi (9,260.98 km) |
| Port Neches to Siena | 5,515.10 mi (8,875.70 km) |
| Port Neches to Signa | 5,488.33 mi (8,832.61 km) |
| Port Neches to Silea | 5,469.85 mi (8,802.88 km) |
| Port Neches to Silvi Paese | 5,662.28 mi (9,112.55 km) |
| Port Neches to Sinalunga | 5,535.97 mi (8,909.28 km) |
| Port Neches to Siniscola | 5,542.92 mi (8,920.47 km) |
| Port Neches to Sinnai | 5,566.21 mi (8,957.95 km) |
| Port Neches to Siracusa | 5,927.20 mi (9,538.91 km) |
| Port Neches to Solaro | 5,338.39 mi (8,591.31 km) |
| Port Neches to Soliera | 5,446.41 mi (8,765.15 km) |
