| Port Neches to Collegno | 5,293.00 mi (8,518.26 km) |
| Port Neches to Cologno al Serio | 5,365.21 mi (8,634.48 km) |
| Port Neches to Cologno Monzese | 5,349.52 mi (8,609.22 km) |
| Port Neches to Colorno | 5,416.74 mi (8,717.40 km) |
| Port Neches to Comacchio | 5,500.31 mi (8,851.89 km) |
| Port Neches to Comiso | 5,900.71 mi (9,496.28 km) |
| Port Neches to Como | 5,331.72 mi (8,580.58 km) |
| Port Neches to Concordia Sagittaria | 5,488.28 mi (8,832.53 km) |
| Port Neches to Concorezzo | 5,349.80 mi (8,609.67 km) |
| Port Neches to Conegliano | 5,461.36 mi (8,789.20 km) |
| Port Neches to Conselice | 5,492.46 mi (8,839.27 km) |
| Port Neches to Conselve | 5,467.63 mi (8,799.30 km) |
| Port Neches to Conversano | 5,851.66 mi (9,417.33 km) |
| Port Neches to Copertino | 5,919.69 mi (9,526.82 km) |
| Port Neches to Copparo | 5,478.43 mi (8,816.68 km) |
