| Port Neches to Imola | 5,493.49 mi (8,840.92 km) |
| Port Neches to Impruneta | 5,498.33 mi (8,848.71 km) |
| Port Neches to Induno Olona | 5,319.81 mi (8,561.40 km) |
| Port Neches to Inverigo | 5,339.83 mi (8,593.63 km) |
| Port Neches to Inveruno | 5,331.99 mi (8,581.02 km) |
| Port Neches to Inzago | 5,357.92 mi (8,622.74 km) |
| Port Neches to Iseo | 5,377.27 mi (8,653.89 km) |
| Port Neches to Isernia | 5,703.94 mi (9,179.60 km) |
| Port Neches to Isola Capo Rizzuto | 5,931.87 mi (9,546.43 km) |
| Port Neches to Isola del Liri | 5,672.35 mi (9,128.77 km) |
| Port Neches to Isola della Scala | 5,430.89 mi (8,740.17 km) |
| Port Neches to Isola Vicentina | 5,435.90 mi (8,748.24 km) |
| Port Neches to Ispica | 5,920.90 mi (9,528.77 km) |
| Port Neches to Istrana | 5,460.76 mi (8,788.24 km) |
| Port Neches to Itri | 5,685.75 mi (9,150.34 km) |
