| Port Neches to Krosno Odrzanskie | 5,340.28 mi (8,594.35 km) |
| Port Neches to Krotoszyn | 5,436.47 mi (8,749.15 km) |
| Port Neches to Kruszwica | 5,428.32 mi (8,736.04 km) |
| Port Neches to Krynica | 5,653.81 mi (9,098.93 km) |
| Port Neches to Krzeszowice | 5,576.71 mi (8,974.85 km) |
| Port Neches to Kudowa-Zdroj | 5,442.17 mi (8,758.33 km) |
| Port Neches to Kutno | 5,481.69 mi (8,821.93 km) |
| Port Neches to Kwidzyn | 5,406.42 mi (8,700.79 km) |
| Port Neches to Lancut | 5,671.08 mi (9,126.72 km) |
| Port Neches to Lapy | 5,567.94 mi (8,960.73 km) |
| Port Neches to Lask | 5,499.70 mi (8,850.91 km) |
| Port Neches to Laziska Gorne | 5,548.03 mi (8,928.69 km) |
| Port Neches to Lebork | 5,335.05 mi (8,585.93 km) |
| Port Neches to Leczna | 5,640.37 mi (9,077.30 km) |
| Port Neches to Leczyca | 5,483.40 mi (8,824.67 km) |
