| South Houston to Zambrow | 5,607.36 mi (9,024.17 km) |
| South Houston to Zamosc | 5,739.53 mi (9,236.88 km) |
| South Houston to Zary | 5,419.92 mi (8,722.52 km) |
| South Houston to Zawiercie | 5,616.87 mi (9,039.48 km) |
| South Houston to Zdunska Wola | 5,555.75 mi (8,941.11 km) |
| South Houston to Zdzieszowice | 5,574.47 mi (8,971.25 km) |
| South Houston to Zgierz | 5,560.89 mi (8,949.39 km) |
| South Houston to Zgorzelec | 5,433.98 mi (8,745.15 km) |
| South Houston to Ziebice | 5,528.26 mi (8,896.88 km) |
| South Houston to Zielona Gora | 5,421.39 mi (8,724.88 km) |
| South Houston to Zielonka | 5,600.75 mi (9,013.53 km) |
| South Houston to Zlocieniec | 5,377.58 mi (8,654.38 km) |
| South Houston to Zlotoryja | 5,467.25 mi (8,798.69 km) |
| South Houston to Zlotow | 5,419.00 mi (8,721.04 km) |
| South Houston to Znin | 5,461.65 mi (8,789.67 km) |
