| Biddeford to Zambrow | 4,013.09 mi (6,458.45 km) |
| Biddeford to Zamosc | 4,132.80 mi (6,651.10 km) |
| Biddeford to Zary | 3,797.77 mi (6,111.92 km) |
| Biddeford to Zawiercie | 3,998.17 mi (6,434.44 km) |
| Biddeford to Zdunska Wola | 3,942.68 mi (6,345.13 km) |
| Biddeford to Zdzieszowice | 3,952.10 mi (6,360.29 km) |
| Biddeford to Zgierz | 3,950.63 mi (6,357.92 km) |
| Biddeford to Zgorzelec | 3,808.70 mi (6,129.51 km) |
| Biddeford to Ziebice | 3,904.36 mi (6,283.45 km) |
| Biddeford to Zielona Gora | 3,801.91 mi (6,118.59 km) |
| Biddeford to Zielonka | 3,998.38 mi (6,434.77 km) |
| Biddeford to Zlocieniec | 3,769.92 mi (6,067.10 km) |
| Biddeford to Zlotoryja | 3,843.89 mi (6,186.14 km) |
| Biddeford to Zlotow | 3,812.76 mi (6,136.05 km) |
| Biddeford to Znin | 3,853.56 mi (6,201.71 km) |
