| Delaware to Zambrow | 4,611.29 mi (7,421.15 km) |
| Delaware to Zamosc | 4,740.55 mi (7,629.18 km) |
| Delaware to Zary | 4,417.57 mi (7,109.40 km) |
| Delaware to Zawiercie | 4,615.27 mi (7,427.56 km) |
| Delaware to Zdunska Wola | 4,555.19 mi (7,330.86 km) |
| Delaware to Zdzieszowice | 4,572.20 mi (7,358.24 km) |
| Delaware to Zgierz | 4,560.92 mi (7,340.10 km) |
| Delaware to Zgorzelec | 4,431.17 mi (7,131.28 km) |
| Delaware to Ziebice | 4,525.71 mi (7,283.43 km) |
| Delaware to Zielona Gora | 4,419.49 mi (7,112.49 km) |
| Delaware to Zielonka | 4,602.63 mi (7,407.21 km) |
| Delaware to Zlocieniec | 4,377.96 mi (7,045.65 km) |
| Delaware to Zlotoryja | 4,464.75 mi (7,185.32 km) |
| Delaware to Zlotow | 4,419.75 mi (7,112.90 km) |
| Delaware to Znin | 4,462.04 mi (7,180.96 km) |
