| South Houston to Yuncos | 5,000.38 mi (8,047.33 km) |
| South Houston to Zafra | 4,922.15 mi (7,921.44 km) |
| South Houston to Zamora | 4,870.61 mi (7,838.49 km) |
| South Houston to Zaragoza | 5,096.23 mi (8,201.59 km) |
| South Houston to Zarautz | 4,989.36 mi (8,029.60 km) |
| South Houston to Zuera | 5,094.13 mi (8,198.22 km) |
| South Houston to Zumaia | 4,984.83 mi (8,022.31 km) |
| South Houston to Zumarraga | 4,988.17 mi (8,027.68 km) |
| South Houston to Longyearbyen | 4,497.05 mi (7,237.31 km) |
| South Houston to Ahus | 5,229.48 mi (8,416.04 km) |
| South Houston to Akersberga | 5,217.40 mi (8,396.60 km) |
| South Houston to Alingsas | 5,100.68 mi (8,208.76 km) |
| South Houston to Almhult | 5,201.31 mi (8,370.70 km) |
| South Houston to Alta | 5,223.18 mi (8,405.89 km) |
| South Houston to Amal | 5,066.70 mi (8,154.06 km) |
