| Mercer Island to Yuncos | 5,299.78 mi (8,529.18 km) |
| Mercer Island to Zafra | 5,306.20 mi (8,539.51 km) |
| Mercer Island to Zamora | 5,161.59 mi (8,306.78 km) |
| Mercer Island to Zaragoza | 5,306.98 mi (8,540.76 km) |
| Mercer Island to Zarautz | 5,177.42 mi (8,332.25 km) |
| Mercer Island to Zuera | 5,297.67 mi (8,525.78 km) |
| Mercer Island to Zumaia | 5,173.91 mi (8,326.61 km) |
| Mercer Island to Zumarraga | 5,183.86 mi (8,342.62 km) |
| Mercer Island to Longyearbyen | 3,569.38 mi (5,744.36 km) |
| Mercer Island to Ahus | 4,857.97 mi (7,818.15 km) |
| Mercer Island to Akersberga | 4,712.36 mi (7,583.81 km) |
| Mercer Island to Alingsas | 4,704.59 mi (7,571.30 km) |
| Mercer Island to Almhult | 4,817.10 mi (7,752.37 km) |
| Mercer Island to Alta | 4,724.76 mi (7,603.76 km) |
| Mercer Island to Amal | 4,641.48 mi (7,469.74 km) |
