| Mercer Island to Wodzislaw Slaski | 5,300.29 mi (8,529.99 km) |
| Mercer Island to Wolomin | 5,205.32 mi (8,377.15 km) |
| Mercer Island to Wolow | 5,181.65 mi (8,339.06 km) |
| Mercer Island to Wolsztyn | 5,124.03 mi (8,246.33 km) |
| Mercer Island to Wroclaw | 5,203.87 mi (8,374.82 km) |
| Mercer Island to Wronki | 5,093.59 mi (8,197.34 km) |
| Mercer Island to Wrzesnia | 5,139.24 mi (8,270.80 km) |
| Mercer Island to Wschowa | 5,147.37 mi (8,283.88 km) |
| Mercer Island to Wysokie Mazowieckie | 5,191.12 mi (8,354.30 km) |
| Mercer Island to Wyszkow | 5,193.68 mi (8,358.42 km) |
| Mercer Island to Zabki | 5,206.56 mi (8,379.15 km) |
| Mercer Island to Zabkowice Slaskie | 5,231.97 mi (8,420.04 km) |
| Mercer Island to Zabrze | 5,287.86 mi (8,509.99 km) |
| Mercer Island to Zagan | 5,138.51 mi (8,269.63 km) |
| Mercer Island to Zakopane | 5,372.86 mi (8,646.79 km) |
