| Mercer Island to Irun | 5,185.88 mi (8,345.87 km) |
| Mercer Island to Isla-Cristina | 5,340.93 mi (8,595.40 km) |
| Mercer Island to Jaca | 5,266.95 mi (8,476.33 km) |
| Mercer Island to Jaen | 5,430.04 mi (8,738.80 km) |
| Mercer Island to Jerez de la Frontera | 5,409.62 mi (8,705.95 km) |
| Mercer Island to Jerez de los Caballeros | 5,299.39 mi (8,528.55 km) |
| Mercer Island to Jodar | 5,440.25 mi (8,755.24 km) |
| Mercer Island to Jumilla | 5,469.98 mi (8,803.09 km) |
| Mercer Island to La Algaba | 5,372.64 mi (8,646.42 km) |
| Mercer Island to La Baneza | 5,114.16 mi (8,230.44 km) |
| Mercer Island to La Carlota | 5,396.84 mi (8,685.37 km) |
| Mercer Island to La Carolina | 5,407.62 mi (8,702.72 km) |
| Mercer Island to La Corredoria | 5,058.38 mi (8,140.67 km) |
| Mercer Island to La Eliana | 5,434.34 mi (8,745.73 km) |
| Mercer Island to La Escala | 5,400.13 mi (8,690.68 km) |
