| Mercer Island to Ayamonte | 5,338.17 mi (8,590.96 km) |
| Mercer Island to Azcoitia | 5,178.76 mi (8,334.41 km) |
| Mercer Island to Azpeitia | 5,180.00 mi (8,336.40 km) |
| Mercer Island to Azuqueca de Henares | 5,292.57 mi (8,517.58 km) |
| Mercer Island to Badajoz | 5,262.35 mi (8,468.94 km) |
| Mercer Island to Badalona | 5,412.66 mi (8,710.83 km) |
| Mercer Island to Baena | 5,420.17 mi (8,722.92 km) |
| Mercer Island to Baeza | 5,428.15 mi (8,735.76 km) |
| Mercer Island to Bailen | 5,412.77 mi (8,711.02 km) |
| Mercer Island to Balaguer | 5,350.13 mi (8,610.20 km) |
| Mercer Island to Banolas | 5,389.16 mi (8,673.01 km) |
| Mercer Island to Baranain | 5,219.29 mi (8,399.63 km) |
| Mercer Island to Barbadanes | 5,048.86 mi (8,125.35 km) |
| Mercer Island to Barbastro | 5,315.99 mi (8,555.27 km) |
| Mercer Island to Barcelona | 5,413.88 mi (8,712.80 km) |
