| Boulder to Alcorcon | 5,008.67 mi (8,060.68 km) |
| Boulder to Alcoy | 5,219.57 mi (8,400.09 km) |
| Boulder to Alcudia | 5,312.54 mi (8,549.70 km) |
| Boulder to Aldaya | 5,185.98 mi (8,346.02 km) |
| Boulder to Alella | 5,205.14 mi (8,376.86 km) |
| Boulder to Alfafar | 5,190.78 mi (8,353.75 km) |
| Boulder to Alfaro | 5,015.06 mi (8,070.95 km) |
| Boulder to Algeciras | 5,120.01 mi (8,239.86 km) |
| Boulder to Algemesi | 5,199.18 mi (8,367.27 km) |
| Boulder to Algete | 5,011.86 mi (8,065.82 km) |
| Boulder to Alginet | 5,194.70 mi (8,360.06 km) |
| Boulder to Alguazas | 5,216.44 mi (8,395.05 km) |
| Boulder to Alhama de Murcia | 5,217.56 mi (8,396.85 km) |
| Boulder to Alhaurin de la Torre | 5,136.20 mi (8,265.92 km) |
| Boulder to Alhaurin el Grande | 5,131.88 mi (8,258.97 km) |
