| South River to Argentona | 3,862.70 mi (6,216.42 km) |
| South River to Arico el Nuevo | 3,348.55 mi (5,388.96 km) |
| South River to Armilla | 3,712.17 mi (5,974.16 km) |
| South River to Arnedo | 3,633.87 mi (5,848.14 km) |
| South River to Arona | 3,342.13 mi (5,378.64 km) |
| South River to Arrecife | 3,475.77 mi (5,593.70 km) |
| South River to Arrigorriaga | 3,569.88 mi (5,745.16 km) |
| South River to Arroyomolinos | 3,604.46 mi (5,800.82 km) |
| South River to Arteijo | 3,304.51 mi (5,318.10 km) |
| South River to Arucas | 3,402.16 mi (5,475.25 km) |
| South River to Aspe | 3,813.08 mi (6,136.56 km) |
| South River to Astorga | 3,441.21 mi (5,538.09 km) |
| South River to Atarfe | 3,706.30 mi (5,964.71 km) |
| South River to Avila | 3,556.01 mi (5,722.85 km) |
| South River to Aviles | 3,420.31 mi (5,504.45 km) |
