| Southborough to Argentona | 671.27 mi (1,080.31 km) |
| Southborough to Arico el Nuevo | 1,810.55 mi (2,913.79 km) |
| Southborough to Armilla | 986.56 mi (1,587.72 km) |
| Southborough to Arnedo | 627.90 mi (1,010.52 km) |
| Southborough to Arona | 1,820.85 mi (2,930.38 km) |
| Southborough to Arrecife | 1,692.29 mi (2,723.48 km) |
| Southborough to Arrigorriaga | 568.87 mi (915.50 km) |
| Southborough to Arroyomolinos | 778.67 mi (1,253.15 km) |
| Southborough to Arteijo | 680.26 mi (1,094.78 km) |
| Southborough to Arucas | 1,791.36 mi (2,882.91 km) |
| Southborough to Aspe | 886.80 mi (1,427.17 km) |
| Southborough to Astorga | 670.94 mi (1,079.78 km) |
| Southborough to Atarfe | 982.30 mi (1,580.87 km) |
| Southborough to Avila | 763.69 mi (1,229.04 km) |
| Southborough to Aviles | 599.08 mi (964.13 km) |
