| Solothurn to Argentona | 465.77 mi (749.59 km) |
| Solothurn to Arico el Nuevo | 1,843.83 mi (2,967.36 km) |
| Solothurn to Armilla | 897.93 mi (1,445.08 km) |
| Solothurn to Arnedo | 585.00 mi (941.47 km) |
| Solothurn to Arona | 1,855.65 mi (2,986.38 km) |
| Solothurn to Arrecife | 1,693.45 mi (2,725.34 km) |
| Solothurn to Arrigorriaga | 577.20 mi (928.91 km) |
| Solothurn to Arroyomolinos | 744.51 mi (1,198.18 km) |
| Solothurn to Arteijo | 824.01 mi (1,326.11 km) |
| Solothurn to Arucas | 1,811.62 mi (2,915.52 km) |
| Solothurn to Aspe | 742.65 mi (1,195.18 km) |
| Solothurn to Astorga | 741.47 mi (1,193.29 km) |
| Solothurn to Atarfe | 896.22 mi (1,442.32 km) |
| Solothurn to Avila | 757.07 mi (1,218.38 km) |
| Solothurn to Aviles | 698.45 mi (1,124.05 km) |
