| Mason City to Argentona | 4,587.73 mi (7,383.24 km) |
| Mason City to Arico el Nuevo | 4,277.00 mi (6,883.17 km) |
| Mason City to Armilla | 4,514.53 mi (7,265.44 km) |
| Mason City to Arnedo | 4,374.30 mi (7,039.75 km) |
| Mason City to Arona | 4,271.74 mi (6,874.71 km) |
| Mason City to Arrecife | 4,388.91 mi (7,063.28 km) |
| Mason City to Arrigorriaga | 4,302.40 mi (6,924.04 km) |
| Mason City to Arroyomolinos | 4,375.74 mi (7,042.08 km) |
| Mason City to Arteijo | 4,061.81 mi (6,536.86 km) |
| Mason City to Arucas | 4,327.68 mi (6,964.72 km) |
| Mason City to Aspe | 4,589.21 mi (7,385.62 km) |
| Mason City to Astorga | 4,197.69 mi (6,755.53 km) |
| Mason City to Atarfe | 4,508.29 mi (7,255.40 km) |
| Mason City to Avila | 4,326.82 mi (6,963.35 km) |
| Mason City to Aviles | 4,162.80 mi (6,699.37 km) |
