| Onex to Argentona | 368.88 mi (593.65 km) |
| Onex to Arico el Nuevo | 1,746.56 mi (2,810.81 km) |
| Onex to Armilla | 799.40 mi (1,286.52 km) |
| Onex to Arnedo | 489.59 mi (787.92 km) |
| Onex to Arona | 1,758.42 mi (2,829.90 km) |
| Onex to Arrecife | 1,595.35 mi (2,567.46 km) |
| Onex to Arrigorriaga | 486.51 mi (782.96 km) |
| Onex to Arroyomolinos | 647.66 mi (1,042.31 km) |
| Onex to Arteijo | 742.90 mi (1,195.59 km) |
| Onex to Arucas | 1,713.93 mi (2,758.30 km) |
| Onex to Aspe | 644.89 mi (1,037.84 km) |
| Onex to Astorga | 653.12 mi (1,051.10 km) |
| Onex to Atarfe | 797.68 mi (1,283.74 km) |
| Onex to Avila | 661.67 mi (1,064.85 km) |
| Onex to Aviles | 614.69 mi (989.24 km) |
