| Round Rock to Argentona | 5,322.93 mi (8,566.43 km) |
| Round Rock to Arico el Nuevo | 4,775.18 mi (7,684.91 km) |
| Round Rock to Armilla | 5,184.17 mi (8,343.12 km) |
| Round Rock to Arnedo | 5,097.19 mi (8,203.14 km) |
| Round Rock to Arona | 4,767.59 mi (7,672.70 km) |
| Round Rock to Arrecife | 4,915.29 mi (7,910.40 km) |
| Round Rock to Arrigorriaga | 5,031.00 mi (8,096.61 km) |
| Round Rock to Arroyomolinos | 5,073.64 mi (8,165.24 km) |
| Round Rock to Arteijo | 4,770.46 mi (7,677.32 km) |
| Round Rock to Arucas | 4,831.25 mi (7,775.15 km) |
| Round Rock to Aspe | 5,283.28 mi (8,502.62 km) |
| Round Rock to Astorga | 4,907.42 mi (7,897.73 km) |
| Round Rock to Atarfe | 5,178.29 mi (8,333.65 km) |
| Round Rock to Avila | 5,025.02 mi (8,086.99 km) |
| Round Rock to Aviles | 4,883.37 mi (7,859.02 km) |
