| Harlingen to Arico el Nuevo | 2,055.34 mi (3,307.75 km) |
| Harlingen to Armilla | 1,189.34 mi (1,914.05 km) |
| Harlingen to Arnedo | 832.97 mi (1,340.53 km) |
| Harlingen to Arona | 2,065.98 mi (3,324.87 km) |
| Harlingen to Arrecife | 1,929.65 mi (3,105.48 km) |
| Harlingen to Arrigorriaga | 786.67 mi (1,266.03 km) |
| Harlingen to Arroyomolinos | 993.28 mi (1,598.53 km) |
| Harlingen to Arteijo | 932.97 mi (1,501.46 km) |
| Harlingen to Arucas | 2,033.46 mi (3,272.54 km) |
| Harlingen to Aspe | 1,066.17 mi (1,715.83 km) |
| Harlingen to Astorga | 909.89 mi (1,464.33 km) |
| Harlingen to Atarfe | 1,185.85 mi (1,908.45 km) |
| Harlingen to Avila | 985.96 mi (1,586.75 km) |
| Harlingen to Aviles | 841.89 mi (1,354.90 km) |
| Harlingen to Ayamonte | 1,263.80 mi (2,033.89 km) |
