| Viterbo to Amorebieta | 753.05 mi (1,211.92 km) |
| Viterbo to Amposta | 606.79 mi (976.53 km) |
| Viterbo to Amurrio | 766.80 mi (1,234.04 km) |
| Viterbo to Andoain | 716.93 mi (1,153.79 km) |
| Viterbo to Andraitx | 541.47 mi (871.41 km) |
| Viterbo to Andujar | 902.57 mi (1,452.55 km) |
| Viterbo to Antequera | 958.90 mi (1,543.21 km) |
| Viterbo to Antigua | 1,748.87 mi (2,814.53 km) |
| Viterbo to Aranda de Duero | 810.40 mi (1,304.22 km) |
| Viterbo to Aranjuez | 831.42 mi (1,338.04 km) |
| Viterbo to Archena | 765.55 mi (1,232.03 km) |
| Viterbo to Arcos de la Frontera | 1,028.14 mi (1,654.63 km) |
| Viterbo to Arenys de Mar | 493.68 mi (794.51 km) |
| Viterbo to Arenys de Munt | 493.83 mi (794.74 km) |
| Viterbo to Argentona | 501.52 mi (807.12 km) |
