| Formia to Amorebieta | 845.75 mi (1,361.10 km) |
| Formia to Amposta | 680.32 mi (1,094.87 km) |
| Formia to Amurrio | 858.58 mi (1,381.75 km) |
| Formia to Andoain | 809.69 mi (1,303.07 km) |
| Formia to Andraitx | 599.97 mi (965.55 km) |
| Formia to Andujar | 964.08 mi (1,551.54 km) |
| Formia to Antequera | 1,015.09 mi (1,633.62 km) |
| Formia to Antigua | 1,789.39 mi (2,879.75 km) |
| Formia to Aranda de Duero | 894.54 mi (1,439.62 km) |
| Formia to Aranjuez | 905.18 mi (1,456.75 km) |
| Formia to Archena | 821.21 mi (1,321.62 km) |
| Formia to Arcos de la Frontera | 1,085.50 mi (1,746.95 km) |
| Formia to Arenys de Mar | 573.35 mi (922.72 km) |
| Formia to Arenys de Munt | 573.82 mi (923.47 km) |
| Formia to Argentona | 581.04 mi (935.09 km) |
