| Opmeer to Amelia | 781.77 mi (1,258.14 km) |
| Opmeer to Anagni | 848.18 mi (1,365.01 km) |
| Opmeer to Ancona | 740.30 mi (1,191.40 km) |
| Opmeer to Andria | 954.59 mi (1,536.26 km) |
| Opmeer to Angri | 942.12 mi (1,516.19 km) |
| Opmeer to Anguillara Sabazia | 808.46 mi (1,301.08 km) |
| Opmeer to Anzio | 856.19 mi (1,377.90 km) |
| Opmeer to Anzola dell'Emilia | 630.84 mi (1,015.24 km) |
| Opmeer to Aosta | 492.99 mi (793.39 km) |
| Opmeer to Apricena | 899.37 mi (1,447.40 km) |
| Opmeer to Aprilia | 847.92 mi (1,364.59 km) |
| Opmeer to Aradeo | 1,067.94 mi (1,718.68 km) |
| Opmeer to Aragona | 1,136.58 mi (1,829.15 km) |
| Opmeer to Arco | 539.11 mi (867.62 km) |
| Opmeer to Arcola | 634.64 mi (1,021.36 km) |
