| Opatija to Alfena | 1,178.02 mi (1,895.83 km) |
| Opatija to Alijo | 1,126.33 mi (1,812.66 km) |
| Opatija to Aljustrel | 1,262.94 mi (2,032.51 km) |
| Opatija to Almada | 1,283.38 mi (2,065.41 km) |
| Opatija to Almargem | 1,283.27 mi (2,065.23 km) |
| Opatija to Almeirim | 1,240.84 mi (1,996.93 km) |
| Opatija to Amadora | 1,285.19 mi (2,068.32 km) |
| Opatija to Amarante | 1,155.13 mi (1,859.01 km) |
| Opatija to Amares | 1,159.36 mi (1,865.81 km) |
| Opatija to Amora | 1,283.30 mi (2,065.27 km) |
| Opatija to Anadia | 1,195.10 mi (1,923.33 km) |
| Opatija to Angra do Heroismo | 2,156.17 mi (3,470.02 km) |
| Opatija to Ansiao | 1,210.03 mi (1,947.36 km) |
| Opatija to Anta | 1,188.78 mi (1,913.15 km) |
| Opatija to Arcos de Valdevez | 1,158.02 mi (1,863.66 km) |
