| Cities | Distance |
|---|---|
| Olbia to Arcozelo | 944.43 mi (1,519.91 km) |
| Olbia to Arganil | 921.06 mi (1,482.30 km) |
| Olbia to Arouca | 924.77 mi (1,488.27 km) |
| Olbia to Arruda dos Vinhos | 990.55 mi (1,594.13 km) |
| Olbia to Aveiro | 948.16 mi (1,525.91 km) |
| Olbia to Aver-o-Mar | 949.16 mi (1,527.52 km) |
| Olbia to Aves | 924.75 mi (1,488.24 km) |
| Olbia to Azambuja | 978.76 mi (1,575.17 km) |
| Olbia to Baiao | 912.32 mi (1,468.23 km) |
| Olbia to Barcelos | 940.78 mi (1,514.03 km) |
| Olbia to Barreiro | 995.94 mi (1,602.80 km) |
| Olbia to Batalha | 966.75 mi (1,555.83 km) |
| Olbia to Beja | 946.57 mi (1,523.36 km) |
| Olbia to Belas | 1,004.72 mi (1,616.95 km) |
| Olbia to Benavente | 976.90 mi (1,572.17 km) |