| Halikko to Novi di Modena | 1,182.22 mi (1,902.60 km) |
| Halikko to Novi Ligure | 1,229.88 mi (1,979.31 km) |
| Halikko to Nuoro | 1,506.88 mi (2,425.08 km) |
| Halikko to Occhiobello | 1,168.86 mi (1,881.10 km) |
| Halikko to Oderzo | 1,098.10 mi (1,767.22 km) |
| Halikko to Oggiono | 1,154.07 mi (1,857.29 km) |
| Halikko to Olbia | 1,464.79 mi (2,357.36 km) |
| Halikko to Oleggio | 1,179.91 mi (1,898.88 km) |
| Halikko to Olgiate Comasco | 1,161.68 mi (1,869.54 km) |
| Halikko to Olgiate Olona | 1,172.78 mi (1,887.40 km) |
| Halikko to Omegna | 1,167.16 mi (1,878.36 km) |
| Halikko to Opera | 1,181.95 mi (1,902.16 km) |
| Halikko to Oppeano | 1,151.07 mi (1,852.46 km) |
| Halikko to Orbassano | 1,239.62 mi (1,994.97 km) |
| Halikko to Orbetello | 1,337.16 mi (2,151.96 km) |
