| Alcanar to Noventa Vicentina | 647.29 mi (1,041.71 km) |
| Alcanar to Novi di Modena | 607.71 mi (978.02 km) |
| Alcanar to Novi Ligure | 512.39 mi (824.61 km) |
| Alcanar to Nuoro | 465.65 mi (749.40 km) |
| Alcanar to Occhiobello | 638.66 mi (1,027.83 km) |
| Alcanar to Oderzo | 704.20 mi (1,133.30 km) |
| Alcanar to Oggiono | 574.63 mi (924.77 km) |
| Alcanar to Olbia | 472.73 mi (760.78 km) |
| Alcanar to Oleggio | 539.32 mi (867.95 km) |
| Alcanar to Olgiate Comasco | 559.80 mi (900.91 km) |
| Alcanar to Olgiate Olona | 550.34 mi (885.69 km) |
| Alcanar to Omegna | 542.82 mi (873.59 km) |
| Alcanar to Opera | 553.49 mi (890.76 km) |
| Alcanar to Oppeano | 632.66 mi (1,018.16 km) |
| Alcanar to Orbassano | 472.12 mi (759.81 km) |
