| Grottaglie to Olivenza | 1,307.92 mi (2,104.90 km) |
| Grottaglie to Olot | 782.32 mi (1,259.02 km) |
| Grottaglie to Onate | 1,034.65 mi (1,665.11 km) |
| Grottaglie to Onda | 932.54 mi (1,500.78 km) |
| Grottaglie to Onteniente | 964.89 mi (1,552.83 km) |
| Grottaglie to Orihuela | 995.15 mi (1,601.55 km) |
| Grottaglie to Osuna | 1,229.66 mi (1,978.94 km) |
| Grottaglie to Ourense | 1,311.40 mi (2,110.50 km) |
| Grottaglie to Oviedo | 1,208.03 mi (1,944.13 km) |
| Grottaglie to Paiporta | 946.58 mi (1,523.38 km) |
| Grottaglie to Pajara | 1,970.05 mi (3,170.50 km) |
| Grottaglie to Palafolls | 767.53 mi (1,235.22 km) |
| Grottaglie to Palafrugell | 746.83 mi (1,201.90 km) |
| Grottaglie to Palamos | 748.38 mi (1,204.40 km) |
| Grottaglie to Palencia | 1,142.10 mi (1,838.04 km) |
