| San Luis Obispo to Noventa Vicentina | 6,121.85 mi (9,852.16 km) |
| San Luis Obispo to Novi di Modena | 6,124.48 mi (9,856.40 km) |
| San Luis Obispo to Novi Ligure | 6,067.37 mi (9,764.49 km) |
| San Luis Obispo to Nuoro | 6,323.74 mi (10,177.07 km) |
| San Luis Obispo to Occhiobello | 6,143.16 mi (9,886.47 km) |
| San Luis Obispo to Oderzo | 6,122.24 mi (9,852.79 km) |
| San Luis Obispo to Oggiono | 6,029.58 mi (9,703.67 km) |
| San Luis Obispo to Olbia | 6,296.83 mi (10,133.77 km) |
| San Luis Obispo to Oleggio | 6,017.65 mi (9,684.48 km) |
| San Luis Obispo to Olgiate Comasco | 6,017.99 mi (9,685.01 km) |
| San Luis Obispo to Olgiate Olona | 6,023.50 mi (9,693.89 km) |
| San Luis Obispo to Omegna | 5,995.87 mi (9,649.42 km) |
| San Luis Obispo to Opera | 6,047.08 mi (9,731.84 km) |
| San Luis Obispo to Oppeano | 6,110.61 mi (9,834.08 km) |
| San Luis Obispo to Orbassano | 6,015.24 mi (9,680.59 km) |
