| San Diego to Noventa Vicentina | 6,155.19 mi (9,905.82 km) |
| San Diego to Novi di Modena | 6,155.12 mi (9,905.70 km) |
| San Diego to Novi Ligure | 6,092.37 mi (9,804.73 km) |
| San Diego to Nuoro | 6,336.81 mi (10,198.11 km) |
| San Diego to Occhiobello | 6,175.58 mi (9,938.64 km) |
| San Diego to Oderzo | 6,159.39 mi (9,912.58 km) |
| San Diego to Oggiono | 6,059.02 mi (9,751.05 km) |
| San Diego to Olbia | 6,312.14 mi (10,158.41 km) |
| San Diego to Oleggio | 6,044.81 mi (9,728.19 km) |
| San Diego to Olgiate Comasco | 6,046.50 mi (9,730.90 km) |
| San Diego to Olgiate Olona | 6,051.36 mi (9,738.73 km) |
| San Diego to Omegna | 6,023.33 mi (9,693.61 km) |
| San Diego to Opera | 6,075.01 mi (9,776.78 km) |
| San Diego to Oppeano | 6,143.13 mi (9,886.41 km) |
| San Diego to Orbassano | 6,037.95 mi (9,717.13 km) |
