| California to Noventa Vicentina | 4,328.89 mi (6,966.68 km) |
| California to Novi di Modena | 4,314.24 mi (6,943.10 km) |
| California to Novi Ligure | 4,226.38 mi (6,801.70 km) |
| California to Nuoro | 4,394.89 mi (7,072.89 km) |
| California to Occhiobello | 4,342.72 mi (6,988.93 km) |
| California to Oderzo | 4,353.63 mi (7,006.49 km) |
| California to Oggiono | 4,219.14 mi (6,790.06 km) |
| California to Olbia | 4,382.44 mi (7,052.85 km) |
| California to Oleggio | 4,193.80 mi (6,749.27 km) |
| California to Olgiate Comasco | 4,202.61 mi (6,763.45 km) |
| California to Olgiate Olona | 4,203.61 mi (6,765.05 km) |
| California to Omegna | 4,175.53 mi (6,719.87 km) |
| California to Opera | 4,225.77 mi (6,800.72 km) |
| California to Oppeano | 4,313.31 mi (6,941.61 km) |
| California to Orbassano | 4,164.00 mi (6,701.31 km) |
