| Fountain Valley to Noventa Vicentina | 6,130.48 mi (9,866.06 km) |
| Fountain Valley to Novi di Modena | 6,131.17 mi (9,867.16 km) |
| Fountain Valley to Novi Ligure | 6,069.98 mi (9,768.70 km) |
| Fountain Valley to Nuoro | 6,317.92 mi (10,167.70 km) |
| Fountain Valley to Occhiobello | 6,151.14 mi (9,899.31 km) |
| Fountain Valley to Oderzo | 6,133.62 mi (9,871.11 km) |
| Fountain Valley to Oggiono | 6,035.37 mi (9,712.99 km) |
| Fountain Valley to Olbia | 6,292.60 mi (10,126.96 km) |
| Fountain Valley to Oleggio | 6,021.80 mi (9,691.14 km) |
| Fountain Valley to Olgiate Comasco | 6,023.10 mi (9,693.24 km) |
| Fountain Valley to Olgiate Olona | 6,028.15 mi (9,701.37 km) |
| Fountain Valley to Omegna | 6,000.22 mi (9,656.41 km) |
| Fountain Valley to Opera | 6,051.79 mi (9,739.41 km) |
| Fountain Valley to Oppeano | 6,118.65 mi (9,847.01 km) |
| Fountain Valley to Orbassano | 6,016.18 mi (9,682.11 km) |
