| Altadena to Nyon | 5,882.48 mi (9,466.94 km) |
| Altadena to Oberriet | 5,940.33 mi (9,560.04 km) |
| Altadena to Obersiggenthal | 5,892.05 mi (9,482.34 km) |
| Altadena to Oberwil | 5,867.59 mi (9,442.97 km) |
| Altadena to Oberwingert | 5,905.32 mi (9,503.69 km) |
| Altadena to Oftringen | 5,889.04 mi (9,477.49 km) |
| Altadena to Olten | 5,886.81 mi (9,473.90 km) |
| Altadena to Onex | 5,888.17 mi (9,476.10 km) |
| Altadena to Opfikon | 5,903.36 mi (9,500.55 km) |
| Altadena to Ostermundigen | 5,894.01 mi (9,485.50 km) |
| Altadena to Payerne | 5,883.27 mi (9,468.20 km) |
| Altadena to Pfaffikon | 5,913.53 mi (9,516.91 km) |
| Altadena to Plan-les-Ouates | 5,889.56 mi (9,478.33 km) |
| Altadena to Pratteln | 5,872.00 mi (9,450.06 km) |
| Altadena to Prilly | 5,886.85 mi (9,473.97 km) |
