| Altadena to Opole | 5,992.18 mi (9,643.49 km) |
| Altadena to Orzesze | 6,042.02 mi (9,723.69 km) |
| Altadena to Osowa | 5,792.20 mi (9,321.64 km) |
| Altadena to Ostroda | 5,867.87 mi (9,443.43 km) |
| Altadena to Ostroleka | 5,940.51 mi (9,560.33 km) |
| Altadena to Ostrow Mazowiecka | 5,963.50 mi (9,597.33 km) |
| Altadena to Ostrow Wielkopolski | 5,933.75 mi (9,549.45 km) |
| Altadena to Ostrowiec Swietokrzyski | 6,061.08 mi (9,754.36 km) |
| Altadena to Ostrzeszow | 5,949.79 mi (9,575.26 km) |
| Altadena to Oswiecim | 6,060.18 mi (9,752.91 km) |
| Altadena to Otwock | 5,989.08 mi (9,638.49 km) |
| Altadena to Ozarow Mazowiecki | 5,972.56 mi (9,611.90 km) |
| Altadena to Ozimek | 5,998.85 mi (9,654.21 km) |
| Altadena to Ozorkow | 5,951.36 mi (9,577.79 km) |
| Altadena to Pabianice | 5,971.88 mi (9,610.82 km) |
