| West Carson to Opole | 6,019.12 mi (9,686.84 km) |
| West Carson to Orzesze | 6,068.97 mi (9,767.06 km) |
| West Carson to Osowa | 5,819.24 mi (9,365.17 km) |
| West Carson to Ostroda | 5,894.93 mi (9,486.97 km) |
| West Carson to Ostroleka | 5,967.58 mi (9,603.89 km) |
| West Carson to Ostrow Mazowiecka | 5,990.57 mi (9,640.90 km) |
| West Carson to Ostrow Wielkopolski | 5,960.72 mi (9,592.84 km) |
| West Carson to Ostrowiec Swietokrzyski | 6,088.11 mi (9,797.86 km) |
| West Carson to Ostrzeszow | 5,976.75 mi (9,618.65 km) |
| West Carson to Oswiecim | 6,087.13 mi (9,796.30 km) |
| West Carson to Otwock | 6,016.13 mi (9,682.03 km) |
| West Carson to Ozarow Mazowiecki | 5,999.60 mi (9,655.42 km) |
| West Carson to Ozimek | 6,025.79 mi (9,697.58 km) |
| West Carson to Ozorkow | 5,978.37 mi (9,621.26 km) |
| West Carson to Pabianice | 5,998.88 mi (9,654.27 km) |
