| Castres to Orzesze | 898.33 mi (1,445.72 km) |
| Castres to Osowa | 1,043.99 mi (1,680.13 km) |
| Castres to Ostroda | 1,062.92 mi (1,710.61 km) |
| Castres to Ostroleka | 1,096.51 mi (1,764.66 km) |
| Castres to Ostrow Mazowiecka | 1,100.06 mi (1,770.38 km) |
| Castres to Ostrow Wielkopolski | 910.51 mi (1,465.33 km) |
| Castres to Ostrowiec Swietokrzyski | 1,026.58 mi (1,652.11 km) |
| Castres to Ostrzeszow | 906.55 mi (1,458.95 km) |
| Castres to Oswiecim | 914.47 mi (1,471.70 km) |
| Castres to Otwock | 1,054.93 mi (1,697.75 km) |
| Castres to Ozarow Mazowiecki | 1,040.43 mi (1,674.41 km) |
| Castres to Ozimek | 892.52 mi (1,436.37 km) |
| Castres to Ozorkow | 975.62 mi (1,570.11 km) |
| Castres to Pabianice | 968.77 mi (1,559.08 km) |
| Castres to Parczew | 1,103.50 mi (1,775.91 km) |
