| Castelnaudary to Orzesze | 921.83 mi (1,483.54 km) |
| Castelnaudary to Osowa | 1,068.47 mi (1,719.54 km) |
| Castelnaudary to Ostroda | 1,087.31 mi (1,749.86 km) |
| Castelnaudary to Ostroleka | 1,120.69 mi (1,803.58 km) |
| Castelnaudary to Ostrow Mazowiecka | 1,124.16 mi (1,809.17 km) |
| Castelnaudary to Ostrow Wielkopolski | 934.68 mi (1,504.22 km) |
| Castelnaudary to Ostrowiec Swietokrzyski | 1,050.11 mi (1,689.98 km) |
| Castelnaudary to Ostrzeszow | 930.64 mi (1,497.72 km) |
| Castelnaudary to Oswiecim | 937.86 mi (1,509.33 km) |
| Castelnaudary to Otwock | 1,078.90 mi (1,736.32 km) |
| Castelnaudary to Ozarow Mazowiecki | 1,064.47 mi (1,713.10 km) |
| Castelnaudary to Ozimek | 916.32 mi (1,474.68 km) |
| Castelnaudary to Ozorkow | 999.73 mi (1,608.91 km) |
| Castelnaudary to Pabianice | 992.78 mi (1,597.72 km) |
| Castelnaudary to Parczew | 1,127.16 mi (1,813.98 km) |
