| Castel San Giorgio to Orzesze | 676.01 mi (1,087.93 km) |
| Castel San Giorgio to Osowa | 958.57 mi (1,542.68 km) |
| Castel San Giorgio to Ostroda | 925.38 mi (1,489.25 km) |
| Castel San Giorgio to Ostroleka | 907.43 mi (1,460.37 km) |
| Castel San Giorgio to Ostrow Mazowiecka | 896.33 mi (1,442.50 km) |
| Castel San Giorgio to Ostrow Wielkopolski | 765.23 mi (1,231.51 km) |
| Castel San Giorgio to Ostrowiec Swietokrzyski | 771.07 mi (1,240.93 km) |
| Castel San Giorgio to Ostrzeszow | 750.65 mi (1,208.06 km) |
| Castel San Giorgio to Oswiecim | 675.68 mi (1,087.40 km) |
| Castel San Giorgio to Otwock | 842.30 mi (1,355.55 km) |
| Castel San Giorgio to Ozarow Mazowiecki | 840.81 mi (1,353.16 km) |
| Castel San Giorgio to Ozimek | 703.80 mi (1,132.66 km) |
| Castel San Giorgio to Ozorkow | 802.58 mi (1,291.62 km) |
| Castel San Giorgio to Pabianice | 783.07 mi (1,260.23 km) |
| Castel San Giorgio to Parczew | 844.04 mi (1,358.34 km) |
