| Aosta to Orzesze | 609.92 mi (981.57 km) |
| Aosta to Osowa | 776.19 mi (1,249.16 km) |
| Aosta to Ostroda | 786.72 mi (1,266.11 km) |
| Aosta to Ostroleka | 814.38 mi (1,310.61 km) |
| Aosta to Ostrow Mazowiecka | 816.46 mi (1,313.96 km) |
| Aosta to Ostrow Wielkopolski | 628.54 mi (1,011.54 km) |
| Aosta to Ostrowiec Swietokrzyski | 738.24 mi (1,188.08 km) |
| Aosta to Ostrzeszow | 623.25 mi (1,003.02 km) |
| Aosta to Oswiecim | 625.67 mi (1,006.91 km) |
| Aosta to Otwock | 769.68 mi (1,238.68 km) |
| Aosta to Ozarow Mazowiecki | 756.06 mi (1,216.76 km) |
| Aosta to Ozimek | 605.90 mi (975.10 km) |
| Aosta to Ozorkow | 692.42 mi (1,114.35 km) |
| Aosta to Pabianice | 684.15 mi (1,101.03 km) |
| Aosta to Parczew | 815.74 mi (1,312.80 km) |
