| Montalegre to Opole | 1,363.17 mi (2,193.81 km) |
| Montalegre to Orzesze | 1,388.34 mi (2,234.31 km) |
| Montalegre to Osowa | 1,477.55 mi (2,377.89 km) |
| Montalegre to Ostroda | 1,513.30 mi (2,435.42 km) |
| Montalegre to Ostroleka | 1,560.60 mi (2,511.55 km) |
| Montalegre to Ostrow Mazowiecka | 1,568.32 mi (2,523.96 km) |
| Montalegre to Ostrow Wielkopolski | 1,379.34 mi (2,219.83 km) |
| Montalegre to Ostrowiec Swietokrzyski | 1,514.20 mi (2,436.86 km) |
| Montalegre to Ostrzeszow | 1,378.86 mi (2,219.06 km) |
| Montalegre to Oswiecim | 1,406.78 mi (2,263.99 km) |
| Montalegre to Otwock | 1,529.31 mi (2,461.19 km) |
| Montalegre to Ozarow Mazowiecki | 1,512.32 mi (2,433.84 km) |
| Montalegre to Ozimek | 1,375.04 mi (2,212.92 km) |
| Montalegre to Ozorkow | 1,445.73 mi (2,326.67 km) |
| Montalegre to Pabianice | 1,443.11 mi (2,322.46 km) |
