| Balaguer to Opole | 1,018.82 mi (1,639.64 km) |
| Balaguer to Orzesze | 1,033.19 mi (1,662.77 km) |
| Balaguer to Osowa | 1,187.79 mi (1,911.57 km) |
| Balaguer to Ostroda | 1,205.13 mi (1,939.46 km) |
| Balaguer to Ostroleka | 1,236.64 mi (1,990.18 km) |
| Balaguer to Ostrow Mazowiecka | 1,239.43 mi (1,994.67 km) |
| Balaguer to Ostrow Wielkopolski | 1,050.58 mi (1,690.75 km) |
| Balaguer to Ostrowiec Swietokrzyski | 1,161.49 mi (1,869.24 km) |
| Balaguer to Ostrzeszow | 1,045.97 mi (1,683.32 km) |
| Balaguer to Oswiecim | 1,048.45 mi (1,687.32 km) |
| Balaguer to Otwock | 1,193.22 mi (1,920.30 km) |
| Balaguer to Ozarow Mazowiecki | 1,179.31 mi (1,897.92 km) |
| Balaguer to Ozimek | 1,029.64 mi (1,657.05 km) |
| Balaguer to Ozorkow | 1,115.14 mi (1,794.65 km) |
| Balaguer to Pabianice | 1,107.46 mi (1,782.28 km) |
