| Barbastro to Opole | 1,033.37 mi (1,663.05 km) |
| Barbastro to Orzesze | 1,049.43 mi (1,688.89 km) |
| Barbastro to Osowa | 1,195.48 mi (1,923.93 km) |
| Barbastro to Ostroda | 1,215.26 mi (1,955.77 km) |
| Barbastro to Ostroleka | 1,248.99 mi (2,010.05 km) |
| Barbastro to Ostrow Mazowiecka | 1,252.46 mi (2,015.65 km) |
| Barbastro to Ostrow Wielkopolski | 1,062.98 mi (1,710.70 km) |
| Barbastro to Ostrowiec Swietokrzyski | 1,177.74 mi (1,895.39 km) |
| Barbastro to Ostrzeszow | 1,058.94 mi (1,704.20 km) |
| Barbastro to Oswiecim | 1,065.23 mi (1,714.32 km) |
| Barbastro to Otwock | 1,207.13 mi (1,942.69 km) |
| Barbastro to Ozarow Mazowiecki | 1,192.75 mi (1,919.54 km) |
| Barbastro to Ozimek | 1,044.39 mi (1,680.78 km) |
| Barbastro to Ozorkow | 1,128.03 mi (1,815.39 km) |
| Barbastro to Pabianice | 1,121.04 mi (1,804.14 km) |
