| Reus to Opole | 1,037.96 mi (1,670.43 km) |
| Reus to Orzesze | 1,050.28 mi (1,690.26 km) |
| Reus to Osowa | 1,214.17 mi (1,954.02 km) |
| Reus to Ostroda | 1,228.96 mi (1,977.82 km) |
| Reus to Ostroleka | 1,258.01 mi (2,024.58 km) |
| Reus to Ostrow Mazowiecka | 1,260.03 mi (2,027.82 km) |
| Reus to Ostrow Wielkopolski | 1,072.14 mi (1,725.44 km) |
| Reus to Ostrowiec Swietokrzyski | 1,178.38 mi (1,896.42 km) |
| Reus to Ostrzeszow | 1,066.88 mi (1,716.98 km) |
| Reus to Oswiecim | 1,064.84 mi (1,713.69 km) |
| Reus to Otwock | 1,212.85 mi (1,951.90 km) |
| Reus to Ozarow Mazowiecki | 1,199.52 mi (1,930.44 km) |
| Reus to Ozimek | 1,048.53 mi (1,687.45 km) |
| Reus to Ozorkow | 1,136.06 mi (1,828.31 km) |
| Reus to Pabianice | 1,127.58 mi (1,814.67 km) |
