| Ourem to Opole | 1,486.81 mi (2,392.78 km) |
| Ourem to Orzesze | 1,508.90 mi (2,428.34 km) |
| Ourem to Osowa | 1,614.61 mi (2,598.47 km) |
| Ourem to Ostroda | 1,646.78 mi (2,650.23 km) |
| Ourem to Ostroleka | 1,690.65 mi (2,720.84 km) |
| Ourem to Ostrow Mazowiecka | 1,697.17 mi (2,731.33 km) |
| Ourem to Ostrow Wielkopolski | 1,507.25 mi (2,425.69 km) |
| Ourem to Ostrowiec Swietokrzyski | 1,636.14 mi (2,633.11 km) |
| Ourem to Ostrzeszow | 1,505.71 mi (2,423.20 km) |
| Ourem to Oswiecim | 1,526.43 mi (2,456.55 km) |
| Ourem to Otwock | 1,656.10 mi (2,665.24 km) |
| Ourem to Ozarow Mazowiecki | 1,639.85 mi (2,639.08 km) |
| Ourem to Ozimek | 1,498.45 mi (2,411.52 km) |
| Ourem to Ozorkow | 1,573.55 mi (2,532.38 km) |
| Ourem to Pabianice | 1,569.59 mi (2,526.01 km) |
