| Oria to Orzesze | 668.93 mi (1,076.54 km) |
| Oria to Osowa | 963.05 mi (1,549.88 km) |
| Oria to Ostroda | 918.48 mi (1,478.15 km) |
| Oria to Ostroleka | 887.65 mi (1,428.53 km) |
| Oria to Ostrow Mazowiecka | 873.21 mi (1,405.29 km) |
| Oria to Ostrow Wielkopolski | 770.40 mi (1,239.84 km) |
| Oria to Ostrowiec Swietokrzyski | 743.16 mi (1,196.00 km) |
| Oria to Ostrzeszow | 754.41 mi (1,214.10 km) |
| Oria to Oswiecim | 663.49 mi (1,067.78 km) |
| Oria to Otwock | 820.88 mi (1,321.08 km) |
| Oria to Ozarow Mazowiecki | 823.30 mi (1,324.97 km) |
| Oria to Ozimek | 703.45 mi (1,132.09 km) |
| Oria to Ozorkow | 796.13 mi (1,281.25 km) |
| Oria to Pabianice | 774.88 mi (1,247.05 km) |
| Oria to Parczew | 808.58 mi (1,301.29 km) |
