| South River to Opole | 4,225.98 mi (6,801.05 km) |
| South River to Orzesze | 4,275.00 mi (6,879.95 km) |
| South River to Osowa | 4,119.71 mi (6,630.04 km) |
| South River to Ostroda | 4,197.10 mi (6,754.58 km) |
| South River to Ostroleka | 4,276.10 mi (6,881.71 km) |
| South River to Ostrow Mazowiecka | 4,297.49 mi (6,916.15 km) |
| South River to Ostrow Wielkopolski | 4,188.14 mi (6,740.15 km) |
| South River to Ostrowiec Swietokrzyski | 4,346.66 mi (6,995.27 km) |
| South River to Ostrzeszow | 4,200.39 mi (6,759.87 km) |
| South River to Oswiecim | 4,296.92 mi (6,915.22 km) |
| South River to Otwock | 4,299.12 mi (6,918.77 km) |
| South River to Ozarow Mazowiecki | 4,278.61 mi (6,885.75 km) |
| South River to Ozimek | 4,236.38 mi (6,817.80 km) |
| South River to Ozorkow | 4,231.80 mi (6,810.42 km) |
| South River to Pabianice | 4,246.46 mi (6,834.02 km) |
