| Summit to Opole | 4,212.59 mi (6,779.51 km) |
| Summit to Orzesze | 4,261.66 mi (6,858.48 km) |
| Summit to Osowa | 4,105.46 mi (6,607.10 km) |
| Summit to Ostroda | 4,182.89 mi (6,731.72 km) |
| Summit to Ostroleka | 4,261.91 mi (6,858.88 km) |
| Summit to Ostrow Mazowiecka | 4,283.34 mi (6,893.36 km) |
| Summit to Ostrow Wielkopolski | 4,174.54 mi (6,718.27 km) |
| Summit to Ostrowiec Swietokrzyski | 4,332.93 mi (6,973.17 km) |
| Summit to Ostrzeszow | 4,186.83 mi (6,738.06 km) |
| Summit to Oswiecim | 4,283.56 mi (6,893.73 km) |
| Summit to Otwock | 4,285.15 mi (6,896.29 km) |
| Summit to Ozarow Mazowiecki | 4,264.65 mi (6,863.30 km) |
| Summit to Ozimek | 4,222.97 mi (6,796.22 km) |
| Summit to Ozorkow | 4,218.02 mi (6,788.24 km) |
| Summit to Pabianice | 4,232.74 mi (6,811.94 km) |
