| Isperih to Orzesze | 584.99 mi (941.45 km) |
| Isperih to Osowa | 829.87 mi (1,335.54 km) |
| Isperih to Ostroda | 756.66 mi (1,217.72 km) |
| Isperih to Ostroleka | 689.26 mi (1,109.26 km) |
| Isperih to Ostrow Mazowiecka | 666.96 mi (1,073.38 km) |
| Isperih to Ostrow Wielkopolski | 689.08 mi (1,108.97 km) |
| Isperih to Ostrowiec Swietokrzyski | 559.43 mi (900.31 km) |
| Isperih to Ostrzeszow | 673.66 mi (1,084.15 km) |
| Isperih to Oswiecim | 565.09 mi (909.43 km) |
| Isperih to Otwock | 634.59 mi (1,021.28 km) |
| Isperih to Ozarow Mazowiecki | 649.70 mi (1,045.59 km) |
| Isperih to Ozimek | 627.48 mi (1,009.84 km) |
| Isperih to Ozorkow | 668.15 mi (1,075.28 km) |
| Isperih to Pabianice | 647.74 mi (1,042.44 km) |
| Isperih to Parczew | 577.05 mi (928.67 km) |
