| Ostrow Wielkopolski to Montana | 622.37 mi (1,001.61 km) |
| Ostrow Wielkopolski to Nova Zagora | 740.06 mi (1,191.01 km) |
| Ostrow Wielkopolski to Novi Iskar | 663.81 mi (1,068.29 km) |
| Ostrow Wielkopolski to Novi Pazar | 720.36 mi (1,159.30 km) |
| Ostrow Wielkopolski to Omurtag | 713.69 mi (1,148.57 km) |
| Ostrow Wielkopolski to Panagyurishte | 698.92 mi (1,124.80 km) |
| Ostrow Wielkopolski to Parvomay | 745.76 mi (1,200.19 km) |
| Ostrow Wielkopolski to Pavlikeni | 677.69 mi (1,090.63 km) |
| Ostrow Wielkopolski to Pazardzhik | 720.99 mi (1,160.32 km) |
| Ostrow Wielkopolski to Pernik | 671.20 mi (1,080.19 km) |
| Ostrow Wielkopolski to Peshtera | 730.96 mi (1,176.37 km) |
| Ostrow Wielkopolski to Petrich | 752.89 mi (1,211.66 km) |
| Ostrow Wielkopolski to Pleven | 651.27 mi (1,048.12 km) |
| Ostrow Wielkopolski to Plovdiv | 732.65 mi (1,179.09 km) |
| Ostrow Wielkopolski to Pomorie | 777.05 mi (1,250.54 km) |
