| Opwijk to Nova Zagora | 1,181.74 mi (1,901.82 km) |
| Opwijk to Novi Iskar | 1,061.81 mi (1,708.82 km) |
| Opwijk to Novi Pazar | 1,195.86 mi (1,924.55 km) |
| Opwijk to Omurtag | 1,173.30 mi (1,888.25 km) |
| Opwijk to Panagyurishte | 1,107.81 mi (1,782.86 km) |
| Opwijk to Parvomay | 1,166.29 mi (1,876.96 km) |
| Opwijk to Pavlikeni | 1,122.65 mi (1,806.73 km) |
| Opwijk to Pazardzhik | 1,126.83 mi (1,813.46 km) |
| Opwijk to Pernik | 1,058.07 mi (1,702.80 km) |
| Opwijk to Peshtera | 1,132.86 mi (1,823.17 km) |
| Opwijk to Petrich | 1,119.55 mi (1,801.74 km) |
| Opwijk to Pleven | 1,087.38 mi (1,749.98 km) |
| Opwijk to Plovdiv | 1,145.53 mi (1,843.55 km) |
| Opwijk to Pomorie | 1,244.11 mi (2,002.20 km) |
| Opwijk to Popovo | 1,155.81 mi (1,860.10 km) |
