| Houthulst to Nova Zagora | 1,232.32 mi (1,983.22 km) |
| Houthulst to Novi Iskar | 1,111.27 mi (1,788.42 km) |
| Houthulst to Novi Pazar | 1,247.56 mi (2,007.75 km) |
| Houthulst to Omurtag | 1,224.54 mi (1,970.70 km) |
| Houthulst to Panagyurishte | 1,157.46 mi (1,862.75 km) |
| Houthulst to Parvomay | 1,216.13 mi (1,957.17 km) |
| Houthulst to Pavlikeni | 1,173.55 mi (1,888.64 km) |
| Houthulst to Pazardzhik | 1,176.27 mi (1,893.02 km) |
| Houthulst to Pernik | 1,107.12 mi (1,781.73 km) |
| Houthulst to Peshtera | 1,182.12 mi (1,902.43 km) |
| Houthulst to Petrich | 1,167.39 mi (1,878.74 km) |
| Houthulst to Pleven | 1,138.11 mi (1,831.61 km) |
| Houthulst to Plovdiv | 1,195.16 mi (1,923.42 km) |
| Houthulst to Pomorie | 1,295.41 mi (2,084.76 km) |
| Houthulst to Popovo | 1,207.17 mi (1,942.74 km) |
