| Duffel to Nova Zagora | 1,171.67 mi (1,885.62 km) |
| Duffel to Novi Iskar | 1,052.61 mi (1,694.02 km) |
| Duffel to Novi Pazar | 1,184.83 mi (1,906.80 km) |
| Duffel to Omurtag | 1,162.69 mi (1,871.17 km) |
| Duffel to Panagyurishte | 1,098.47 mi (1,767.82 km) |
| Duffel to Parvomay | 1,156.79 mi (1,861.67 km) |
| Duffel to Pavlikeni | 1,112.33 mi (1,790.13 km) |
| Duffel to Pazardzhik | 1,117.63 mi (1,798.65 km) |
| Duffel to Pernik | 1,049.16 mi (1,688.46 km) |
| Duffel to Peshtera | 1,123.80 mi (1,808.58 km) |
| Duffel to Petrich | 1,111.43 mi (1,788.67 km) |
| Duffel to Pleven | 1,077.21 mi (1,733.61 km) |
| Duffel to Plovdiv | 1,136.19 mi (1,828.52 km) |
| Duffel to Pomorie | 1,233.43 mi (1,985.02 km) |
| Duffel to Popovo | 1,145.10 mi (1,842.85 km) |
