| Ciechanow to Devnya | 738.87 mi (1,189.09 km) |
| Ciechanow to Dimitrovgrad | 782.07 mi (1,258.62 km) |
| Ciechanow to Dobrich | 722.18 mi (1,162.23 km) |
| Ciechanow to Dospat | 792.26 mi (1,275.02 km) |
| Ciechanow to Dupnitsa | 741.49 mi (1,193.32 km) |
| Ciechanow to Elhovo | 788.77 mi (1,269.41 km) |
| Ciechanow to Etropole | 710.39 mi (1,143.26 km) |
| Ciechanow to Gabrovo | 724.07 mi (1,165.27 km) |
| Ciechanow to Gorna Oryahovitsa | 711.69 mi (1,145.36 km) |
| Ciechanow to Gotse Delchev | 794.00 mi (1,277.81 km) |
| Ciechanow to Harmanli | 794.02 mi (1,277.86 km) |
| Ciechanow to Haskovo | 789.40 mi (1,270.41 km) |
| Ciechanow to Ihtiman | 735.47 mi (1,183.63 km) |
| Ciechanow to Isperih | 692.85 mi (1,115.04 km) |
| Ciechanow to Kardzhali | 805.71 mi (1,296.66 km) |
