| Sion to Devnya | 1,010.35 mi (1,625.99 km) |
| Sion to Dimitrovgrad | 946.63 mi (1,523.46 km) |
| Sion to Dobrich | 1,015.49 mi (1,634.28 km) |
| Sion to Dospat | 891.64 mi (1,434.96 km) |
| Sion to Dupnitsa | 824.71 mi (1,327.24 km) |
| Sion to Elhovo | 988.86 mi (1,591.42 km) |
| Sion to Etropole | 850.43 mi (1,368.64 km) |
| Sion to Gabrovo | 912.51 mi (1,468.54 km) |
| Sion to Gorna Oryahovitsa | 923.48 mi (1,486.19 km) |
| Sion to Gotse Delchev | 874.26 mi (1,406.98 km) |
| Sion to Harmanli | 963.99 mi (1,551.39 km) |
| Sion to Haskovo | 948.38 mi (1,526.27 km) |
| Sion to Ihtiman | 852.35 mi (1,371.73 km) |
| Sion to Isperih | 964.68 mi (1,552.50 km) |
| Sion to Kardzhali | 947.32 mi (1,524.56 km) |
