| Syston to Devnya | 1,465.31 mi (2,358.19 km) |
| Syston to Dimitrovgrad | 1,436.71 mi (2,312.17 km) |
| Syston to Dobrich | 1,461.85 mi (2,352.62 km) |
| Syston to Dospat | 1,398.95 mi (2,251.39 km) |
| Syston to Dupnitsa | 1,330.45 mi (2,141.15 km) |
| Syston to Elhovo | 1,469.77 mi (2,365.37 km) |
| Syston to Etropole | 1,339.36 mi (2,155.50 km) |
| Syston to Gabrovo | 1,390.52 mi (2,237.82 km) |
| Syston to Gorna Oryahovitsa | 1,393.76 mi (2,243.04 km) |
| Syston to Gotse Delchev | 1,386.13 mi (2,230.76 km) |
| Syston to Harmanli | 1,453.70 mi (2,339.50 km) |
| Syston to Haskovo | 1,440.60 mi (2,318.42 km) |
| Syston to Ihtiman | 1,349.70 mi (2,172.13 km) |
| Syston to Isperih | 1,415.23 mi (2,277.59 km) |
| Syston to Kardzhali | 1,445.50 mi (2,326.31 km) |
