| Therwil to Devnya | 1,012.58 mi (1,629.59 km) |
| Therwil to Dimitrovgrad | 959.17 mi (1,543.63 km) |
| Therwil to Dobrich | 1,015.32 mi (1,634.01 km) |
| Therwil to Dospat | 909.74 mi (1,464.08 km) |
| Therwil to Dupnitsa | 841.63 mi (1,354.47 km) |
| Therwil to Elhovo | 998.77 mi (1,607.36 km) |
| Therwil to Etropole | 861.66 mi (1,386.71 km) |
| Therwil to Gabrovo | 920.77 mi (1,481.83 km) |
| Therwil to Gorna Oryahovitsa | 929.42 mi (1,495.75 km) |
| Therwil to Gotse Delchev | 893.91 mi (1,438.60 km) |
| Therwil to Harmanli | 976.55 mi (1,571.60 km) |
| Therwil to Haskovo | 961.65 mi (1,547.62 km) |
| Therwil to Ihtiman | 866.51 mi (1,394.51 km) |
| Therwil to Isperih | 965.17 mi (1,553.29 km) |
| Therwil to Kardzhali | 962.61 mi (1,549.18 km) |
