| Riedlingen to Devnya | 934.86 mi (1,504.52 km) |
| Riedlingen to Dimitrovgrad | 890.01 mi (1,432.34 km) |
| Riedlingen to Dobrich | 935.84 mi (1,506.09 km) |
| Riedlingen to Dospat | 845.88 mi (1,361.32 km) |
| Riedlingen to Dupnitsa | 777.31 mi (1,250.96 km) |
| Riedlingen to Elhovo | 927.15 mi (1,492.11 km) |
| Riedlingen to Etropole | 792.12 mi (1,274.79 km) |
| Riedlingen to Gabrovo | 848.30 mi (1,365.21 km) |
| Riedlingen to Gorna Oryahovitsa | 855.02 mi (1,376.03 km) |
| Riedlingen to Gotse Delchev | 831.63 mi (1,338.38 km) |
| Riedlingen to Harmanli | 907.30 mi (1,460.16 km) |
| Riedlingen to Haskovo | 893.11 mi (1,437.31 km) |
| Riedlingen to Ihtiman | 799.48 mi (1,286.63 km) |
| Riedlingen to Isperih | 886.41 mi (1,426.54 km) |
| Riedlingen to Kardzhali | 895.84 mi (1,441.72 km) |
