| Diyadin to Popovo | 939.01 mi (1,511.19 km) |
| Diyadin to Provadia | 877.55 mi (1,412.28 km) |
| Diyadin to Radnevo | 943.96 mi (1,519.16 km) |
| Diyadin to Radomir | 1,097.02 mi (1,765.48 km) |
| Diyadin to Rakitovo | 1,036.86 mi (1,668.66 km) |
| Diyadin to Rakovski | 993.14 mi (1,598.31 km) |
| Diyadin to Razgrad | 927.44 mi (1,492.57 km) |
| Diyadin to Razlog | 1,068.23 mi (1,719.16 km) |
| Diyadin to Ruse | 959.03 mi (1,543.40 km) |
| Diyadin to Samokov | 1,065.24 mi (1,714.34 km) |
| Diyadin to Sandanski | 1,077.23 mi (1,733.64 km) |
| Diyadin to Sevlievo | 991.22 mi (1,595.21 km) |
| Diyadin to Shumen | 903.58 mi (1,454.16 km) |
| Diyadin to Silistra | 900.50 mi (1,449.22 km) |
| Diyadin to Sliven | 926.81 mi (1,491.55 km) |
