| Colwyn Bay to Popovo | 1,521.93 mi (2,449.31 km) |
| Colwyn Bay to Provadia | 1,576.97 mi (2,537.88 km) |
| Colwyn Bay to Radnevo | 1,555.07 mi (2,502.65 km) |
| Colwyn Bay to Radomir | 1,427.36 mi (2,297.12 km) |
| Colwyn Bay to Rakitovo | 1,496.82 mi (2,408.90 km) |
| Colwyn Bay to Rakovski | 1,517.53 mi (2,442.22 km) |
| Colwyn Bay to Razgrad | 1,525.64 mi (2,455.28 km) |
| Colwyn Bay to Razlog | 1,477.55 mi (2,377.89 km) |
| Colwyn Bay to Ruse | 1,491.12 mi (2,399.73 km) |
| Colwyn Bay to Samokov | 1,460.38 mi (2,350.25 km) |
| Colwyn Bay to Sandanski | 1,485.02 mi (2,389.90 km) |
| Colwyn Bay to Sevlievo | 1,491.15 mi (2,399.78 km) |
| Colwyn Bay to Shumen | 1,552.74 mi (2,498.89 km) |
| Colwyn Bay to Silistra | 1,531.80 mi (2,465.20 km) |
| Colwyn Bay to Sliven | 1,554.24 mi (2,501.31 km) |
