| Rutherglen to Popovo | 1,593.71 mi (2,564.83 km) |
| Rutherglen to Provadia | 1,645.57 mi (2,648.29 km) |
| Rutherglen to Radnevo | 1,633.57 mi (2,628.97 km) |
| Rutherglen to Radomir | 1,515.35 mi (2,438.72 km) |
| Rutherglen to Rakitovo | 1,583.57 mi (2,548.51 km) |
| Rutherglen to Rakovski | 1,599.51 mi (2,574.17 km) |
| Rutherglen to Razgrad | 1,595.41 mi (2,567.57 km) |
| Rutherglen to Razlog | 1,567.08 mi (2,521.96 km) |
| Rutherglen to Ruse | 1,561.18 mi (2,512.47 km) |
| Rutherglen to Samokov | 1,547.24 mi (2,490.04 km) |
| Rutherglen to Sandanski | 1,576.79 mi (2,537.61 km) |
| Rutherglen to Sevlievo | 1,568.66 mi (2,524.52 km) |
| Rutherglen to Shumen | 1,622.48 mi (2,611.13 km) |
| Rutherglen to Silistra | 1,595.70 mi (2,568.03 km) |
| Rutherglen to Sliven | 1,629.32 mi (2,622.13 km) |
