| Ruston to Popovo | 5,928.51 mi (9,541.01 km) |
| Ruston to Provadia | 5,980.72 mi (9,625.04 km) |
| Ruston to Radnevo | 5,965.95 mi (9,601.27 km) |
| Ruston to Radomir | 5,840.01 mi (9,398.59 km) |
| Ruston to Rakitovo | 5,909.49 mi (9,510.41 km) |
| Ruston to Rakovski | 5,929.61 mi (9,542.78 km) |
| Ruston to Razgrad | 5,930.49 mi (9,544.20 km) |
| Ruston to Razlog | 5,889.99 mi (9,479.03 km) |
| Ruston to Ruse | 5,896.21 mi (9,489.03 km) |
| Ruston to Samokov | 5,873.05 mi (9,451.77 km) |
| Ruston to Sandanski | 5,896.91 mi (9,490.17 km) |
| Ruston to Sevlievo | 5,901.47 mi (9,497.50 km) |
| Ruston to Shumen | 5,957.57 mi (9,587.79 km) |
| Ruston to Silistra | 5,930.43 mi (9,544.11 km) |
| Ruston to Sliven | 5,963.24 mi (9,596.91 km) |
