| Sola to Popovo | 1,385.02 mi (2,228.97 km) |
| Sola to Provadia | 1,427.27 mi (2,296.97 km) |
| Sola to Radnevo | 1,439.14 mi (2,316.06 km) |
| Sola to Radomir | 1,350.29 mi (2,173.09 km) |
| Sola to Rakitovo | 1,411.94 mi (2,272.30 km) |
| Sola to Rakovski | 1,415.18 mi (2,277.51 km) |
| Sola to Razgrad | 1,381.95 mi (2,224.04 km) |
| Sola to Razlog | 1,403.36 mi (2,258.49 km) |
| Sola to Ruse | 1,349.92 mi (2,172.49 km) |
| Sola to Samokov | 1,377.67 mi (2,217.15 km) |
| Sola to Sandanski | 1,418.46 mi (2,282.80 km) |
| Sola to Sevlievo | 1,374.80 mi (2,212.52 km) |
| Sola to Shumen | 1,407.79 mi (2,265.62 km) |
| Sola to Silistra | 1,368.80 mi (2,202.86 km) |
| Sola to Sliven | 1,426.85 mi (2,296.30 km) |
