| Soria to Popovo | 1,457.52 mi (2,345.64 km) |
| Soria to Provadia | 1,518.77 mi (2,444.23 km) |
| Soria to Radnevo | 1,451.15 mi (2,335.40 km) |
| Soria to Radomir | 1,298.04 mi (2,088.99 km) |
| Soria to Rakitovo | 1,360.50 mi (2,189.51 km) |
| Soria to Rakovski | 1,402.28 mi (2,256.76 km) |
| Soria to Razgrad | 1,470.46 mi (2,366.48 km) |
| Soria to Razlog | 1,330.14 mi (2,140.66 km) |
| Soria to Ruse | 1,440.77 mi (2,318.70 km) |
| Soria to Samokov | 1,330.41 mi (2,141.09 km) |
| Soria to Sandanski | 1,324.08 mi (2,130.90 km) |
| Soria to Sevlievo | 1,403.63 mi (2,258.93 km) |
| Soria to Shumen | 1,492.99 mi (2,402.74 km) |
| Soria to Silistra | 1,504.07 mi (2,420.57 km) |
| Soria to Sliven | 1,467.75 mi (2,362.12 km) |
