| Somerton to Popovo | 6,637.95 mi (10,682.74 km) |
| Somerton to Provadia | 6,679.57 mi (10,749.73 km) |
| Somerton to Radnevo | 6,691.04 mi (10,768.19 km) |
| Somerton to Radomir | 6,592.34 mi (10,609.34 km) |
| Somerton to Rakitovo | 6,657.36 mi (10,713.99 km) |
| Somerton to Rakovski | 6,664.83 mi (10,726.01 km) |
| Somerton to Razgrad | 6,634.79 mi (10,677.67 km) |
| Somerton to Razlog | 6,645.27 mi (10,694.53 km) |
| Somerton to Ruse | 6,602.85 mi (10,626.26 km) |
| Somerton to Samokov | 6,621.95 mi (10,657.01 km) |
| Somerton to Sandanski | 6,657.83 mi (10,714.75 km) |
| Somerton to Sevlievo | 6,626.33 mi (10,664.04 km) |
| Somerton to Shumen | 6,660.51 mi (10,719.05 km) |
| Somerton to Silistra | 6,620.00 mi (10,653.86 km) |
| Somerton to Sliven | 6,679.60 mi (10,749.78 km) |
