| Somerset to Popovo | 4,832.76 mi (7,777.58 km) |
| Somerset to Provadia | 4,887.59 mi (7,865.82 km) |
| Somerset to Radnevo | 4,864.74 mi (7,829.05 km) |
| Somerset to Radomir | 4,732.39 mi (7,616.05 km) |
| Somerset to Rakitovo | 4,802.27 mi (7,728.51 km) |
| Somerset to Rakovski | 4,825.84 mi (7,766.44 km) |
| Somerset to Razgrad | 4,836.37 mi (7,783.39 km) |
| Somerset to Razlog | 4,780.90 mi (7,694.11 km) |
| Somerset to Ruse | 4,801.87 mi (7,727.86 km) |
| Somerset to Samokov | 4,766.00 mi (7,670.14 km) |
| Somerset to Sandanski | 4,786.15 mi (7,702.56 km) |
| Somerset to Sevlievo | 4,801.26 mi (7,726.88 km) |
| Somerset to Shumen | 4,863.48 mi (7,827.01 km) |
| Somerset to Silistra | 4,841.20 mi (7,791.16 km) |
| Somerset to Sliven | 4,864.78 mi (7,829.11 km) |
