| Southgate to Popovo | 1,347.33 mi (2,168.32 km) |
| Southgate to Provadia | 1,403.71 mi (2,259.06 km) |
| Southgate to Radnevo | 1,377.23 mi (2,216.44 km) |
| Southgate to Radomir | 1,246.01 mi (2,005.26 km) |
| Southgate to Rakitovo | 1,315.73 mi (2,117.47 km) |
| Southgate to Rakovski | 1,338.30 mi (2,153.79 km) |
| Southgate to Razgrad | 1,352.01 mi (2,175.86 km) |
| Southgate to Razlog | 1,295.48 mi (2,084.87 km) |
| Southgate to Ruse | 1,317.51 mi (2,120.33 km) |
| Southgate to Samokov | 1,279.36 mi (2,058.93 km) |
| Southgate to Sandanski | 1,302.11 mi (2,095.55 km) |
| Southgate to Sevlievo | 1,313.98 mi (2,114.64 km) |
| Southgate to Shumen | 1,379.01 mi (2,219.30 km) |
| Southgate to Silistra | 1,361.19 mi (2,190.62 km) |
| Southgate to Sliven | 1,377.95 mi (2,217.59 km) |
