| Hwlffordd to Popovo | 1,552.42 mi (2,498.38 km) |
| Hwlffordd to Provadia | 1,609.31 mi (2,589.94 km) |
| Hwlffordd to Radnevo | 1,580.54 mi (2,543.64 km) |
| Hwlffordd to Radomir | 1,446.67 mi (2,328.18 km) |
| Hwlffordd to Rakitovo | 1,516.55 mi (2,440.65 km) |
| Hwlffordd to Rakovski | 1,540.68 mi (2,479.49 km) |
| Hwlffordd to Razgrad | 1,557.51 mi (2,506.57 km) |
| Hwlffordd to Razlog | 1,495.30 mi (2,406.45 km) |
| Hwlffordd to Ruse | 1,523.04 mi (2,451.09 km) |
| Hwlffordd to Samokov | 1,480.29 mi (2,382.29 km) |
| Hwlffordd to Sandanski | 1,500.96 mi (2,415.57 km) |
| Hwlffordd to Sevlievo | 1,517.77 mi (2,442.62 km) |
| Hwlffordd to Shumen | 1,584.44 mi (2,549.91 km) |
| Hwlffordd to Silistra | 1,567.66 mi (2,522.91 km) |
| Hwlffordd to Sliven | 1,582.18 mi (2,546.27 km) |
