| Buford to Popovo | 5,514.24 mi (8,874.30 km) |
| Buford to Provadia | 5,568.77 mi (8,962.08 km) |
| Buford to Radnevo | 5,546.76 mi (8,926.65 km) |
| Buford to Radomir | 5,414.78 mi (8,714.25 km) |
| Buford to Rakitovo | 5,484.66 mi (8,826.70 km) |
| Buford to Rakovski | 5,508.04 mi (8,864.34 km) |
| Buford to Razgrad | 5,517.66 mi (8,879.81 km) |
| Buford to Razlog | 5,463.34 mi (8,792.40 km) |
| Buford to Ruse | 5,483.16 mi (8,824.30 km) |
| Buford to Samokov | 5,448.37 mi (8,768.31 km) |
| Buford to Sandanski | 5,468.62 mi (8,800.90 km) |
| Buford to Sevlievo | 5,483.18 mi (8,824.32 km) |
| Buford to Shumen | 5,544.77 mi (8,923.45 km) |
| Buford to Silistra | 5,521.84 mi (8,886.54 km) |
| Buford to Sliven | 5,546.55 mi (8,926.31 km) |
