| Buffalo to Popovo | 4,892.52 mi (7,873.74 km) |
| Buffalo to Provadia | 4,945.18 mi (7,958.50 km) |
| Buffalo to Radnevo | 4,929.27 mi (7,932.90 km) |
| Buffalo to Radomir | 4,802.86 mi (7,729.46 km) |
| Buffalo to Rakitovo | 4,872.37 mi (7,841.31 km) |
| Buffalo to Rakovski | 4,892.69 mi (7,874.02 km) |
| Buffalo to Razgrad | 4,894.75 mi (7,877.35 km) |
| Buffalo to Razlog | 4,852.81 mi (7,809.85 km) |
| Buffalo to Ruse | 4,860.42 mi (7,822.09 km) |
| Buffalo to Samokov | 4,835.93 mi (7,782.68 km) |
| Buffalo to Sandanski | 4,859.72 mi (7,820.97 km) |
| Buffalo to Sevlievo | 4,864.88 mi (7,829.27 km) |
| Buffalo to Shumen | 4,921.86 mi (7,920.96 km) |
| Buffalo to Silistra | 4,895.58 mi (7,878.67 km) |
| Buffalo to Sliven | 4,926.89 mi (7,929.06 km) |
