| Burtonsville to Popovo | 4,993.30 mi (8,035.94 km) |
| Burtonsville to Provadia | 5,048.03 mi (8,124.02 km) |
| Burtonsville to Radnevo | 5,025.49 mi (8,087.74 km) |
| Burtonsville to Radomir | 4,893.31 mi (7,875.02 km) |
| Burtonsville to Rakitovo | 4,963.19 mi (7,987.48 km) |
| Burtonsville to Rakovski | 4,986.66 mi (8,025.26 km) |
| Burtonsville to Razgrad | 4,996.85 mi (8,041.65 km) |
| Burtonsville to Razlog | 4,941.85 mi (7,953.14 km) |
| Burtonsville to Ruse | 4,962.34 mi (7,986.12 km) |
| Burtonsville to Samokov | 4,926.91 mi (7,929.09 km) |
| Burtonsville to Sandanski | 4,947.13 mi (7,961.64 km) |
| Burtonsville to Sevlievo | 4,961.96 mi (7,985.51 km) |
| Burtonsville to Shumen | 5,023.96 mi (8,085.28 km) |
| Burtonsville to Silistra | 5,001.46 mi (8,049.07 km) |
| Burtonsville to Sliven | 5,025.43 mi (8,087.64 km) |
