| Maryland City to Popovo | 4,988.79 mi (8,028.68 km) |
| Maryland City to Provadia | 5,043.56 mi (8,116.83 km) |
| Maryland City to Radnevo | 5,020.88 mi (8,080.33 km) |
| Maryland City to Radomir | 4,888.59 mi (7,867.43 km) |
| Maryland City to Rakitovo | 4,958.47 mi (7,979.89 km) |
| Maryland City to Rakovski | 4,982.01 mi (8,017.77 km) |
| Maryland City to Razgrad | 4,992.36 mi (8,034.43 km) |
| Maryland City to Razlog | 4,937.11 mi (7,945.50 km) |
| Maryland City to Ruse | 4,957.86 mi (7,978.90 km) |
| Maryland City to Samokov | 4,922.20 mi (7,921.52 km) |
| Maryland City to Sandanski | 4,942.35 mi (7,953.95 km) |
| Maryland City to Sevlievo | 4,957.38 mi (7,978.13 km) |
| Maryland City to Shumen | 5,019.47 mi (8,078.06 km) |
| Maryland City to Silistra | 4,997.05 mi (8,041.98 km) |
| Maryland City to Sliven | 5,020.87 mi (8,080.31 km) |
