| Washington to Popovo | 1,472.15 mi (2,369.19 km) |
| Washington to Provadia | 1,524.52 mi (2,453.48 km) |
| Washington to Radnevo | 1,511.16 mi (2,431.97 km) |
| Washington to Radomir | 1,392.04 mi (2,240.27 km) |
| Washington to Rakitovo | 1,460.37 mi (2,350.23 km) |
| Washington to Rakovski | 1,476.72 mi (2,376.55 km) |
| Washington to Razgrad | 1,474.15 mi (2,372.41 km) |
| Washington to Razlog | 1,443.69 mi (2,323.39 km) |
| Washington to Ruse | 1,439.84 mi (2,317.20 km) |
| Washington to Samokov | 1,424.01 mi (2,291.73 km) |
| Washington to Sandanski | 1,453.29 mi (2,338.85 km) |
| Washington to Sevlievo | 1,446.33 mi (2,327.65 km) |
| Washington to Shumen | 1,501.24 mi (2,416.01 km) |
| Washington to Silistra | 1,475.41 mi (2,374.44 km) |
| Washington to Sliven | 1,507.32 mi (2,425.80 km) |
