| Elkton to Popovo | 4,926.31 mi (7,928.13 km) |
| Elkton to Provadia | 4,981.15 mi (8,016.38 km) |
| Elkton to Radnevo | 4,958.25 mi (7,979.54 km) |
| Elkton to Radomir | 4,825.82 mi (7,766.41 km) |
| Elkton to Rakitovo | 4,895.71 mi (7,878.88 km) |
| Elkton to Rakovski | 4,919.32 mi (7,916.89 km) |
| Elkton to Razgrad | 4,929.93 mi (7,933.95 km) |
| Elkton to Razlog | 4,874.30 mi (7,844.42 km) |
| Elkton to Ruse | 4,895.42 mi (7,878.42 km) |
| Elkton to Samokov | 4,859.44 mi (7,820.51 km) |
| Elkton to Sandanski | 4,879.51 mi (7,852.81 km) |
| Elkton to Sevlievo | 4,894.78 mi (7,877.39 km) |
| Elkton to Shumen | 4,957.03 mi (7,977.57 km) |
| Elkton to Silistra | 4,934.76 mi (7,941.73 km) |
| Elkton to Sliven | 4,958.31 mi (7,979.63 km) |
