| Randallstown to Popovo | 4,976.19 mi (8,008.41 km) |
| Randallstown to Provadia | 5,030.86 mi (8,096.39 km) |
| Randallstown to Radnevo | 5,008.53 mi (8,060.45 km) |
| Randallstown to Radomir | 4,876.54 mi (7,848.03 km) |
| Randallstown to Rakitovo | 4,946.41 mi (7,960.47 km) |
| Randallstown to Rakovski | 4,969.78 mi (7,998.08 km) |
| Randallstown to Razgrad | 4,979.70 mi (8,014.05 km) |
| Randallstown to Razlog | 4,925.13 mi (7,926.23 km) |
| Randallstown to Ruse | 4,945.20 mi (7,958.53 km) |
| Randallstown to Samokov | 4,910.12 mi (7,902.07 km) |
| Randallstown to Sandanski | 4,930.47 mi (7,934.82 km) |
| Randallstown to Sevlievo | 4,944.97 mi (7,958.17 km) |
| Randallstown to Shumen | 5,006.81 mi (8,057.68 km) |
| Randallstown to Silistra | 4,984.19 mi (8,021.28 km) |
| Randallstown to Sliven | 5,008.40 mi (8,060.23 km) |
