| Bethesda to Popovo | 5,006.62 mi (8,057.37 km) |
| Bethesda to Provadia | 5,061.35 mi (8,145.45 km) |
| Bethesda to Radnevo | 5,038.80 mi (8,109.16 km) |
| Bethesda to Radomir | 4,906.61 mi (7,896.43 km) |
| Bethesda to Rakitovo | 4,976.49 mi (8,008.88 km) |
| Bethesda to Rakovski | 4,999.97 mi (8,046.68 km) |
| Bethesda to Razgrad | 5,010.16 mi (8,063.08 km) |
| Bethesda to Razlog | 4,955.15 mi (7,974.54 km) |
| Bethesda to Ruse | 4,975.66 mi (8,007.55 km) |
| Bethesda to Samokov | 4,940.21 mi (7,950.50 km) |
| Bethesda to Sandanski | 4,960.43 mi (7,983.03 km) |
| Bethesda to Sevlievo | 4,975.28 mi (8,006.93 km) |
| Bethesda to Shumen | 5,037.27 mi (8,106.70 km) |
| Bethesda to Silistra | 5,014.77 mi (8,070.50 km) |
| Bethesda to Sliven | 5,038.74 mi (8,109.07 km) |
