| Monroe to Popovo | 5,908.42 mi (9,508.68 km) |
| Monroe to Provadia | 5,960.84 mi (9,593.05 km) |
| Monroe to Radnevo | 5,945.45 mi (9,568.27 km) |
| Monroe to Radomir | 5,818.96 mi (9,364.71 km) |
| Monroe to Rakitovo | 5,888.49 mi (9,476.60 km) |
| Monroe to Rakovski | 5,908.89 mi (9,509.44 km) |
| Monroe to Razgrad | 5,910.52 mi (9,512.07 km) |
| Monroe to Razlog | 5,868.83 mi (9,444.96 km) |
| Monroe to Ruse | 5,876.21 mi (9,456.85 km) |
| Monroe to Samokov | 5,852.05 mi (9,417.97 km) |
| Monroe to Sandanski | 5,875.60 mi (9,455.87 km) |
| Monroe to Sevlievo | 5,881.03 mi (9,464.60 km) |
| Monroe to Shumen | 5,937.62 mi (9,555.67 km) |
| Monroe to Silistra | 5,910.83 mi (9,512.55 km) |
| Monroe to Sliven | 5,942.95 mi (9,564.26 km) |
