| Burr Ridge to Popovo | 5,278.93 mi (8,495.62 km) |
| Burr Ridge to Provadia | 5,329.22 mi (8,576.55 km) |
| Burr Ridge to Radnevo | 5,320.07 mi (8,561.82 km) |
| Burr Ridge to Radomir | 5,199.79 mi (8,368.25 km) |
| Burr Ridge to Rakitovo | 5,268.62 mi (8,479.03 km) |
| Burr Ridge to Rakovski | 5,285.84 mi (8,506.73 km) |
| Burr Ridge to Razgrad | 5,279.83 mi (8,497.06 km) |
| Burr Ridge to Razlog | 5,250.83 mi (8,450.39 km) |
| Burr Ridge to Ruse | 5,245.83 mi (8,442.35 km) |
| Burr Ridge to Samokov | 5,232.20 mi (8,420.41 km) |
| Burr Ridge to Sandanski | 5,259.21 mi (8,463.89 km) |
| Burr Ridge to Sevlievo | 5,255.13 mi (8,457.32 km) |
| Burr Ridge to Shumen | 5,306.79 mi (8,540.45 km) |
| Burr Ridge to Silistra | 5,276.73 mi (8,492.07 km) |
| Burr Ridge to Sliven | 5,315.39 mi (8,554.29 km) |
