| East Chicago to Popovo | 5,267.62 mi (8,477.42 km) |
| East Chicago to Provadia | 5,318.12 mi (8,558.68 km) |
| East Chicago to Radnevo | 5,308.40 mi (8,543.05 km) |
| East Chicago to Radomir | 5,187.58 mi (8,348.61 km) |
| East Chicago to Rakitovo | 5,256.48 mi (8,459.49 km) |
| East Chicago to Rakovski | 5,273.97 mi (8,487.63 km) |
| East Chicago to Razgrad | 5,268.63 mi (8,479.04 km) |
| East Chicago to Razlog | 5,238.54 mi (8,430.61 km) |
| East Chicago to Ruse | 5,234.60 mi (8,424.27 km) |
| East Chicago to Samokov | 5,220.06 mi (8,400.87 km) |
| East Chicago to Sandanski | 5,246.80 mi (8,443.91 km) |
| East Chicago to Sevlievo | 5,243.50 mi (8,438.60 km) |
| East Chicago to Shumen | 5,295.61 mi (8,522.45 km) |
| East Chicago to Silistra | 5,265.85 mi (8,474.56 km) |
| East Chicago to Sliven | 5,303.91 mi (8,535.82 km) |
