| Indianapolis to Popovo | 5,314.23 mi (8,552.42 km) |
| Indianapolis to Provadia | 5,365.95 mi (8,635.65 km) |
| Indianapolis to Radnevo | 5,352.75 mi (8,614.42 km) |
| Indianapolis to Radomir | 5,228.59 mi (8,414.60 km) |
| Indianapolis to Rakitovo | 5,297.88 mi (8,526.12 km) |
| Indianapolis to Rakovski | 5,317.05 mi (8,556.97 km) |
| Indianapolis to Razgrad | 5,315.92 mi (8,555.14 km) |
| Indianapolis to Razlog | 5,278.96 mi (8,495.67 km) |
| Indianapolis to Ruse | 5,281.70 mi (8,500.07 km) |
| Indianapolis to Samokov | 5,261.43 mi (8,467.46 km) |
| Indianapolis to Sandanski | 5,286.40 mi (8,507.64 km) |
| Indianapolis to Sevlievo | 5,288.11 mi (8,510.39 km) |
| Indianapolis to Shumen | 5,342.98 mi (8,598.69 km) |
| Indianapolis to Silistra | 5,315.10 mi (8,553.82 km) |
| Indianapolis to Sliven | 5,349.46 mi (8,609.12 km) |
