| Scottsbluff to Popovo | 5,778.71 mi (9,299.94 km) |
| Scottsbluff to Provadia | 5,822.56 mi (9,370.51 km) |
| Scottsbluff to Radnevo | 5,829.28 mi (9,381.31 km) |
| Scottsbluff to Radomir | 5,725.62 mi (9,214.49 km) |
| Scottsbluff to Rakitovo | 5,791.63 mi (9,320.73 km) |
| Scottsbluff to Rakovski | 5,801.20 mi (9,336.13 km) |
| Scottsbluff to Razgrad | 5,776.50 mi (9,296.37 km) |
| Scottsbluff to Razlog | 5,778.33 mi (9,299.33 km) |
| Scottsbluff to Ruse | 5,743.94 mi (9,243.98 km) |
| Scottsbluff to Samokov | 5,755.90 mi (9,263.23 km) |
| Scottsbluff to Sandanski | 5,790.10 mi (9,318.27 km) |
| Scottsbluff to Sevlievo | 5,764.27 mi (9,276.70 km) |
| Scottsbluff to Shumen | 5,802.61 mi (9,338.40 km) |
| Scottsbluff to Silistra | 5,764.45 mi (9,276.98 km) |
| Scottsbluff to Sliven | 5,819.33 mi (9,365.30 km) |
