| Sun Valley to Popovo | 6,324.65 mi (10,178.54 km) |
| Sun Valley to Provadia | 6,360.69 mi (10,236.54 km) |
| Sun Valley to Radnevo | 6,383.48 mi (10,273.22 km) |
| Sun Valley to Radomir | 6,299.50 mi (10,138.06 km) |
| Sun Valley to Rakitovo | 6,360.94 mi (10,236.95 km) |
| Sun Valley to Rakovski | 6,362.45 mi (10,239.37 km) |
| Sun Valley to Razgrad | 6,319.31 mi (10,169.95 km) |
| Sun Valley to Razlog | 6,352.57 mi (10,223.48 km) |
| Sun Valley to Ruse | 6,289.13 mi (10,121.37 km) |
| Sun Valley to Samokov | 6,326.84 mi (10,182.06 km) |
| Sun Valley to Sandanski | 6,367.49 mi (10,247.48 km) |
| Sun Valley to Sevlievo | 6,320.15 mi (10,171.30 km) |
| Sun Valley to Shumen | 6,343.84 mi (10,209.42 km) |
| Sun Valley to Silistra | 6,298.47 mi (10,136.40 km) |
| Sun Valley to Sliven | 6,368.40 mi (10,248.95 km) |
