| Oregon to Popovo | 5,122.21 mi (8,243.41 km) |
| Oregon to Provadia | 5,174.03 mi (8,326.80 km) |
| Oregon to Radnevo | 5,160.59 mi (8,305.17 km) |
| Oregon to Radomir | 5,036.31 mi (8,105.16 km) |
| Oregon to Rakitovo | 5,105.61 mi (8,216.69 km) |
| Oregon to Rakovski | 5,124.84 mi (8,247.63 km) |
| Oregon to Razgrad | 5,123.96 mi (8,246.21 km) |
| Oregon to Razlog | 5,086.67 mi (8,186.21 km) |
| Oregon to Ruse | 5,089.73 mi (8,191.13 km) |
| Oregon to Samokov | 5,069.16 mi (8,158.03 km) |
| Oregon to Sandanski | 5,094.10 mi (8,198.17 km) |
| Oregon to Sevlievo | 5,095.97 mi (8,201.17 km) |
| Oregon to Shumen | 5,151.03 mi (8,289.77 km) |
| Oregon to Silistra | 5,123.32 mi (8,245.19 km) |
| Oregon to Sliven | 5,157.37 mi (8,299.98 km) |
