| Orthez to Popovo | 1,349.26 mi (2,171.43 km) |
| Orthez to Provadia | 1,410.72 mi (2,270.34 km) |
| Orthez to Radnevo | 1,348.41 mi (2,170.06 km) |
| Orthez to Radomir | 1,195.97 mi (1,924.73 km) |
| Orthez to Rakitovo | 1,260.88 mi (2,029.18 km) |
| Orthez to Rakovski | 1,300.30 mi (2,092.63 km) |
| Orthez to Razgrad | 1,361.18 mi (2,190.61 km) |
| Orthez to Razlog | 1,231.61 mi (1,982.08 km) |
| Orthez to Ruse | 1,330.31 mi (2,140.93 km) |
| Orthez to Samokov | 1,229.17 mi (1,978.15 km) |
| Orthez to Sandanski | 1,227.58 mi (1,975.60 km) |
| Orthez to Sevlievo | 1,297.61 mi (2,088.31 km) |
| Orthez to Shumen | 1,384.72 mi (2,228.49 km) |
| Orthez to Silistra | 1,391.73 mi (2,239.77 km) |
| Orthez to Sliven | 1,362.78 mi (2,193.19 km) |
