| Cachan to Popovo | 1,199.97 mi (1,931.16 km) |
| Cachan to Provadia | 1,259.10 mi (2,026.33 km) |
| Cachan to Radnevo | 1,220.76 mi (1,964.63 km) |
| Cachan to Radomir | 1,080.46 mi (1,738.83 km) |
| Cachan to Rakitovo | 1,150.30 mi (1,851.22 km) |
| Cachan to Rakovski | 1,178.29 mi (1,896.27 km) |
| Cachan to Razgrad | 1,207.11 mi (1,942.65 km) |
| Cachan to Razlog | 1,127.04 mi (1,813.80 km) |
| Cachan to Ruse | 1,173.09 mi (1,887.90 km) |
| Cachan to Samokov | 1,114.50 mi (1,793.62 km) |
| Cachan to Sandanski | 1,130.83 mi (1,819.90 km) |
| Cachan to Sevlievo | 1,160.09 mi (1,866.99 km) |
| Cachan to Shumen | 1,233.50 mi (1,985.13 km) |
| Cachan to Silistra | 1,223.63 mi (1,969.25 km) |
| Cachan to Sliven | 1,225.73 mi (1,972.61 km) |
