| Castelsarrasin to Popovo | 1,251.26 mi (2,013.71 km) |
| Castelsarrasin to Provadia | 1,312.72 mi (2,112.62 km) |
| Castelsarrasin to Radnevo | 1,252.03 mi (2,014.95 km) |
| Castelsarrasin to Radomir | 1,100.02 mi (1,770.31 km) |
| Castelsarrasin to Rakitovo | 1,165.64 mi (1,875.91 km) |
| Castelsarrasin to Rakovski | 1,204.21 mi (1,938.00 km) |
| Castelsarrasin to Razgrad | 1,262.89 mi (2,032.43 km) |
| Castelsarrasin to Razlog | 1,136.79 mi (1,829.49 km) |
| Castelsarrasin to Ruse | 1,231.74 mi (1,982.30 km) |
| Castelsarrasin to Samokov | 1,133.43 mi (1,824.08 km) |
| Castelsarrasin to Sandanski | 1,133.49 mi (1,824.18 km) |
| Castelsarrasin to Sevlievo | 1,200.29 mi (1,931.69 km) |
| Castelsarrasin to Shumen | 1,286.68 mi (2,070.71 km) |
| Castelsarrasin to Silistra | 1,292.66 mi (2,080.34 km) |
| Castelsarrasin to Sliven | 1,265.70 mi (2,036.95 km) |
