| Bois-Guillaume to Popovo | 1,261.84 mi (2,030.74 km) |
| Bois-Guillaume to Provadia | 1,320.44 mi (2,125.05 km) |
| Bois-Guillaume to Radnevo | 1,284.68 mi (2,067.50 km) |
| Bois-Guillaume to Radomir | 1,146.10 mi (1,844.46 km) |
| Bois-Guillaume to Rakitovo | 1,216.01 mi (1,956.97 km) |
| Bois-Guillaume to Rakovski | 1,242.91 mi (2,000.27 km) |
| Bois-Guillaume to Razgrad | 1,268.44 mi (2,041.35 km) |
| Bois-Guillaume to Razlog | 1,193.33 mi (1,920.48 km) |
| Bois-Guillaume to Ruse | 1,234.25 mi (1,986.33 km) |
| Bois-Guillaume to Samokov | 1,180.05 mi (1,899.11 km) |
| Bois-Guillaume to Sandanski | 1,197.69 mi (1,927.49 km) |
| Bois-Guillaume to Sevlievo | 1,223.36 mi (1,968.81 km) |
| Bois-Guillaume to Shumen | 1,295.01 mi (2,084.12 km) |
| Bois-Guillaume to Silistra | 1,283.28 mi (2,065.24 km) |
| Bois-Guillaume to Sliven | 1,288.73 mi (2,074.01 km) |
