| Isbergues to Popovo | 1,221.18 mi (1,965.29 km) |
| Isbergues to Provadia | 1,278.28 mi (2,057.20 km) |
| Isbergues to Radnevo | 1,249.19 mi (2,010.38 km) |
| Isbergues to Radomir | 1,116.22 mi (1,796.39 km) |
| Isbergues to Rakitovo | 1,186.04 mi (1,908.75 km) |
| Isbergues to Rakovski | 1,209.55 mi (1,946.58 km) |
| Isbergues to Razgrad | 1,226.43 mi (1,973.75 km) |
| Isbergues to Razlog | 1,165.32 mi (1,875.40 km) |
| Isbergues to Ruse | 1,191.98 mi (1,918.31 km) |
| Isbergues to Samokov | 1,149.72 mi (1,850.29 km) |
| Isbergues to Sandanski | 1,171.58 mi (1,885.47 km) |
| Isbergues to Sevlievo | 1,186.37 mi (1,909.28 km) |
| Isbergues to Shumen | 1,253.33 mi (2,017.04 km) |
| Isbergues to Silistra | 1,237.43 mi (1,991.45 km) |
| Isbergues to Sliven | 1,250.77 mi (2,012.92 km) |
