| Erquelinnes to Provadia | 1,201.96 mi (1,934.37 km) |
| Erquelinnes to Radnevo | 1,172.91 mi (1,887.61 km) |
| Erquelinnes to Radomir | 1,040.34 mi (1,674.27 km) |
| Erquelinnes to Rakitovo | 1,110.13 mi (1,786.58 km) |
| Erquelinnes to Rakovski | 1,133.37 mi (1,823.99 km) |
| Erquelinnes to Razgrad | 1,150.10 mi (1,850.91 km) |
| Erquelinnes to Razlog | 1,089.61 mi (1,753.55 km) |
| Erquelinnes to Ruse | 1,115.66 mi (1,795.47 km) |
| Erquelinnes to Samokov | 1,073.78 mi (1,728.09 km) |
| Erquelinnes to Sandanski | 1,096.08 mi (1,763.98 km) |
| Erquelinnes to Sevlievo | 1,110.04 mi (1,786.44 km) |
| Erquelinnes to Shumen | 1,176.99 mi (1,894.19 km) |
| Erquelinnes to Silistra | 1,161.28 mi (1,868.90 km) |
| Erquelinnes to Sliven | 1,174.42 mi (1,890.05 km) |
| Erquelinnes to Smolyan | 1,152.19 mi (1,854.27 km) |
