| Quickborn to Popovo | 1,031.31 mi (1,659.73 km) |
| Quickborn to Provadia | 1,079.51 mi (1,737.30 km) |
| Quickborn to Radnevo | 1,078.32 mi (1,735.39 km) |
| Quickborn to Radomir | 976.16 mi (1,570.98 km) |
| Quickborn to Rakitovo | 1,040.82 mi (1,675.04 km) |
| Quickborn to Rakovski | 1,049.42 mi (1,688.87 km) |
| Quickborn to Razgrad | 1,030.96 mi (1,659.18 km) |
| Quickborn to Razlog | 1,029.20 mi (1,656.34 km) |
| Quickborn to Ruse | 997.39 mi (1,605.15 km) |
| Quickborn to Samokov | 1,005.46 mi (1,618.13 km) |
| Quickborn to Sandanski | 1,042.56 mi (1,677.84 km) |
| Quickborn to Sevlievo | 1,013.18 mi (1,630.55 km) |
| Quickborn to Shumen | 1,057.72 mi (1,702.24 km) |
| Quickborn to Silistra | 1,026.08 mi (1,651.32 km) |
| Quickborn to Sliven | 1,070.06 mi (1,722.09 km) |
