| Holborn to Popovo | 1,344.86 mi (2,164.35 km) |
| Holborn to Provadia | 1,401.38 mi (2,255.30 km) |
| Holborn to Radnevo | 1,374.39 mi (2,211.87 km) |
| Holborn to Radomir | 1,242.74 mi (2,000.00 km) |
| Holborn to Rakitovo | 1,312.49 mi (2,112.26 km) |
| Holborn to Rakovski | 1,335.30 mi (2,148.96 km) |
| Holborn to Razgrad | 1,349.65 mi (2,172.05 km) |
| Holborn to Razlog | 1,292.10 mi (2,079.43 km) |
| Holborn to Ruse | 1,315.15 mi (2,116.53 km) |
| Holborn to Samokov | 1,276.13 mi (2,053.73 km) |
| Holborn to Sandanski | 1,298.61 mi (2,089.92 km) |
| Holborn to Sevlievo | 1,311.23 mi (2,110.22 km) |
| Holborn to Shumen | 1,376.63 mi (2,215.47 km) |
| Holborn to Silistra | 1,359.12 mi (2,187.30 km) |
| Holborn to Sliven | 1,375.29 mi (2,213.31 km) |
