| Waltham Cross to Popovo | 1,344.43 mi (2,163.64 km) |
| Waltham Cross to Provadia | 1,400.72 mi (2,254.24 km) |
| Waltham Cross to Radnevo | 1,374.56 mi (2,212.15 km) |
| Waltham Cross to Radomir | 1,243.64 mi (2,001.45 km) |
| Waltham Cross to Rakitovo | 1,313.35 mi (2,113.63 km) |
| Waltham Cross to Rakovski | 1,335.75 mi (2,149.68 km) |
| Waltham Cross to Razgrad | 1,349.04 mi (2,171.07 km) |
| Waltham Cross to Razlog | 1,293.19 mi (2,081.18 km) |
| Waltham Cross to Ruse | 1,314.53 mi (2,115.54 km) |
| Waltham Cross to Samokov | 1,276.96 mi (2,055.07 km) |
| Waltham Cross to Sandanski | 1,299.91 mi (2,092.01 km) |
| Waltham Cross to Sevlievo | 1,311.25 mi (2,110.26 km) |
| Waltham Cross to Shumen | 1,376.05 mi (2,214.53 km) |
| Waltham Cross to Silistra | 1,358.03 mi (2,185.54 km) |
| Waltham Cross to Sliven | 1,375.16 mi (2,213.11 km) |
