| Waterloo to Provadia | 1,198.65 mi (1,929.04 km) |
| Waterloo to Radnevo | 1,172.02 mi (1,886.18 km) |
| Waterloo to Radomir | 1,041.64 mi (1,676.35 km) |
| Waterloo to Rakitovo | 1,111.27 mi (1,788.41 km) |
| Waterloo to Rakovski | 1,133.29 mi (1,823.86 km) |
| Waterloo to Razgrad | 1,146.91 mi (1,845.77 km) |
| Waterloo to Razlog | 1,091.45 mi (1,756.52 km) |
| Waterloo to Ruse | 1,112.42 mi (1,790.26 km) |
| Waterloo to Samokov | 1,074.86 mi (1,729.82 km) |
| Waterloo to Sandanski | 1,098.57 mi (1,767.98 km) |
| Waterloo to Sevlievo | 1,108.71 mi (1,784.30 km) |
| Waterloo to Shumen | 1,173.89 mi (1,889.19 km) |
| Waterloo to Silistra | 1,156.67 mi (1,861.48 km) |
| Waterloo to Sliven | 1,172.66 mi (1,887.21 km) |
| Waterloo to Smolyan | 1,153.37 mi (1,856.17 km) |
