| Watervliet to Popovo | 4,702.96 mi (7,568.68 km) |
| Watervliet to Provadia | 4,757.09 mi (7,655.80 km) |
| Watervliet to Radnevo | 4,736.60 mi (7,622.81 km) |
| Watervliet to Radomir | 4,606.27 mi (7,413.07 km) |
| Watervliet to Rakitovo | 4,676.05 mi (7,525.38 km) |
| Watervliet to Rakovski | 4,698.48 mi (7,561.47 km) |
| Watervliet to Razgrad | 4,706.11 mi (7,573.75 km) |
| Watervliet to Razlog | 4,655.32 mi (7,492.02 km) |
| Watervliet to Ruse | 4,671.64 mi (7,518.28 km) |
| Watervliet to Samokov | 4,639.70 mi (7,466.88 km) |
| Watervliet to Sandanski | 4,661.18 mi (7,501.45 km) |
| Watervliet to Sevlievo | 4,672.76 mi (7,520.08 km) |
| Watervliet to Shumen | 4,733.23 mi (7,617.40 km) |
| Watervliet to Silistra | 4,709.62 mi (7,579.40 km) |
| Watervliet to Sliven | 4,735.80 mi (7,621.53 km) |
