| River Falls to Popovo | 5,277.49 mi (8,493.30 km) |
| River Falls to Provadia | 5,324.68 mi (8,569.25 km) |
| River Falls to Radnevo | 5,323.60 mi (8,567.51 km) |
| River Falls to Radomir | 5,211.60 mi (8,387.26 km) |
| River Falls to Rakitovo | 5,279.17 mi (8,496.00 km) |
| River Falls to Rakovski | 5,292.44 mi (8,517.36 km) |
| River Falls to Razgrad | 5,276.81 mi (8,492.20 km) |
| River Falls to Razlog | 5,263.69 mi (8,471.08 km) |
| River Falls to Ruse | 5,243.43 mi (8,438.49 km) |
| River Falls to Samokov | 5,242.99 mi (8,437.78 km) |
| River Falls to Sandanski | 5,273.89 mi (8,487.50 km) |
| River Falls to Sevlievo | 5,258.41 mi (8,462.60 km) |
| River Falls to Shumen | 5,303.43 mi (8,535.05 km) |
| River Falls to Silistra | 5,269.18 mi (8,479.93 km) |
| River Falls to Sliven | 5,316.20 mi (8,555.59 km) |
