| Williston to Popovo | 5,418.16 mi (8,719.69 km) |
| Williston to Provadia | 5,459.25 mi (8,785.81 km) |
| Williston to Radnevo | 5,472.06 mi (8,806.43 km) |
| Williston to Radomir | 5,375.99 mi (8,651.81 km) |
| Williston to Rakitovo | 5,440.32 mi (8,755.35 km) |
| Williston to Rakovski | 5,446.66 mi (8,765.56 km) |
| Williston to Razgrad | 5,414.77 mi (8,714.23 km) |
| Williston to Razlog | 5,429.02 mi (8,737.16 km) |
| Williston to Ruse | 5,383.00 mi (8,663.10 km) |
| Williston to Samokov | 5,405.15 mi (8,698.74 km) |
| Williston to Sandanski | 5,442.14 mi (8,758.28 km) |
| Williston to Sevlievo | 5,407.50 mi (8,702.52 km) |
| Williston to Shumen | 5,440.38 mi (8,755.45 km) |
| Williston to Silistra | 5,399.45 mi (8,689.57 km) |
| Williston to Sliven | 5,460.10 mi (8,787.19 km) |
