| Saco to Popovo | 4,539.93 mi (7,306.30 km) |
| Saco to Provadia | 4,594.52 mi (7,394.17 km) |
| Saco to Radnevo | 4,572.54 mi (7,358.79 km) |
| Saco to Radomir | 4,441.05 mi (7,147.17 km) |
| Saco to Rakitovo | 4,510.89 mi (7,259.58 km) |
| Saco to Rakovski | 4,533.96 mi (7,296.70 km) |
| Saco to Razgrad | 4,543.38 mi (7,311.86 km) |
| Saco to Razlog | 4,489.81 mi (7,225.66 km) |
| Saco to Ruse | 4,508.88 mi (7,256.34 km) |
| Saco to Samokov | 4,474.58 mi (7,201.14 km) |
| Saco to Sandanski | 4,495.35 mi (7,234.57 km) |
| Saco to Sevlievo | 4,508.91 mi (7,256.39 km) |
| Saco to Shumen | 4,570.49 mi (7,355.49 km) |
| Saco to Silistra | 4,547.78 mi (7,318.95 km) |
| Saco to Sliven | 4,572.25 mi (7,358.32 km) |
