| Upland to Popovo | 6,620.33 mi (10,654.39 km) |
| Upland to Provadia | 6,659.61 mi (10,717.60 km) |
| Upland to Radnevo | 6,675.98 mi (10,743.95 km) |
| Upland to Radomir | 6,583.35 mi (10,594.88 km) |
| Upland to Rakitovo | 6,646.98 mi (10,697.29 km) |
| Upland to Rakovski | 6,651.94 mi (10,705.26 km) |
| Upland to Razgrad | 6,616.23 mi (10,647.79 km) |
| Upland to Razlog | 6,636.44 mi (10,680.31 km) |
| Upland to Ruse | 6,584.99 mi (10,597.52 km) |
| Upland to Samokov | 6,612.06 mi (10,641.09 km) |
| Upland to Sandanski | 6,650.01 mi (10,702.16 km) |
| Upland to Sevlievo | 6,611.75 mi (10,640.58 km) |
| Upland to Shumen | 6,641.47 mi (10,688.42 km) |
| Upland to Silistra | 6,598.78 mi (10,619.72 km) |
| Upland to Sliven | 6,662.96 mi (10,723.00 km) |
