| North Decatur to Popovo | 5,541.63 mi (8,918.39 km) |
| North Decatur to Provadia | 5,596.19 mi (9,006.19 km) |
| North Decatur to Radnevo | 5,574.11 mi (8,970.66 km) |
| North Decatur to Radomir | 5,442.06 mi (8,758.15 km) |
| North Decatur to Rakitovo | 5,511.94 mi (8,870.61 km) |
| North Decatur to Rakovski | 5,535.36 mi (8,908.30 km) |
| North Decatur to Razgrad | 5,545.06 mi (8,923.91 km) |
| North Decatur to Razlog | 5,490.60 mi (8,836.27 km) |
| North Decatur to Ruse | 5,510.57 mi (8,868.40 km) |
| North Decatur to Samokov | 5,475.66 mi (8,812.22 km) |
| North Decatur to Sandanski | 5,495.86 mi (8,844.73 km) |
| North Decatur to Sevlievo | 5,510.53 mi (8,868.35 km) |
| North Decatur to Shumen | 5,572.18 mi (8,967.55 km) |
| North Decatur to Silistra | 5,549.27 mi (8,930.69 km) |
| North Decatur to Sliven | 5,573.92 mi (8,970.36 km) |
