| North Port to Popovo | 5,791.94 mi (9,321.23 km) |
| North Port to Provadia | 5,849.17 mi (9,413.32 km) |
| North Port to Radnevo | 5,817.21 mi (9,361.89 km) |
| North Port to Radomir | 5,677.63 mi (9,137.26 km) |
| North Port to Rakitovo | 5,747.41 mi (9,249.56 km) |
| North Port to Rakovski | 5,775.41 mi (9,294.62 km) |
| North Port to Razgrad | 5,797.32 mi (9,329.89 km) |
| North Port to Razlog | 5,723.56 mi (9,211.18 km) |
| North Port to Ruse | 5,762.87 mi (9,274.44 km) |
| North Port to Samokov | 5,711.72 mi (9,192.12 km) |
| North Port to Sandanski | 5,726.29 mi (9,215.57 km) |
| North Port to Sevlievo | 5,755.52 mi (9,262.61 km) |
| North Port to Shumen | 5,824.22 mi (9,373.17 km) |
| North Port to Silistra | 5,807.21 mi (9,345.80 km) |
| North Port to Sliven | 5,820.56 mi (9,367.28 km) |
