| Halstead to Popovo | 1,321.57 mi (2,126.86 km) |
| Halstead to Provadia | 1,377.40 mi (2,216.71 km) |
| Halstead to Radnevo | 1,353.02 mi (2,177.47 km) |
| Halstead to Radomir | 1,223.80 mi (1,969.51 km) |
| Halstead to Rakitovo | 1,293.36 mi (2,081.46 km) |
| Halstead to Rakovski | 1,314.82 mi (2,116.00 km) |
| Halstead to Razgrad | 1,325.84 mi (2,133.73 km) |
| Halstead to Razlog | 1,273.76 mi (2,049.91 km) |
| Halstead to Ruse | 1,291.31 mi (2,078.17 km) |
| Halstead to Samokov | 1,256.94 mi (2,022.84 km) |
| Halstead to Sandanski | 1,280.99 mi (2,061.55 km) |
| Halstead to Sevlievo | 1,289.41 mi (2,075.10 km) |
| Halstead to Shumen | 1,352.88 mi (2,177.25 km) |
| Halstead to Silistra | 1,333.83 mi (2,146.59 km) |
| Halstead to Sliven | 1,352.96 mi (2,177.39 km) |
