| Darton to Popovo | 1,442.05 mi (2,320.76 km) |
| Darton to Provadia | 1,496.25 mi (2,407.98 km) |
| Darton to Radnevo | 1,477.28 mi (2,377.45 km) |
| Darton to Radomir | 1,352.66 mi (2,176.90 km) |
| Darton to Rakitovo | 1,421.76 mi (2,288.10 km) |
| Darton to Rakovski | 1,440.84 mi (2,318.80 km) |
| Darton to Razgrad | 1,445.19 mi (2,325.81 km) |
| Darton to Razlog | 1,403.48 mi (2,258.69 km) |
| Darton to Ruse | 1,410.71 mi (2,270.32 km) |
| Darton to Samokov | 1,385.31 mi (2,229.44 km) |
| Darton to Sandanski | 1,411.81 mi (2,272.09 km) |
| Darton to Sevlievo | 1,412.98 mi (2,273.96 km) |
| Darton to Shumen | 1,472.31 mi (2,369.45 km) |
| Darton to Silistra | 1,449.77 mi (2,333.19 km) |
| Darton to Sliven | 1,475.38 mi (2,374.39 km) |
