| Middleton to Popovo | 1,467.03 mi (2,360.95 km) |
| Middleton to Provadia | 1,521.42 mi (2,448.48 km) |
| Middleton to Radnevo | 1,501.77 mi (2,416.87 km) |
| Middleton to Radomir | 1,376.39 mi (2,215.09 km) |
| Middleton to Rakitovo | 1,445.58 mi (2,326.44 km) |
| Middleton to Rakovski | 1,465.06 mi (2,357.79 km) |
| Middleton to Razgrad | 1,470.30 mi (2,366.21 km) |
| Middleton to Razlog | 1,427.06 mi (2,296.64 km) |
| Middleton to Ruse | 1,435.81 mi (2,310.71 km) |
| Middleton to Samokov | 1,409.14 mi (2,267.78 km) |
| Middleton to Sandanski | 1,435.18 mi (2,309.70 km) |
| Middleton to Sevlievo | 1,437.55 mi (2,313.51 km) |
| Middleton to Shumen | 1,497.41 mi (2,409.85 km) |
| Middleton to Silistra | 1,475.23 mi (2,374.16 km) |
| Middleton to Sliven | 1,500.12 mi (2,414.21 km) |
