| Middle Island to Devnya | 4,812.61 mi (7,745.15 km) |
| Middle Island to Dimitrovgrad | 4,781.77 mi (7,695.51 km) |
| Middle Island to Dobrich | 4,808.48 mi (7,738.49 km) |
| Middle Island to Dospat | 4,739.02 mi (7,626.72 km) |
| Middle Island to Dupnitsa | 4,670.48 mi (7,516.41 km) |
| Middle Island to Elhovo | 4,816.41 mi (7,751.26 km) |
| Middle Island to Etropole | 4,683.99 mi (7,538.15 km) |
| Middle Island to Gabrovo | 4,737.14 mi (7,623.69 km) |
| Middle Island to Gorna Oryahovitsa | 4,741.05 mi (7,629.98 km) |
| Middle Island to Gotse Delchev | 4,724.36 mi (7,603.13 km) |
| Middle Island to Harmanli | 4,798.92 mi (7,723.12 km) |
| Middle Island to Haskovo | 4,785.24 mi (7,701.10 km) |
| Middle Island to Ihtiman | 4,692.45 mi (7,551.77 km) |
| Middle Island to Isperih | 4,762.42 mi (7,664.38 km) |
| Middle Island to Kardzhali | 4,788.76 mi (7,706.76 km) |
