| Southport to Devnya | 1,559.29 mi (2,509.44 km) |
| Southport to Dimitrovgrad | 1,534.00 mi (2,468.74 km) |
| Southport to Dobrich | 1,555.03 mi (2,502.57 km) |
| Southport to Dospat | 1,497.78 mi (2,410.45 km) |
| Southport to Dupnitsa | 1,429.38 mi (2,300.37 km) |
| Southport to Elhovo | 1,566.13 mi (2,520.45 km) |
| Southport to Etropole | 1,436.93 mi (2,312.51 km) |
| Southport to Gabrovo | 1,486.94 mi (2,393.00 km) |
| Southport to Gorna Oryahovitsa | 1,489.50 mi (2,397.11 km) |
| Southport to Gotse Delchev | 1,485.36 mi (2,390.46 km) |
| Southport to Harmanli | 1,550.89 mi (2,495.92 km) |
| Southport to Haskovo | 1,538.05 mi (2,475.26 km) |
| Southport to Ihtiman | 1,447.90 mi (2,330.17 km) |
| Southport to Isperih | 1,509.05 mi (2,428.58 km) |
| Southport to Kardzhali | 1,543.44 mi (2,483.93 km) |
