| Belfast to Devnya | 1,690.30 mi (2,720.28 km) |
| Belfast to Dimitrovgrad | 1,667.32 mi (2,683.29 km) |
| Belfast to Dobrich | 1,685.43 mi (2,712.44 km) |
| Belfast to Dospat | 1,632.03 mi (2,626.50 km) |
| Belfast to Dupnitsa | 1,563.69 mi (2,516.52 km) |
| Belfast to Elhovo | 1,698.83 mi (2,734.01 km) |
| Belfast to Etropole | 1,570.45 mi (2,527.40 km) |
| Belfast to Gabrovo | 1,619.72 mi (2,606.69 km) |
| Belfast to Gorna Oryahovitsa | 1,621.80 mi (2,610.04 km) |
| Belfast to Gotse Delchev | 1,619.82 mi (2,606.85 km) |
| Belfast to Harmanli | 1,684.15 mi (2,710.38 km) |
| Belfast to Haskovo | 1,671.48 mi (2,689.99 km) |
| Belfast to Ihtiman | 1,581.81 mi (2,545.67 km) |
| Belfast to Isperih | 1,639.97 mi (2,639.28 km) |
| Belfast to Kardzhali | 1,677.17 mi (2,699.14 km) |
