| Barrhead to Devnya | 1,654.77 mi (2,663.09 km) |
| Barrhead to Dimitrovgrad | 1,639.50 mi (2,638.51 km) |
| Barrhead to Dobrich | 1,648.28 mi (2,652.66 km) |
| Barrhead to Dospat | 1,608.69 mi (2,588.94 km) |
| Barrhead to Dupnitsa | 1,540.89 mi (2,479.82 km) |
| Barrhead to Elhovo | 1,668.57 mi (2,685.30 km) |
| Barrhead to Etropole | 1,543.72 mi (2,484.38 km) |
| Barrhead to Gabrovo | 1,589.91 mi (2,558.72 km) |
| Barrhead to Gorna Oryahovitsa | 1,590.35 mi (2,559.42 km) |
| Barrhead to Gotse Delchev | 1,597.77 mi (2,571.36 km) |
| Barrhead to Harmanli | 1,656.02 mi (2,665.11 km) |
| Barrhead to Haskovo | 1,644.09 mi (2,645.90 km) |
| Barrhead to Ihtiman | 1,556.79 mi (2,505.42 km) |
| Barrhead to Isperih | 1,604.31 mi (2,581.89 km) |
| Barrhead to Kardzhali | 1,651.08 mi (2,657.16 km) |
