| Giffnock to Devnya | 1,651.37 mi (2,657.63 km) |
| Giffnock to Dimitrovgrad | 1,636.23 mi (2,633.25 km) |
| Giffnock to Dobrich | 1,644.87 mi (2,647.16 km) |
| Giffnock to Dospat | 1,605.50 mi (2,583.81 km) |
| Giffnock to Dupnitsa | 1,537.71 mi (2,474.71 km) |
| Giffnock to Elhovo | 1,665.25 mi (2,679.97 km) |
| Giffnock to Etropole | 1,540.48 mi (2,479.16 km) |
| Giffnock to Gabrovo | 1,586.61 mi (2,553.41 km) |
| Giffnock to Gorna Oryahovitsa | 1,587.02 mi (2,554.07 km) |
| Giffnock to Gotse Delchev | 1,594.60 mi (2,566.26 km) |
| Giffnock to Harmanli | 1,652.75 mi (2,659.84 km) |
| Giffnock to Haskovo | 1,640.82 mi (2,640.65 km) |
| Giffnock to Ihtiman | 1,553.58 mi (2,500.24 km) |
| Giffnock to Isperih | 1,600.92 mi (2,576.43 km) |
| Giffnock to Kardzhali | 1,647.84 mi (2,651.95 km) |
