| Gastonia to Devnya | 5,405.61 mi (8,699.48 km) |
| Gastonia to Dimitrovgrad | 5,375.03 mi (8,650.28 km) |
| Gastonia to Dobrich | 5,401.33 mi (8,692.59 km) |
| Gastonia to Dospat | 5,332.18 mi (8,581.31 km) |
| Gastonia to Dupnitsa | 5,263.64 mi (8,471.01 km) |
| Gastonia to Elhovo | 5,409.66 mi (8,706.01 km) |
| Gastonia to Etropole | 5,277.25 mi (8,492.91 km) |
| Gastonia to Gabrovo | 5,330.39 mi (8,578.44 km) |
| Gastonia to Gorna Oryahovitsa | 5,334.26 mi (8,584.66 km) |
| Gastonia to Gotse Delchev | 5,317.45 mi (8,557.61 km) |
| Gastonia to Harmanli | 5,392.19 mi (8,677.89 km) |
| Gastonia to Haskovo | 5,378.50 mi (8,655.87 km) |
| Gastonia to Ihtiman | 5,285.68 mi (8,506.48 km) |
| Gastonia to Isperih | 5,355.39 mi (8,618.67 km) |
| Gastonia to Kardzhali | 5,382.00 mi (8,661.49 km) |
