| Duncanville to Devnya | 6,131.28 mi (9,867.34 km) |
| Duncanville to Dimitrovgrad | 6,118.44 mi (9,846.68 km) |
| Duncanville to Dobrich | 6,123.13 mi (9,854.22 km) |
| Duncanville to Dospat | 6,084.92 mi (9,792.74 km) |
| Duncanville to Dupnitsa | 6,016.60 mi (9,682.79 km) |
| Duncanville to Elhovo | 6,147.74 mi (9,893.83 km) |
| Duncanville to Etropole | 6,022.23 mi (9,691.84 km) |
| Duncanville to Gabrovo | 6,069.12 mi (9,767.30 km) |
| Duncanville to Gorna Oryahovitsa | 6,069.35 mi (9,767.67 km) |
| Duncanville to Gotse Delchev | 6,072.70 mi (9,773.07 km) |
| Duncanville to Harmanli | 6,135.05 mi (9,873.41 km) |
| Duncanville to Haskovo | 6,122.90 mi (9,853.86 km) |
| Duncanville to Ihtiman | 6,034.34 mi (9,711.34 km) |
| Duncanville to Isperih | 6,080.87 mi (9,786.22 km) |
| Duncanville to Kardzhali | 6,129.33 mi (9,864.21 km) |
