| Welling to Devnya | 1,395.36 mi (2,245.61 km) |
| Welling to Dimitrovgrad | 1,360.69 mi (2,189.82 km) |
| Welling to Dobrich | 1,393.30 mi (2,242.31 km) |
| Welling to Dospat | 1,319.78 mi (2,123.98 km) |
| Welling to Dupnitsa | 1,251.18 mi (2,013.58 km) |
| Welling to Elhovo | 1,395.49 mi (2,245.83 km) |
| Welling to Etropole | 1,262.96 mi (2,032.53 km) |
| Welling to Gabrovo | 1,316.25 mi (2,118.29 km) |
| Welling to Gorna Oryahovitsa | 1,320.79 mi (2,125.61 km) |
| Welling to Gotse Delchev | 1,306.11 mi (2,101.98 km) |
| Welling to Harmanli | 1,377.83 mi (2,217.41 km) |
| Welling to Haskovo | 1,364.23 mi (2,195.52 km) |
| Welling to Ihtiman | 1,271.95 mi (2,047.01 km) |
| Welling to Isperih | 1,345.66 mi (2,165.63 km) |
| Welling to Kardzhali | 1,368.14 mi (2,201.81 km) |
