| Sittard to Devnya | 1,147.46 mi (1,846.66 km) |
| Sittard to Dimitrovgrad | 1,118.06 mi (1,799.35 km) |
| Sittard to Dobrich | 1,144.59 mi (1,842.05 km) |
| Sittard to Dospat | 1,081.24 mi (1,740.09 km) |
| Sittard to Dupnitsa | 1,012.84 mi (1,630.02 km) |
| Sittard to Elhovo | 1,151.03 mi (1,852.41 km) |
| Sittard to Etropole | 1,020.80 mi (1,642.81 km) |
| Sittard to Gabrovo | 1,071.77 mi (1,724.85 km) |
| Sittard to Gorna Oryahovitsa | 1,075.12 mi (1,730.25 km) |
| Sittard to Gotse Delchev | 1,068.88 mi (1,720.20 km) |
| Sittard to Harmanli | 1,135.03 mi (1,826.65 km) |
| Sittard to Haskovo | 1,122.00 mi (1,805.68 km) |
| Sittard to Ihtiman | 1,031.46 mi (1,659.98 km) |
| Sittard to Isperih | 1,097.51 mi (1,766.28 km) |
| Sittard to Kardzhali | 1,127.11 mi (1,813.91 km) |
