| Sint-Niklaas to Dimitrovgrad | 1,191.23 mi (1,917.10 km) |
| Sint-Niklaas to Dobrich | 1,219.88 mi (1,963.21 km) |
| Sint-Niklaas to Dospat | 1,152.97 mi (1,855.52 km) |
| Sint-Niklaas to Dupnitsa | 1,084.46 mi (1,745.28 km) |
| Sint-Niklaas to Elhovo | 1,224.84 mi (1,971.19 km) |
| Sint-Niklaas to Etropole | 1,093.76 mi (1,760.24 km) |
| Sint-Niklaas to Gabrovo | 1,145.57 mi (1,843.61 km) |
| Sint-Niklaas to Gorna Oryahovitsa | 1,149.34 mi (1,849.68 km) |
| Sint-Niklaas to Gotse Delchev | 1,140.15 mi (1,834.89 km) |
| Sint-Niklaas to Harmanli | 1,208.26 mi (1,944.50 km) |
| Sint-Niklaas to Haskovo | 1,195.03 mi (1,923.21 km) |
| Sint-Niklaas to Ihtiman | 1,103.85 mi (1,776.47 km) |
| Sint-Niklaas to Isperih | 1,172.60 mi (1,887.11 km) |
| Sint-Niklaas to Kardzhali | 1,199.72 mi (1,930.77 km) |
| Sint-Niklaas to Karlovo | 1,133.97 mi (1,824.95 km) |
