| Castellanza to Devnya | 933.80 mi (1,502.80 km) |
| Castellanza to Dimitrovgrad | 866.21 mi (1,394.03 km) |
| Castellanza to Dobrich | 940.02 mi (1,512.81 km) |
| Castellanza to Dospat | 809.61 mi (1,302.93 km) |
| Castellanza to Dupnitsa | 743.13 mi (1,195.95 km) |
| Castellanza to Elhovo | 909.28 mi (1,463.34 km) |
| Castellanza to Etropole | 770.68 mi (1,240.30 km) |
| Castellanza to Gabrovo | 833.70 mi (1,341.72 km) |
| Castellanza to Gorna Oryahovitsa | 845.57 mi (1,360.82 km) |
| Castellanza to Gotse Delchev | 791.82 mi (1,274.31 km) |
| Castellanza to Harmanli | 883.53 mi (1,421.90 km) |
| Castellanza to Haskovo | 867.71 mi (1,396.44 km) |
| Castellanza to Ihtiman | 771.58 mi (1,241.75 km) |
| Castellanza to Isperih | 889.04 mi (1,430.77 km) |
| Castellanza to Kardzhali | 866.01 mi (1,393.70 km) |
