| Romeoville to Devnya | 5,344.40 mi (8,600.98 km) |
| Romeoville to Dimitrovgrad | 5,332.66 mi (8,582.09 km) |
| Romeoville to Dobrich | 5,336.13 mi (8,587.67 km) |
| Romeoville to Dospat | 5,300.12 mi (8,529.72 km) |
| Romeoville to Dupnitsa | 5,231.91 mi (8,419.94 km) |
| Romeoville to Elhovo | 5,361.52 mi (8,628.53 km) |
| Romeoville to Etropole | 5,236.68 mi (8,427.62 km) |
| Romeoville to Gabrovo | 5,283.00 mi (8,502.17 km) |
| Romeoville to Gorna Oryahovitsa | 5,282.98 mi (8,502.13 km) |
| Romeoville to Gotse Delchev | 5,288.22 mi (8,510.57 km) |
| Romeoville to Harmanli | 5,349.21 mi (8,608.72 km) |
| Romeoville to Haskovo | 5,337.21 mi (8,589.40 km) |
| Romeoville to Ihtiman | 5,249.15 mi (8,447.69 km) |
| Romeoville to Isperih | 5,294.01 mi (8,519.88 km) |
| Romeoville to Kardzhali | 5,343.91 mi (8,600.18 km) |
