| Romeoville to Solymar | 4,832.84 mi (7,777.71 km) |
| Romeoville to Sopron | 4,744.76 mi (7,635.95 km) |
| Romeoville to Szarvas | 4,923.06 mi (7,922.91 km) |
| Romeoville to Szazhalombatta | 4,845.34 mi (7,797.81 km) |
| Romeoville to Szeged | 4,936.70 mi (7,944.86 km) |
| Romeoville to Szeghalom | 4,937.36 mi (7,945.91 km) |
| Romeoville to Szekesfehervar | 4,832.00 mi (7,776.36 km) |
| Romeoville to Szekszard | 4,880.28 mi (7,854.04 km) |
| Romeoville to Szentendre | 4,832.70 mi (7,777.47 km) |
| Romeoville to Szentes | 4,922.60 mi (7,922.16 km) |
| Romeoville to Szentgotthard | 4,765.79 mi (7,669.80 km) |
| Romeoville to Szigethalom | 4,848.01 mi (7,802.13 km) |
| Romeoville to Szigetszentmiklos | 4,848.10 mi (7,802.26 km) |
| Romeoville to Szigetvar | 4,861.20 mi (7,823.35 km) |
| Romeoville to Szolnok | 4,896.50 mi (7,880.15 km) |
