| Romeoville to Sabadell | 4,420.95 mi (7,114.84 km) |
| Romeoville to Sabinanigo | 4,278.05 mi (6,884.86 km) |
| Romeoville to Sagunto | 4,388.44 mi (7,062.52 km) |
| Romeoville to Salamanca | 4,100.48 mi (6,599.08 km) |
| Romeoville to Salobrena | 4,349.59 mi (6,999.99 km) |
| Romeoville to Salou | 4,396.69 mi (7,075.79 km) |
| Romeoville to Salt | 4,433.66 mi (7,135.29 km) |
| Romeoville to Salvatierra de Mino | 3,934.78 mi (6,332.41 km) |
| Romeoville to Sama | 4,019.14 mi (6,468.18 km) |
| Romeoville to San Adrian de Besos | 4,430.25 mi (7,129.79 km) |
| Romeoville to San Agustin de Guadalix | 4,202.49 mi (6,763.25 km) |
| Romeoville to San Andres de la Barca | 4,419.19 mi (7,111.99 km) |
| Romeoville to San Andres de Llevaneras | 4,436.11 mi (7,139.24 km) |
| Romeoville to San Andres del Rabanedo | 4,046.06 mi (6,511.50 km) |
| Romeoville to San Bartolome | 4,102.43 mi (6,602.23 km) |
