| Romeoville to Los Llanos de Aridane | 3,956.83 mi (6,367.90 km) |
| Romeoville to Los Palacios y Villafranca | 4,225.57 mi (6,800.40 km) |
| Romeoville to Luanco | 4,004.02 mi (6,443.84 km) |
| Romeoville to Lucena | 4,283.56 mi (6,893.72 km) |
| Romeoville to Lugo | 3,946.29 mi (6,350.93 km) |
| Romeoville to Lumbreras | 4,400.15 mi (7,081.36 km) |
| Romeoville to Madrid | 4,208.00 mi (6,772.12 km) |
| Romeoville to Madridejos | 4,250.34 mi (6,840.27 km) |
| Romeoville to Mahon | 4,578.96 mi (7,369.13 km) |
| Romeoville to Mairena del Alcor | 4,226.91 mi (6,802.55 km) |
| Romeoville to Mairena del Aljarafe | 4,212.65 mi (6,779.60 km) |
| Romeoville to Majadahonda | 4,198.41 mi (6,756.69 km) |
| Romeoville to Malaga | 4,312.02 mi (6,939.53 km) |
| Romeoville to Malgrat de Mar | 4,444.47 mi (7,152.68 km) |
| Romeoville to Manacor | 4,545.83 mi (7,315.80 km) |
