| Romeoville to Redondela | 3,922.91 mi (6,313.32 km) |
| Romeoville to Reinosa | 4,097.00 mi (6,593.48 km) |
| Romeoville to Requena | 4,358.79 mi (7,014.80 km) |
| Romeoville to Reus | 4,392.83 mi (7,069.57 km) |
| Romeoville to Rianxo | 3,901.90 mi (6,279.50 km) |
| Romeoville to Ribadeo | 3,951.72 mi (6,359.68 km) |
| Romeoville to Rincon de la Victoria | 4,318.47 mi (6,949.90 km) |
| Romeoville to Ripoll | 4,399.53 mi (7,080.36 km) |
| Romeoville to Ripollet | 4,425.07 mi (7,121.47 km) |
| Romeoville to Rojales | 4,429.11 mi (7,127.97 km) |
| Romeoville to Ronda | 4,276.73 mi (6,882.73 km) |
| Romeoville to Roquetas de Mar | 4,393.79 mi (7,071.12 km) |
| Romeoville to Rosas | 4,439.05 mi (7,143.96 km) |
| Romeoville to Rubi | 4,419.84 mi (7,113.04 km) |
| Romeoville to Rute | 4,292.06 mi (6,907.40 km) |
