| Grayslake to Redondela | 3,895.94 mi (6,269.91 km) |
| Grayslake to Reinosa | 4,068.15 mi (6,547.05 km) |
| Grayslake to Requena | 4,331.36 mi (6,970.66 km) |
| Grayslake to Reus | 4,363.58 mi (7,022.50 km) |
| Grayslake to Rianxo | 3,874.71 mi (6,235.75 km) |
| Grayslake to Ribadeo | 3,923.35 mi (6,314.03 km) |
| Grayslake to Rincon de la Victoria | 4,294.06 mi (6,910.62 km) |
| Grayslake to Ripoll | 4,369.28 mi (7,031.67 km) |
| Grayslake to Ripollet | 4,395.27 mi (7,073.51 km) |
| Grayslake to Rojales | 4,402.48 mi (7,085.11 km) |
| Grayslake to Ronda | 4,252.64 mi (6,843.96 km) |
| Grayslake to Roquetas de Mar | 4,368.73 mi (7,030.79 km) |
| Grayslake to Rosas | 4,408.45 mi (7,094.71 km) |
| Grayslake to Rubi | 4,390.08 mi (7,065.15 km) |
| Grayslake to Rute | 4,267.26 mi (6,867.49 km) |
