| Oak Forest to Roy (Utah) | 1,255.60 mi (2,020.70 km) |
| Oak Forest to Royal Kunia (Hawaii) | 4,248.85 mi (6,837.86 km) |
| Oak Forest to Royal Oak (Michigan) | 244.00 mi (392.67 km) |
| Oak Forest to Royal Palm Beach (Florida) | 1,114.81 mi (1,794.11 km) |
| Oak Forest to Royse City (Texas) | 758.83 mi (1,221.22 km) |
| Oak Forest to Ruskin (Florida) | 1,006.44 mi (1,619.71 km) |
| Oak Forest to Russellville (Alabama) | 490.56 mi (789.48 km) |
| Oak Forest to Russellville (Arkansas) | 525.27 mi (845.34 km) |
| Oak Forest to Ruston (Louisiana) | 681.91 mi (1,097.44 km) |
| Oak Forest to Rutherford (New Jersey) | 710.65 mi (1,143.68 km) |
| Oak Forest to Rutland (Vermont) | 762.90 mi (1,227.78 km) |
| Oak Forest to Sabana Grande (Puerto Rico) | 2,036.03 mi (3,276.68 km) |
| Oak Forest to Sachse (Texas) | 767.98 mi (1,235.95 km) |
| Oak Forest to Saco (Maine) | 888.19 mi (1,429.40 km) |
| Oak Forest to Sacramento (California) | 1,783.14 mi (2,869.69 km) |
