| Cahokia to Roy (Utah) | 1,170.45 mi (1,883.65 km) |
| Cahokia to Royal Kunia (Hawaii) | 4,136.65 mi (6,657.29 km) |
| Cahokia to Royal Oak (Michigan) | 458.35 mi (737.64 km) |
| Cahokia to Royal Palm Beach (Florida) | 1,002.11 mi (1,612.75 km) |
| Cahokia to Royse City (Texas) | 516.95 mi (831.96 km) |
| Cahokia to Ruskin (Florida) | 873.44 mi (1,405.67 km) |
| Cahokia to Russellville (Alabama) | 311.71 mi (501.65 km) |
| Cahokia to Russellville (Arkansas) | 279.87 mi (450.41 km) |
| Cahokia to Ruston (Louisiana) | 439.02 mi (706.54 km) |
| Cahokia to Rutherford (New Jersey) | 867.36 mi (1,395.89 km) |
| Cahokia to Rutland (Vermont) | 958.93 mi (1,543.25 km) |
| Cahokia to Sabana Grande (Puerto Rico) | 1,987.45 mi (3,198.50 km) |
| Cahokia to Sachse (Texas) | 527.00 mi (848.12 km) |
| Cahokia to Saco (Maine) | 1,080.20 mi (1,738.42 km) |
| Cahokia to Sacramento (California) | 1,682.04 mi (2,706.98 km) |
