| Festus to River Ridge (Louisiana) | 570.82 mi (918.65 km) |
| Festus to Riverbank (California) | 1,655.82 mi (2,664.79 km) |
| Festus to Riverdale (Georgia) | 464.80 mi (748.03 km) |
| Festus to Riverdale (Illinois) | 278.49 mi (448.18 km) |
| Festus to Riverside (California) | 1,529.96 mi (2,462.23 km) |
| Festus to Riverside (Ohio) | 354.40 mi (570.35 km) |
| Festus to Riverton (Utah) | 1,159.24 mi (1,865.61 km) |
| Festus to Riverton (Wyoming) | 998.77 mi (1,607.37 km) |
| Festus to Riverview (Florida) | 857.40 mi (1,379.85 km) |
| Festus to Riverview (Michigan) | 468.33 mi (753.70 km) |
| Festus to Riviera Beach (Florida) | 992.14 mi (1,596.70 km) |
| Festus to Riviera Beach (Maryland) | 750.84 mi (1,208.37 km) |
| Festus to Roanoke (Virginia) | 574.37 mi (924.36 km) |
| Festus to Roanoke Rapids (North Carolina) | 711.09 mi (1,144.38 km) |
| Festus to Robbinsdale (Minnesota) | 493.85 mi (794.77 km) |
