| Festus to Carrollwood (Florida) | 836.80 mi (1,346.70 km) |
| Festus to Carson (California) | 1,578.91 mi (2,541.02 km) |
| Festus to Carson City (Nevada) | 1,576.71 mi (2,537.47 km) |
| Festus to Carteret (New Jersey) | 877.90 mi (1,412.85 km) |
| Festus to Cartersville (Georgia) | 419.74 mi (675.50 km) |
| Festus to Carthage (Missouri) | 226.32 mi (364.23 km) |
| Festus to Cary (Illinois) | 298.51 mi (480.41 km) |
| Festus to Cary (North Carolina) | 660.84 mi (1,063.52 km) |
| Festus to Casa de Oro-Mount Helix (California) | 1,535.09 mi (2,470.49 km) |
| Festus to Casa Grande (Arizona) | 1,251.71 mi (2,014.43 km) |
| Festus to Casas Adobes (Arizona) | 1,227.71 mi (1,975.80 km) |
| Festus to Cascades (Virginia) | 704.57 mi (1,133.89 km) |
| Festus to Casper (Wyoming) | 892.79 mi (1,436.81 km) |
| Festus to Casselberry (Florida) | 841.98 mi (1,355.03 km) |
| Festus to Castaic (California) | 1,585.27 mi (2,551.25 km) |
