| Hermiston to Cloverleaf (Texas) | 1,708.73 mi (2,749.94 km) |
| Hermiston to Cloverly (Maryland) | 2,178.00 mi (3,505.15 km) |
| Hermiston to Clovis (California) | 622.51 mi (1,001.83 km) |
| Hermiston to Clovis (New Mexico) | 1,154.59 mi (1,858.13 km) |
| Hermiston to Clute (Texas) | 1,738.65 mi (2,798.09 km) |
| Hermiston to Coachella (California) | 855.19 mi (1,376.29 km) |
| Hermiston to Coalinga (California) | 671.73 mi (1,081.04 km) |
| Hermiston to Coamo (Puerto Rico) | 3,561.33 mi (5,731.40 km) |
| Hermiston to Coatesville (Pennsylvania) | 2,208.32 mi (3,553.94 km) |
| Hermiston to Cockeysville (Maryland) | 2,184.45 mi (3,515.53 km) |
| Hermiston to Cocoa (Florida) | 2,408.29 mi (3,875.77 km) |
| Hermiston to Cocoa Beach (Florida) | 2,416.98 mi (3,889.75 km) |
| Hermiston to Coconut Creek (Florida) | 2,531.48 mi (4,074.03 km) |
| Hermiston to Coeur d'Alene (Idaho) | 174.98 mi (281.61 km) |
| Hermiston to Cohoes (New York) | 2,232.85 mi (3,593.42 km) |
