| Onalaska to Cloverleaf (Texas) | 998.26 mi (1,606.54 km) |
| Onalaska to Cloverly (Maryland) | 804.68 mi (1,295.00 km) |
| Onalaska to Clovis (California) | 1,567.50 mi (2,522.65 km) |
| Onalaska to Clovis (New Mexico) | 913.90 mi (1,470.77 km) |
| Onalaska to Clute (Texas) | 1,052.59 mi (1,693.99 km) |
| Onalaska to Coachella (California) | 1,508.16 mi (2,427.15 km) |
| Onalaska to Coalinga (California) | 1,621.04 mi (2,608.81 km) |
| Onalaska to Coamo (Puerto Rico) | 2,293.45 mi (3,690.95 km) |
| Onalaska to Coatesville (Pennsylvania) | 834.09 mi (1,342.35 km) |
| Onalaska to Cockeysville (Maryland) | 810.13 mi (1,303.78 km) |
| Onalaska to Cocoa (Florida) | 1,217.17 mi (1,958.85 km) |
| Onalaska to Cocoa Beach (Florida) | 1,223.93 mi (1,969.73 km) |
| Onalaska to Coconut Creek (Florida) | 1,364.01 mi (2,195.16 km) |
| Onalaska to Coeur d'Alene (Idaho) | 1,254.31 mi (2,018.62 km) |
| Onalaska to Cohoes (New York) | 881.23 mi (1,418.20 km) |
