| Onalaska to Cordele (Georgia) | 917.75 mi (1,476.97 km) |
| Onalaska to Corinth (Mississippi) | 634.16 mi (1,020.58 km) |
| Onalaska to Corinth (Texas) | 806.63 mi (1,298.15 km) |
| Onalaska to Cornelius (North Carolina) | 798.52 mi (1,285.10 km) |
| Onalaska to Cornelius (Oregon) | 1,557.56 mi (2,506.65 km) |
| Onalaska to Corning (New York) | 724.01 mi (1,165.18 km) |
| Onalaska to Corona (California) | 1,568.68 mi (2,524.54 km) |
| Onalaska to Coronado (California) | 1,597.37 mi (2,570.71 km) |
| Onalaska to Corpus Christi (Texas) | 1,168.14 mi (1,879.94 km) |
| Onalaska to Corsicana (Texas) | 864.03 mi (1,390.53 km) |
| Onalaska to Cortland (New York) | 760.56 mi (1,224.01 km) |
| Onalaska to Corvallis (Oregon) | 1,578.22 mi (2,539.90 km) |
| Onalaska to Coshocton (Ohio) | 541.01 mi (870.68 km) |
| Onalaska to Costa Mesa (California) | 1,592.81 mi (2,563.38 km) |
| Onalaska to Coto de Caza (California) | 1,580.01 mi (2,542.79 km) |
