| Onalaska to Conyers (Georgia) | 805.35 mi (1,296.09 km) |
| Onalaska to Cookeville (Tennessee) | 613.51 mi (987.35 km) |
| Onalaska to Coolidge (Arizona) | 1,329.28 mi (2,139.27 km) |
| Onalaska to Coon Rapids (Minnesota) | 136.47 mi (219.63 km) |
| Onalaska to Cooper City (Florida) | 1,376.24 mi (2,214.84 km) |
| Onalaska to Coos Bay (Oregon) | 1,640.82 mi (2,640.65 km) |
| Onalaska to Copiague (New York) | 935.44 mi (1,505.44 km) |
| Onalaska to Coppell (Texas) | 816.59 mi (1,314.17 km) |
| Onalaska to Copperas Cove (Texas) | 954.94 mi (1,536.82 km) |
| Onalaska to Coral Gables (Florida) | 1,398.32 mi (2,250.38 km) |
| Onalaska to Coral Springs (Florida) | 1,362.76 mi (2,193.15 km) |
| Onalaska to Coral Terrace (Florida) | 1,394.79 mi (2,244.69 km) |
| Onalaska to Coralville (Iowa) | 152.55 mi (245.50 km) |
| Onalaska to Coram (New York) | 949.76 mi (1,528.49 km) |
| Onalaska to Corcoran (California) | 1,585.50 mi (2,551.61 km) |
