| Onalaska to Cockermouth | 3,763.21 mi (6,056.30 km) |
| Onalaska to Colchester | 4,011.21 mi (6,455.42 km) |
| Onalaska to Coleford | 3,885.93 mi (6,253.79 km) |
| Onalaska to Colne | 3,831.79 mi (6,166.68 km) |
| Onalaska to Colwyn Bay | 3,795.68 mi (6,108.55 km) |
| Onalaska to Congleton | 3,853.66 mi (6,201.87 km) |
| Onalaska to Conisbrough | 3,878.39 mi (6,241.66 km) |
| Onalaska to Connahs Quay | 3,821.39 mi (6,149.94 km) |
| Onalaska to Consett | 3,810.90 mi (6,133.05 km) |
| Onalaska to Conwy | 3,791.28 mi (6,101.48 km) |
| Onalaska to Cookstown | 3,642.85 mi (5,862.60 km) |
| Onalaska to Corby | 3,931.76 mi (6,327.55 km) |
| Onalaska to Corfe Mullen | 3,943.94 mi (6,347.15 km) |
| Onalaska to Corsham | 3,914.32 mi (6,299.48 km) |
| Onalaska to Coseley | 3,879.40 mi (6,243.29 km) |
