| Onalaska to Castrovillari | 5,101.90 mi (8,210.72 km) |
| Onalaska to Catania | 5,170.71 mi (8,321.45 km) |
| Onalaska to Catanzaro | 5,161.52 mi (8,306.67 km) |
| Onalaska to Cattolica | 4,776.13 mi (7,686.44 km) |
| Onalaska to Cava de' Tirreni | 5,002.58 mi (8,050.88 km) |
| Onalaska to Cavallino | 5,152.75 mi (8,292.54 km) |
| Onalaska to Cavarzere | 4,698.74 mi (7,561.89 km) |
| Onalaska to Cave | 4,882.83 mi (7,858.16 km) |
| Onalaska to Cavriago | 4,660.76 mi (7,500.76 km) |
| Onalaska to Cavriglia | 4,749.75 mi (7,643.98 km) |
| Onalaska to Cazzago San Martino | 4,602.70 mi (7,407.33 km) |
| Onalaska to Ceccano | 4,909.72 mi (7,901.43 km) |
| Onalaska to Cecina | 4,722.07 mi (7,599.43 km) |
| Onalaska to Cefalu | 5,102.91 mi (8,212.34 km) |
| Onalaska to Ceglie Messapico | 5,110.44 mi (8,224.46 km) |
