| Sioux City to Campodarsego | 4,931.01 mi (7,935.69 km) |
| Sioux City to Campogalliano | 4,930.35 mi (7,934.63 km) |
| Sioux City to Campolongo Maggiore | 4,943.55 mi (7,955.88 km) |
| Sioux City to Camponogara | 4,941.82 mi (7,953.09 km) |
| Sioux City to Camposampiero | 4,928.50 mi (7,931.65 km) |
| Sioux City to Canegrate | 4,819.89 mi (7,756.86 km) |
| Sioux City to Canelli | 4,834.30 mi (7,780.05 km) |
| Sioux City to Canicatti | 5,391.90 mi (8,677.43 km) |
| Sioux City to Canosa di Puglia | 5,286.41 mi (8,507.66 km) |
| Sioux City to Cantu | 4,819.69 mi (7,756.55 km) |
| Sioux City to Caorle | 4,960.74 mi (7,983.54 km) |
| Sioux City to Capaci | 5,329.06 mi (8,576.29 km) |
| Sioux City to Capannori | 4,958.48 mi (7,979.90 km) |
| Sioux City to Capena | 5,111.90 mi (8,226.81 km) |
| Sioux City to Capo d'Orlando | 5,387.56 mi (8,670.44 km) |
