| Duluth to Caltagirone | 5,075.54 mi (8,168.30 km) |
| Duluth to Caltanissetta | 5,045.88 mi (8,120.56 km) |
| Duluth to Calvisano | 4,527.20 mi (7,285.82 km) |
| Duluth to Calvizzano | 4,880.30 mi (7,854.08 km) |
| Duluth to Camaiore | 4,592.18 mi (7,390.40 km) |
| Duluth to Cameri | 4,459.33 mi (7,176.60 km) |
| Duluth to Camisano Vicentino | 4,567.87 mi (7,351.28 km) |
| Duluth to Campagna | 4,925.17 mi (7,926.30 km) |
| Duluth to Campagnano di Roma | 4,754.23 mi (7,651.19 km) |
| Duluth to Campi Bisenzio | 4,627.88 mi (7,447.86 km) |
| Duluth to Campi Salentina | 5,043.04 mi (8,115.99 km) |
| Duluth to Campiglia Marittima | 4,644.84 mi (7,475.14 km) |
| Duluth to Campobasso | 4,864.72 mi (7,829.01 km) |
| Duluth to Campobello di Licata | 5,052.43 mi (8,131.10 km) |
| Duluth to Campobello di Mazara | 4,989.05 mi (8,029.09 km) |
