| Duluth to Cermik | 5,851.98 mi (9,417.85 km) |
| Duluth to Cesme | 5,437.58 mi (8,750.94 km) |
| Duluth to Ceyhan | 5,811.61 mi (9,352.88 km) |
| Duluth to Ceylanpinar | 5,945.40 mi (9,568.19 km) |
| Duluth to Cicekdagi | 5,620.98 mi (9,046.10 km) |
| Duluth to Cide | 5,449.13 mi (8,769.53 km) |
| Duluth to Cifteler | 5,531.41 mi (8,901.95 km) |
| Duluth to Ciftlik | 5,705.96 mi (9,182.86 km) |
| Duluth to Ciftlikkoy | 5,406.63 mi (8,701.13 km) |
| Duluth to Cihanbeyli | 5,630.65 mi (9,061.66 km) |
| Duluth to Cildir | 5,770.91 mi (9,287.38 km) |
| Duluth to Cilimli | 5,446.59 mi (8,765.45 km) |
| Duluth to Cinar | 5,903.33 mi (9,500.48 km) |
| Duluth to Cinarcik | 5,401.26 mi (8,692.49 km) |
| Duluth to Cine | 5,534.84 mi (8,907.47 km) |
