| Duluth to Carterton | 3,825.78 mi (6,157.00 km) |
| Duluth to Castle Bromwich | 3,790.52 mi (6,100.25 km) |
| Duluth to Castleford | 3,760.05 mi (6,051.21 km) |
| Duluth to Castleton | 3,736.44 mi (6,013.21 km) |
| Duluth to Caterham | 3,898.04 mi (6,273.29 km) |
| Duluth to Catford | 3,893.71 mi (6,266.32 km) |
| Duluth to Caversham | 3,859.04 mi (6,210.53 km) |
| Duluth to Chaddesden | 3,786.66 mi (6,094.04 km) |
| Duluth to Chalfont Saint Peter | 3,868.41 mi (6,225.61 km) |
| Duluth to Chandlers Ford | 3,863.26 mi (6,217.32 km) |
| Duluth to Chapel en le Frith | 3,755.30 mi (6,043.58 km) |
| Duluth to Chapeltown | 3,765.73 mi (6,060.36 km) |
| Duluth to Chard | 3,810.40 mi (6,132.25 km) |
| Duluth to Charlton Kings | 3,804.84 mi (6,123.30 km) |
| Duluth to Chatham | 3,915.80 mi (6,301.87 km) |
