| Duluth to Kaneohe (Hawaii) | 4,012.48 mi (6,457.46 km) |
| Duluth to Kankakee (Illinois) | 445.82 mi (717.48 km) |
| Duluth to Kannapolis (North Carolina) | 981.47 mi (1,579.52 km) |
| Duluth to Kansas City (Kansas) | 544.79 mi (876.75 km) |
| Duluth to Kansas City (Missouri) | 542.54 mi (873.13 km) |
| Duluth to Kapaa (Hawaii) | 4,054.39 mi (6,524.91 km) |
| Duluth to Kapolei (Hawaii) | 4,028.70 mi (6,483.56 km) |
| Duluth to Katy (Texas) | 1,190.19 mi (1,915.43 km) |
| Duluth to Kaukauna (Wisconsin) | 254.86 mi (410.16 km) |
| Duluth to Kaysville (Utah) | 1,059.31 mi (1,704.79 km) |
| Duluth to Kearney (Missouri) | 524.76 mi (844.52 km) |
| Duluth to Kearney (Nebraska) | 543.90 mi (875.32 km) |
| Duluth to Kearns (Utah) | 1,074.94 mi (1,729.95 km) |
| Duluth to Kearny (New Jersey) | 987.73 mi (1,589.60 km) |
| Duluth to Keene (New Hampshire) | 1,003.90 mi (1,615.61 km) |
