| Duluth to Kinston (North Carolina) | 1,094.82 mi (1,761.94 km) |
| Duluth to Kirkland (Washington) | 1,403.06 mi (2,258.00 km) |
| Duluth to Kirksville (Missouri) | 454.95 mi (732.17 km) |
| Duluth to Kirkwood (Missouri) | 573.00 mi (922.15 km) |
| Duluth to Kiryas Joel (New York) | 965.35 mi (1,553.58 km) |
| Duluth to Kissimmee (Florida) | 1,401.86 mi (2,256.07 km) |
| Duluth to Klamath Falls (Oregon) | 1,484.71 mi (2,389.41 km) |
| Duluth to Knightdale (North Carolina) | 1,035.19 mi (1,665.98 km) |
| Duluth to Knik-Fairview (Alaska) | 2,439.75 mi (3,926.40 km) |
| Duluth to Knoxville (Tennessee) | 857.84 mi (1,380.55 km) |
| Duluth to Kokomo (Indiana) | 529.35 mi (851.91 km) |
| Duluth to Kuna (Idaho) | 1,198.83 mi (1,929.32 km) |
| Duluth to Kyle (Texas) | 1,199.74 mi (1,930.79 km) |
| Duluth to La Cañada Flintridge (California) | 1,609.71 mi (2,590.58 km) |
| Duluth to La Crescenta-Montrose (California) | 1,610.23 mi (2,591.42 km) |
